A mystery at the library: every AI model's reply, tested

Write a short story from this idea, with a title on the first line. Keep every name and detail in it, and give it a real ending. Make it a mystery, with a clue the reader could spot.

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Someone keeps leaving a single red glove on the steps of the Brightwater library, and the librarian, Noor, decides to find out who.

How the AI story generator's test inputs are scored, with every model's results on all five.

1. Claude Haiku 4.5

   Failed: missing "brightwater".

   The Red Glove Mystery
   
   Noor found the first glove on a Tuesday morning, lying on the concrete step like a dropped hand. She picked it up—soft leather, expensive, left hand only—and left it on the lost and found desk. By Friday, another red glove sat on the steps. Also a left glove.
   
   "Someone's playing a game," muttered Pam, the library's assistant, when Noor showed her the growing collection.
   
   Noor decided to stake out the steps. She sat in the staff room by the window with a notebook, watching for three mornings. On Wednesday, she saw nothing. Thursday was the same. Friday morning, a figure approached before dawn—too dark to see clearly, but they moved with a limp, favoring their right leg.
   
   Noor rushed outside, but whoever it was had vanished down Maple Street.
   
   That afternoon, old Mr. Chen came in for his usual chess book. Noor noticed his right hand was bandaged heavily.
   
   "Chess accident?" she asked carefully.
   
   "No," he said, looking down. "I had surgery on my left shoulder. Nerve damage. Couldn't move my left arm for months." He held up his right hand. "Physical therapy. They made me practice fine motor skills."
   
   He paused at the desk. "Strange thing—I keep buying left gloves for practice, to strengthen my right hand picking them up. I've been leaving them on the steps because my daughter lives near here now, and I wanted to see if the library would display them. A reminder that healing takes time."
   
   Noor smiled. She placed all the red gloves in the library window, arranged like an artwork, with a small sign: "One Step Forward."
   
   Mr. Chen wept when he saw it the next day.

   379 tokens in, 395 out · 6.6 s · $0.0024 · 1 message on Pro · answered by anthropic/claude-haiku-4.5 via Azure · September 28, 2026

2. Claude Sonnet 5

   Failed: missing "brightwater".

   The Glove on the Steps
   
   The first glove appeared on a Tuesday in October, tucked against the library's stone banister like it had settled there on purpose. It was red wool, left-handed, the fingertips gone soft and pilled from wear. Noor almost tossed it in the lost-and-found bin without a second look. Then another one showed up the next Tuesday. And the one after that.
   
   By the fourth week, Noor had started keeping them in a shoebox behind the circulation desk. Six gloves now, all left-handed, all red, all the same worn wool. She noticed something else, too: each one had a tiny cloth tag stitched inside the cuff, faded but legible. T.W.
   
   "Maybe someone's just clumsy," said Desmond, who shelved nonfiction on Tuesdays and Thursdays. "Drops a glove, doesn't notice, goes home."
   
   "Six times? Same hand? Same day?" Noor shook her head. "Nobody's that clumsy on a schedule."
   
   She decided to watch. That Tuesday she arrived before sunrise and sat in her car across the street, thermos of tea steaming in the cold. At 6:50, the garbage truck rumbled past. At 7:05, the yellow school bus hissed to a stop at the corner, and children shuffled aboard, breath fogging in the gray light. At 7:12, a boy broke off from the group at the bus stop — no older than eleven — jogging up the library steps. He crouched, set something down gently, and jogged back before the bus doors folded shut behind him.
   
   Noor was out of the car before she'd thought it through. She crossed the street just as the bus pulled away, and there on the top step sat a red glove, its twin missing.
   
   The next Tuesday, she was waiting on the steps herself when the boy came running up.
   
   He froze. "I wasn't stealing anything."
   
   "I know," Noor said. "I want to know why."
   
   His name was Teddy Whitfield — T.W., same as the tags. His grandmother ran a mending shop three blocks over, Whitfield's Repairs, and she'd been teaching him to knit since summer. "She makes the gloves in pairs," Teddy explained, "but I only ever knit the left one right. My right-hand ones come out lopsided. So I keep the good lefts and give them away."
   
   "To the library?"
   
   "There's a man who sleeps by the returns box some nights. I see him from the bus. He's got no gloves at all. I figured — leave it somewhere he'd find it, but not somewhere that'd embarrass him if somebody saw."
   
   Noor thought of the man who sometimes sat on the library steps after closing, the one she'd offered coffee to more than once. She hadn't put it together — that he came back nightly, and left before dawn, and that somehow, each week, a left glove was exactly what he needed, because his right hand, she now remembered, was gloved already, in a black mitten that didn't match anything.
   
   The following Tuesday, Noor left a small paper bag by the returns slot: a right-handed glove, red, hand-knit, slightly lopsided at the thumb. Teddy grinned when he saw it disappear from the step by Wednesday morning.
   
   "Guess my knitting's good enough after all," he said.
   
   "Good enough for someone who needed exactly that," Noor said, and unlocked the library doors for the day.

   472 tokens in, 1,684 out (597 of them reasoning) · 26.8 s · $0.0178 · 1 message on Pro · answered by anthropic/claude-sonnet-5 via Anthropic · September 28, 2026

3. GPT-6 Luna

   Passed: Stated all 4 facts with the section.

   The Glove on the Seventh Step
   
   Every morning, Noor found a single red glove on the steps of the Brightwater library.
   
   It was always on the seventh step. She asked the delivery driver, the early readers, and the people who came to return books. Nobody knew who had left it.
   
   On Friday, Noor arrived before sunrise and waited behind the glass doors. A small figure crept up the steps, placed the glove down, and hurried away.
   
   Noor opened the door. “I’m not going to scold you,” she called.
   
   The figure stopped. A boy turned back, his bare right hand tucked into his coat.
   
   “Why leave it here?” Noor asked.
   
   The boy glanced at the glove. “So you’d look.”
   
   “Look at what?”
   
   He pointed to the seventh step. Noor crouched. The glove’s thumb, as always, pointed toward a narrow crack between the stone and the wall. She slid her fingers into it and pulled out a damp library card.
   
   The boy’s name was written on it. “I dropped this last week,” he said. “I saw it fall in there, but I couldn’t reach it. I kept leaving the glove to show you.”
   
   Noor turned the card over. “You could have just told me.”
   
   “I thought I’d get in trouble for losing it.”
   
   “You’re not in trouble,” Noor said. “But the glove did make a very good arrow.”
   
   Together they fetched a long ruler from the desk and freed the card. Noor dried it carefully, then handed it back.
   
   The boy took the red glove, slipped it on, and smiled.
   
   That morning, for the first time in a week, the seventh step was empty.

   357 tokens in, 997 out (646 of them reasoning) · 10.8 s · $0.0003 · 1 message on Pro · answered by openai/gpt-6-luna via OpenAI · September 28, 2026

4. GLM 5.3 Flash

   Passed: Stated all 4 facts with the section.

   The Red Glove
   
   The first glove appeared on a Monday, sitting on the bottom step of the Brightwater library like a small red question mark. Noor picked it up, checked the lost and found box, and moved on.
   
   By Thursday there was another one. Then one the following week, and the week after. Always a single red glove, always on the bottom step, always in the early morning before opening.
   
   "Maybe someone's losing them," said Dev, the teenage volunteer who shelved the picture books.
   
   "Four times?" Noor turned the latest glove over in her hands. It was worn thin at the fingers, mended neatly at the thumb with red thread. Someone cared about this glove. Someone wasn't losing it. Someone was leaving it.
   
   She started arriving early. On Friday she waited behind the hedge across the street, tea going cold in her thermos. At six-forty, a figure came down Hilltop Lane — Mr. Aldous, who lived in the blue house and came to the library every Wednesday to read newspapers he could perfectly well read at home.
   
   He set the glove down carefully, adjusted it so the fingers pointed at the door, and turned to go.
   
   "Why?" Noor called.
   
   The old man stopped. "My wife," he said. "Every winter she dropped one glove on these steps when she walked me here. Said it was so I'd have to come back and find her." He looked at his shoes. "She passed in March. I've been leaving them where she dropped them. I don't know why. It just feels like she's still walking me here."
   
   Noor looked at the glove, then at the mended thumb. "Come in," she said. "It's cold out. I'll put the kettle on."
   
   The next Monday, the glove was on the step again — but this time, when Noor opened the door, there was a second glove waiting inside on the front desk, a note tucked in its palm: One for each of us. Wednesdays?
   
   The reader's clue: Dev mentions early on that Mr. Aldous only ever comes on Wednesdays — the same day his wife used to walk him to the library.

   368 tokens in, 454 out · 7.4 s · $0.0003 · 1 message on Pro · answered by z-ai/glm-5.3-flash via Friendli · September 28, 2026

5. Claude Haiku 5.5

   Passed: Stated all 4 facts with the section.

   Red Glove on the Brightwater Steps
   
   Every Tuesday morning, Noor unlocked the Brightwater library and found the glove waiting on the top step. It was always the same: a single red wool glove, the right hand, its fingertips worn thin and a loop of grey thread stitched near the cuff.
   
   The first time, she laughed and dropped it in the lost-property box. The second time, she didn't laugh. By the fifth Tuesday she had started keeping a notebook.
   
   "Somebody's leaving it on purpose," she told Mr. Okafor, who came in every day to read the newspapers and never hurried. "It's never on the path or the bench. Always the top step, facing the door."
   
   "Maybe it's a message," he said, turning a page. "Or a child who lost the other one and can't stop searching."
   
   "Then why leave it at all? Why not keep it?"
   
   He shrugged. "People keep odd things."
   
   On the sixth Tuesday, Noor arrived early, hid behind the returns cart with a thermos of tea, and waited. The street was quiet. At twenty past seven a bicycle wheeled around the corner, and a boy of about ten braked hard beside the steps. He glanced both ways, pulled a red glove from his coat pocket, and set it down carefully on the top step.
   
   Noor stepped out. "You're the glove-leaver."
   
   The boy jumped, nearly tipping his bicycle. "I wasn't doing anything bad."
   
   "I didn't say you were. What's your name?"
   
   "Tomas. Tomas Brenner." He looked at the glove. "It's my sister's. She lost the left one at the bus shelter on Harbor Road. The bus driver said the lost property office was closed for the holidays, so I thought if I left this one here, someone might pick up the pair."
   
   Noor sat down on the step beside the glove. "But you're still leaving only the right one. Why keep bringing it?"
   
   Tomas's face went pink. "Because I keep finding the left one. Every week I walk past the bus shelter and it's there in the gutter, and I think if I put it with the right one, she'd have a pair again. But I never can carry them both without losing one."
   
   Noor looked at the glove, then at the grey thread near the cuff. The thread matched the grey loop on the left glove she had hung on the staff-room hook the previous week, when a girl had handed it in at the desk. She had not connected them until now.
   
   "Wait here," she said, and went inside, returning with the left glove, stitched with the same grey loop.
   
   Tomas stared. "That's hers!"
   
   Noor laid the two gloves side by side on the step. "Then you don't have to carry anything. Your sister can collect them from the desk. I'll post a note on the board."
   
   Tomas grinned, wheeled his bicycle around, and rode off without another word.
   
   Mr. Okafor, watching from the window, shook his head. "Odd things," he said, "turn out to have ordinary reasons."

   474 tokens in, 955 out · 6.8 s · $0.0005 · 1 message on Pro · answered by anthropic/claude-haiku-5.5 via Anthropic · October 7, 2026

6. Gemini 3.8 Flash

   Passed: Stated all 4 facts with the section.

   The Red Wool Mystery
   
   Every Tuesday at dawn, a scarlet wool glove appeared on the bottom stone step of the Brightwater library. Noor, the head librarian, had collected three of them now. All three were knitted from coarse crimson yarn, and all three were made for the left hand. 
   
   On the fourth Tuesday, Noor hid behind the frosted glass of the entrance doors thirty minutes before opening. A brisk wind blew fallen leaves across the plaza. At seven o'clock sharp, the shadow of a figure approached. 
   
   Through the narrow brass mail slot, Noor watched a person in an oversized navy coat step onto the bottom stair. A hand reached out and set down a fourth red glove. 
   
   Noor pushed the heavy doors open with a bang. "Excuse me!"
   
   The figure whirled around, startled. It was young Julian, who lived two doors down from the library. His cheeks burned bright red, though the rest of his face was pinched from the morning chill. In his right hand, he held an empty wooden knitting needle. His right hand was completely bare, pale and shivering, while his left hand was tucked snugly inside a thick gray mitten. 
   
   Noor walked down the steps and scooped up the freshly dropped red wool. She looked at Julian, then at the empty mitten on his other hand.
   
   "Julian," Noor said softly, "you're trying to knit your own winter pair, aren't you?"
   
   Julian looked down at his boots and sighed. "I followed the pattern from your beginner's craft book. But every time I try to reverse the stitch for my right hand, the thumb comes out completely wrong. I only know how to make lefts, and I was too embarrassed to return the book."
   
   Noor smiled, taking the fourth glove. "Bring your yarn inside. I have an advanced knitting guide on the second floor, and we have an hour before the doors open."

   370 tokens in, 393 out · 3.3 s · $0.0009 · 1 message on Pro · answered by google/gemini-3.8-flash via Google AI Studio · September 28, 2026

7. DeepSeek V4.1 Flash

   Passed: Stated all 4 facts with the section.

   The Red Glove on the Brightwater Steps
   
   The first glove showed up on a Tuesday, a left-hand red knit resting on the second step of the Brightwater library like it had been placed there, not dropped. Noor found it on her way in, keys still in her hand.
   
   By Friday there were four. All left hands. All the same dull red.
   
   "Kids," said Mr. Pelt, the custodian, sweeping around them without touching a one. "Somebody's got a bag of odd gloves and a grudge."
   
   "No," Noor said. She was looking at the cuff of the newest one. A small paper tag, the kind that comes on a new pair, had been tied there with thread. On it, in pencil, someone had written a number: 7.
   
   She checked the others in her desk drawer. 10. 9. 8. "Mr. Pelt, these are counting down."
   
   So on Monday she came early, before the streetlights quit. She sat in the dark behind the returns slot and waited.
   
   At six-forty a girl came up the steps in a school blazer, one arm of it too long, and set a red glove on the step the way you'd set down something valuable. Then she turned to go.
   
   "Iva," Noor said, because she knew every child who came in for the Tuesday read-aloud.
   
   The girl froze. "It's only six," she said. "I've got six left."
   
   "Six left of what?"
   
   Iva pulled a plastic bag from her coat. Inside were five more red gloves, and a note card that said, in careful letters, For the Lost and Found Lady. "Gran knitted them," Iva said. "Both hands. But I lost one of every pair on the walk here, all winter, and she kept knitting. She finished the last one yesterday and went home to Lodz. So I'm giving them back. One a day. Until the bag's empty."
   
   Noor looked at the tag on today's glove. 5.
   
   "Come inside," she said. "It's cold on these steps."
   
   That morning the library's lost-and-found basket came out of the cupboard and went onto the front desk, where people could see it. Noor pinned a card to it: If you have lost something, take a look. If you have found something, leave it be.
   
   By spring the basket held two scarves, a pair of glasses, eleven single gloves, and one mismatched pair of red mittens that Iva, on her way past, stopped to straighten.

   385 tokens in, 1,613 out (1,076 of them reasoning) · 9.2 s · $0.0020 · 1 message on Pro · answered by deepseek/deepseek-v4.1-flash via Together · October 8, 2026

8. GPT-6.1 Sol

   Passed: Stated all 4 facts with the section.

   The Glove on the Steps
   
   Every Monday, Noor found a single red glove on the steps of the Brightwater library.
   
   The first went into lost property. The second made her frown. By the fourth, she had lined them up on her desk.
   
   All were left-handed. All had the same crooked repair across the thumb.
   
   “You’ve started a collection,” said Mr. Vale, returning a gardening book.
   
   “Someone has started it for me.”
   
   He tucked his left hand into his coat pocket. With his right, he placed the book beside the gloves.
   
   That evening, Noor locked the gloves in her desk. On Sunday, she took one home.
   
   Monday morning, another lay on the steps.
   
   This one had no repair.
   
   Noor opened her desk. Empty.
   
   She examined the lock, then the narrow gap beneath the drawer. A glove could slip through it—but only if someone first reached behind the desk.
   
   On Sunday afternoon, she waited between the shelves.
   
   At four, Mr. Vale entered through the side door with the key he used to water the library’s plants. He checked the drawer, sighed, and pulled a new red glove from his pocket.
   
   “Why?” Noor asked.
   
   He nearly dropped it.
   
   “My wife knitted the old one,” he said. “I lost it here last winter. You put it in that drawer.”
   
   “You could have asked.”
   
   “I tried. Twice.” He looked toward her desk, crowded with notices and unfinished forms. “You said you were busy. Then I thought if you kept finding it, you’d ask me.”
   
   Noor fetched the repaired glove from her bag.
   
   “I’m asking now.”
   
   He took it carefully.
   
   The following Monday, the steps were bare. Inside, Noor set two cups beside the gardening books, and left the paperwork in her drawer.

   357 tokens in, 366 out · 8.1 s · $0.0022 · 1 message on Pro · answered by openai/gpt-6.1-sol via OpenAI · September 29, 2026

9. GLM 5.3

   Passed: Stated all 4 facts with the section.

   The Red Glove on the Steps
   
   Every Monday morning, a single red glove sat on the front steps of the Brightwater library, right where the wrought-iron railing met the first stone. Noor, the librarian, noticed it the third week it happened, when the frost had stiffened the wool into a little mittened fist.
   
   "Someone's losing their gloves," said old Mr. Pemberton, stamping his returns. "Or someone's odd."
   
   Noor examined the glove closely. Red wool, knit, and always the right hand. Never a pair. She pinned a note to the library door: FOUND: ONE GLOVE, EVERY MONDAY. PLEASE CLAIM. Nobody claimed it.
   
   On the fourth Monday, Noor arrived early and hid behind the book drop with a thermos of tea. At half past six, before the sun had properly risen, a figure in a long coat came up the walk, placed something on the step, and hurried away toward the bakery.
   
   Noor followed, quietly. The figure turned at the corner of Mill Street — and Noor recognized her at once. Mrs. Halloway, who taught the Tuesday knitting circle in the library's back room. Mrs. Halloway, whose left hand was always gloved in red wool, every Tuesday, even indoors.
   
   "Your right glove," Noor said, holding it out. "You leave me one every week."
   
   Mrs. Halloway's cheeks went pink. "My sister knitted me ten pairs before she passed in the autumn. I can't bear to keep them in a drawer, unused. But I can't quite bear to wear two either, so I—" she laughed, wet-eyed — "I wear one and give the other away. The steps seemed a good place. Somebody must need them."
   
   Noor looked at the glove, then at Mrs. Halloway's one red hand. "Ten pairs," she said. "We've found four. How about this: you bring the rest, and I'll put a basket in the lobby. Free gloves for cold hands. With a card that says who made them."
   
   Now, every winter, the basket by Brightwater's door stays full of red wool, and every Tuesday Mrs. Halloway wears one glove and knits new ones — in every color but red.

   368 tokens in, 529 out (59 of them reasoning) · 4.2 s · $0.0022 · 1 message on Pro · answered by z-ai/glm-5.3 via Friendli · September 28, 2026

10. Gemini 4 Argon

    Passed: Stated all 4 facts with the section.

    The Left Hand of Brightwater
    
    For three Tuesdays in a row, a single red glove waited on the top step of the Brightwater library. Noor, the head librarian, picked up the third one at seven in the morning, holding it by the cuff. Like the others, it was knitted from thick crimson wool, meant for a left hand, and smelled faintly of cedarwood shavings.
    
    Inside, she lined all three gloves up on the return desk. Mr. Henderson shuffled past toward the newspapers, his cane tapping the floorboards. Next came little Leo, dragging a canvas bag of picture books, followed by Clara from the bakery, wiping flour from her apron. Lastly, Arthur, the retired carpenter who built the library's oak shelves, walked in rubbing his bare, chapped hands against the morning chill.
    
    "Cold one today, Noor," Arthur said, heading straight for the mystery section.
    
    Noor looked down at the gloves, then sniffed the cuff of the newest one again. Cedarwood. She walked into the stacks and found Arthur squinting at the bottom shelf, reaching out with his right hand to pull a novel free. His left arm stayed tucked against his coat, the empty sleeve pinned neatly at the pocket.
    
    Noor held out the three left-handed gloves. "You only ever need the right one from each pair you buy," she said softly.
    
    Arthur paused, a sheepish smile breaking across his weathered face. "My sister knits me a pair every autumn. It felt wrong to throw the left ones out, and the library steps always looked so grey."
    
    Noor took a brass cup hook from her pocket and screwed it into the end of the oak mystery shelf. She hung the three red gloves like bright lanterns against the dark wood.
    
    "Keep bringing them," Noor said, handing him his book. "We can use the color, and next Tuesday we'll start a display for single mittens looking for a match."

    403 tokens in, 401 out · 10.2 s · $0.0024 · 1 message on Pro · answered by google/gemini-4-argon via Google AI Studio · October 15, 2026

11. Kimi K3

    Passed: Stated all 4 facts with the section.

    The Glove on the Steps
    
    Every Monday for a month, Noor unlocked the Brightwater library and found a single red glove on the steps. Always the left one. Always dry, even after rain.
    
    "Someone's playing a joke," said Mr. Abernathy, stamping his returns.
    
    But Noor noticed what she almost didn't: the glove was always tucked under the doormat's corner, dry beneath it. Placed there after the library closed, by someone who knew she'd lift the mat.
    
    So one Friday she stayed late, lights off, watching through the glass door. At dusk, old Mrs. Fenwick shuffled up the path, her red scarf bright against her grey coat. She knelt stiffly, laid the glove down, patted the mat over it, and whispered something Noor couldn't hear.
    
    Noor opened the door. "Mrs. Fenwick? That's the fourth glove this month."
    
    The old woman startled, then flushed. "My Thomas and I met on these steps, fifty years ago. I dropped my glove; he picked it up." She twisted her ring. "He passed in spring. I keep leaving them hoping—it's foolish."
    
    "Not foolish," Noor said gently. "But you're losing gloves to the wind."
    
    Mrs. Fenwick looked down. "He always said I left my heart everywhere I went."
    
    The next Monday, there was no glove on the steps. Instead, Noor found Mrs. Fenwick inside, shelving donated books in the warm, a red glove pinned safely inside her coat pocket. And beside the returns desk, a small framed note now hung: Lost things may be claimed here. Thomas's glove, the right one, waited in the lost-and-found drawer—where, Noor decided, some things should stay until someone comes back for them.

    445 tokens in, 431 out (50 of them reasoning) · 13.1 s · $0.0041 · 1 message on Pro · answered by moonshotai/kimi-k3 via Wafer · September 28, 2026

12. Mistral Large 4

    Passed: Stated all 4 facts with the section.

    The Red Glove
    
    Noor swept the steps of the Brightwater library each morning, but on Tuesday she found a single red leather glove on the third step. She picked it up, felt the soft lining, and hung it on the lost-and-found hook by the door.
    
    By Friday, another had appeared in the exact same spot. Then another on Monday. Always the left hand. Always immaculate, as if never worn. Noor decided to find out who.
    
    She hid behind the newspaper stand at dusk, coffee cooling in her hands. At a quarter past six, a figure approached: a tall man in a charcoal coat, moving slowly. With his bare hand, he placed a new red glove on the step, pressed it flat with his palm, and walked away without looking back.
    
    Noor stepped out. "Sir? Excuse me?"
    
    The man stopped. His face was weathered and kind, and very tired. "I'm sorry," he said. "I didn't mean to litter."
    
    "It's not litter," Noor said, holding up the collection she'd gathered. "Is it yours?"
    
    He nodded, eyes on the pavement. "Hers, actually. Margaret. We used to sit on these steps, fifty years ago. She always wore red gloves. I find them in coat pockets, in drawers. I leave them here. It feels like she's still coming to meet me."
    
    Noor looked at the glove, then at the empty space beside him. "Would you like to come inside? The reading room has a heater, and I put the kettle on at four."
    
    The man blinked. Then he smiled, a small, crumpled thing. "Yes. Yes, I'd like that."
    
    He stepped over the threshold, and Noor closed the door behind him. The next morning, the steps were bare, but inside, by the sunny window, two chairs sat side by side, one with a book open and a red glove resting on the arm.

    363 tokens in, 3,527 out (3,156 of them reasoning) · 32.9 s · $0.0076 · 1 message on Pro · answered by mistralai/mistral-large-4-0 via Mistral · October 9, 2026

13. Claude Sonnet 5.5

    Passed: Stated all 4 facts with the section.

    The Red Glove Mystery
    
    The first red glove appeared on a Monday, folded over the top step of the Brightwater library like a small hand waving hello. Noor Haddad put it in the lost-and-found basket and thought nothing more of it.
    
    On Tuesday there was another. Also red, also wool, also a left hand.
    
    By Friday the basket held four left gloves, and Noor was sure of one thing: nobody loses four left gloves in a week. Somebody was leaving them.
    
    She began keeping notes on an index card. The gloves were hand-knit, with a small braided cuff. Each one had a faint smell of peppermint. Each appeared before opening, though the steps had been swept the night before, so the gloves came in the dark hours or at dawn.
    
    On Saturday Noor arrived at five and hid behind the returns cart in the vestibule. At ten past six the door handle rattled, though nothing came in. A bicycle bell chimed once outside. When she rushed out, the fifth glove sat on the step and the street was empty, except for old Mr. Okafor, who was unlocking the bakery across the road.
    
    "Did you see anyone?" she asked.
    
    "Only the paper boy," he said, dusting flour from his sleeve. "Cold morning for it. He's always got his hands tucked in his coat."
    
    Noor looked at her index card. Peppermint. Bicycle. She hadn't smelled peppermint on Mr. Okafor, only on the glove, and the bakery smelled of bread and cinnamon.
    
    That afternoon a boy of about ten named Teodor came in to return a book on knots. He pulled off his coat, and his bare right hand was red with cold, while his left was pushed deep into his pocket.
    
    "Teodor, where's your other glove?" Noor asked gently.
    
    He went quiet. Then he took out a single red glove, a right hand, braided at the cuff. "My grandmother knits them in pairs," he said. "But I lost the right one last winter, on your steps. I kept coming back to look. Then I thought if I left the lefts, whoever found my right would know it matched."
    
    Noor opened the basket and dug to the bottom. There, under a scarf, was a red right glove she had filed away months ago.
    
    Teodor put on the pair and grinned. From then on, Noor kept a hook by the door for anything found, and every Monday a peppermint arrived on the step instead.

    474 tokens in, 774 out · 8.7 s · $0.0087 · 1 message on Pro · answered by anthropic/claude-sonnet-5.5 via Anthropic · September 28, 2026

14. GPT-6 Sol

    Passed: Stated all 4 facts with the section.

    The Red Glove
    
    On Monday, Noor found a single red glove on the steps of the Brightwater library. She put it in the lost-and-found box.
    
    On Tuesday, it was back. Noor set it on her desk, where its owner could see it through the window.
    
    On Wednesday morning, there it lay again—on the third step, just as before. Noor picked it up. Beneath it, a thin crack ran across the stone.
    
    A boy came hurrying up the steps with an armful of books. “Wait,” Noor called.
    
    He stopped. She pressed the toe of her shoe against the cracked step. It rocked with a sharp click, and the boy backed away.
    
    “That’s why the glove’s there,” said a voice behind her.
    
    Ivo, who swept the library steps before opening, stood holding his broom. His left hand was bare.
    
    “I reported the step on Monday,” he said. “They told me someone would come. Until then, I wanted people to walk around it.”
    
    “And I kept taking your warning inside.” Noor looked at the glove in her hand. “Why didn’t you tell me?”
    
    “Your lights weren’t on when I finished my shift. I left a note, too.”
    
    Noor found it when she opened her office: a small slip caught under a pile of returned-book notices. She phoned for a repair, then stood by the steps and showed visitors the safe way in.
    
    By Friday, the stone was firm beneath her shoe. Ivo arrived to find the red glove on Noor’s desk, beside a note in her handwriting: “Thank you. Next time, knock—even if the lights are off.”
    
    Ivo read it, smiled, and put his glove back on.

    357 tokens in, 1,935 out (1,576 of them reasoning) · 26.3 s · $0.0100 · 1 message on Pro · answered by openai/gpt-6-sol via OpenAI · September 28, 2026

15. DeepSeek V4 Pro

    Passed: Stated all 4 facts with the section.

    The Third Step
    
    Noor found the first red glove on a Tuesday in October. It lay on the third step of the Brightwater library, fingers pointed at the big oak door, as if it had climbed up and stopped to rest.
    
    She carried it inside and dropped it in the lost and found basket. A week later, another appeared. Same step. Same pose. A left glove, fine red wool, a dusting of pale limestone powder on the palm, and a fresh tear in the tip of the index finger. Noor turned it over. A small safety pin held the cuff closed.
    
    "Odd," she told her assistant, Marta. "Someone's leaving these on purpose."
    
    Marta shrugged. "Maybe they want you to find them."
    
    Noor began arriving before dawn. On the third Tuesday, she hid behind the book return cart and watched the street. At first light, a woman in a gray coat climbed the steps, faced the library, and set down a red glove. She paused, touched the step once, and walked away.
    
    Noor ran out. "Wait!" The woman turned. Noor recognized her: Maeve Litwack, the stone carver who repaired headstones in the hill cemetery.
    
    "Why do you leave the gloves?" Noor asked.
    
    Maeve's hands were calloused, one knuckle raw and split. "They're for my brother," she said quietly. "He used to sit on that step after school and wait for me. Every day, rain or snow. He'd wave one glove in the air." She looked up. "I knit him a new pair every winter. He only ever wore the left one, because his right hand held mine."
    
    Noor looked at the glove on the step. Fingers toward the door. A left glove, always. The torn fingertip—Maeve must have ripped it herself, with her stone tools, every time.
    
    "I can't keep a pair with one gone," Maeve said. "So I leave it where he waited."
    
    Noor didn't pick up the glove. She let it rest on the third step. The next week, there were two gloves there, a full red pair, left to weather and fade.
    
    By spring, the town had placed a small wooden bench beside the steps. No one moved the gloves. And Noor, opening the library each morning, would touch the worn stone of the third step, just once, before she turned the key.

    359 tokens in, 2,490 out (1,986 of them reasoning) · 85.9 s · $0.0101 · 1 message on Pro · answered by deepseek/deepseek-v4-pro-0813 via Wafer · October 8, 2026

16. GPT-6 Astra

    Passed: Stated all 4 facts with the section.

    The Glove on the Steps
    
    On Monday, Noor found a single red glove on the steps of the Brightwater library. She hung it beside the returns desk.
    
    On Tuesday, another appeared. Wednesday brought a third.
    
    All three were left gloves. Each had a crooked yellow stitch across the thumb.
    
    “Someone’s losing a lot of right hands,” said Ellis, the library’s caretaker.
    
    “Or buying a lot of identical gloves,” Noor said.
    
    She left a note on the steps: PLEASE COME INSIDE. I HAVE YOUR GLOVES.
    
    On Thursday, a red glove lay beneath the note.
    
    Noor fetched the others to compare them. Only two remained beside the returns desk.
    
    She counted again. Then she borrowed a pencil and made a tiny dot inside each cuff.
    
    Friday’s glove bore a pencil dot.
    
    That afternoon, Noor moved her chair behind the tall atlas shelf. At closing time, Ellis walked past with his mop. He glanced toward her empty desk, slipped a red glove from its hook, and tucked it into his pocket.
    
    Noor stepped out.
    
    “Why not just ask me to look at the steps?”
    
    Ellis stopped.
    
    “Three repair requests,” he said quietly. “Nobody came.”
    
    Outside, he pointed to a narrow crack beneath the bottom step. Noor knelt. One corner shifted under her hand.
    
    “My granddaughter caught her foot there last month,” Ellis said. “I stitched those gloves for her. Thought you’d notice something bright.”
    
    “I did,” Noor said. “But next time, tell me what I’m looking at.”
    
    She locked the front entrance and opened the side door.
    
    By Tuesday, the loose step was repaired. Ellis’s granddaughter collected her gloves from Noor’s desk.
    
    This time, she left wearing a pair.

    357 tokens in, 358 out · 42.3 s · $0.0107 · 1 message on Pro · answered by openai/gpt-6-astra via OpenAI · September 28, 2026

17. Gemini 3.1 Pro

    Passed: Stated all 4 facts with the section.

    The Red Glove of Brightwater
    
    Noor stood on the stone steps of the Brightwater library, staring at the bright red woolen glove. It was the fourth morning in a row she had found one. It was always a left hand. It always smelled faintly of lavender and dusty parchment. She picked it up, noting a tiny frayed loop of yarn on the thumb, right where it might catch on a sharp edge.
    
    Inside, Noor arranged the return cart. The library was quiet. Arthur, the retired postman, was reading a thriller, flipping pages with a wet fingertip. Toby, a local college student, furiously took notes, his left hand tapping a yellow pencil. Clara, the town archivist, was sorting through uncatalogued historical town records, vigorously rubbing lavender lotion into her dry hands before handling the delicate paper. 
    
    Noor placed the red glove on the circulation desk. "I wonder whose this is," she said aloud to the quiet room. 
    
    Arthur looked up, his hands completely bare. Toby kept writing, oblivious. Clara froze. She glanced at the library's heavy iron front door, which had a famously jagged metal drop-box latch, and quickly shoved her left hand into her coat pocket.
    
    "You can just ask to borrow the archive files, Clara," Noor said softly, walking over to the archivist's table. "You do not have to sneak them back into the drop-box before sunrise." 
    
    Clara sighed, pulling her bare left hand from her pocket. A fresh, shallow scratch marked her thumb. "I thought patrons were not allowed to take the historical files home," Clara muttered, a blush rising on her cheeks. "I needed them for my research, but I was terrified you would ban me for taking them."
    
    Noor smiled and gently placed the red glove on the table. "Just fill out a loan slip next time," Noor said. "And be careful with that drop-box latch. It is ruining your winter wardrobe."

    370 tokens in, 2,620 out (2,212 of them reasoning) · 26.3 s · $0.0161 · 1 message on Pro · answered by google/gemini-3.1-pro-preview via Google AI Studio · September 28, 2026

18. Grok 4.7

    Passed: Stated all 4 facts with the section.

    The Glove on the Third Step
    
    Every morning that week, a single red glove waited on the third step of Brightwater library. Noor shook off the dew and turned it in her hands. The thumb always pointed at the brass letter slot, and a pale crumb clung to the wool.
    
    "Lost and found again," she told Mr. Hale. "Same red. Left hand. Nobody claims it."
    
    "Kids lose gloves," he said. "Kids don't come back."
    
    On Friday the crumb smelled like shortbread. Mrs. Adel brought a tin for the board every Friday, though she never arrived before ten.
    
    Noor unlocked early and waited in the dim lobby. The steps stayed empty. Then the letter slot clicked. A folded paper slid through, and a book thumped after it.
    
    She opened the door. A boy stood on the steps, one hand bare, the glove's mate crushed in his fist.
    
    "I didn't want Gran to see," he said. "Page forty tore. I put the glove so you'd look at the slot. You always do. I watched from the hedge."
    
    Noor took Robin's River and the note: Sorry. Cal.
    
    "Shortbread," she said. "And a thumb aimed at the slot all week. Come in. We'll mend the page before that tin arrives. Next time, knock."
    
    Cal stuffed the red glove into his pocket and stepped inside. Behind him, the third step held only morning light.

    1,591 tokens in, 2,752 out (2,454 of them reasoning) · 45.5 s · $0.0180 · 1 message on Pro · answered by x-ai/grok-4.7 via xAI · October 2, 2026

19. Claude Opus 5.5

    Passed: Stated all 4 facts with the section.

    The Glove on the Brightwater Steps
    
    For the fourth morning in a row, Noor found a single red glove on the steps of the Brightwater library. It lay palm-up, fingers curled, as if waiting to be shaken.
    
    She carried it inside and dropped it into the lost-and-found box beside the returns bin. Then she emptied the bin, as she did every morning. Among the picture books sat a battered copy of Birds of the Northern Coast, its card stamped overdue in 1987.
    
    "Another old one," she murmured, and set it aside.
    
    By closing time, the glove had vanished from the box.
    
    The next morning it was back on the steps. So was another ancient book in the bin, a cookbook this time, due in 1987.
    
    Noor frowned at the two books side by side. Both cards bore the same borrower's name: R. Okafor.
    
    That afternoon, old Mr. Okafor shuffled in, as he did every day, and asked if anyone had turned in his umbrella. Noor let him rummage through the lost-and-found. When he left, the red glove went with him, tucked into his sleeve.
    
    At dawn, Noor waited behind the front doors. Mr. Okafor climbed the steps, slipped a book into the bin, and laid the glove down with great care.
    
    She opened the door. "Mr. Okafor?"
    
    He startled, then sighed. "Rosa's books. My wife. She never returned them, and I couldn't bring them all at once. The glove was hers. I left it so someone would notice she'd sent one more back."
    
    Noor picked up the glove and pressed it into his hands. "How many are left?"
    
    "This was the last."
    
    She stamped the card: Returned. No fine. "Then come in," she said. "Rosa's chair by the window is still free."
    
    He came in, and that afternoon he read in Rosa's chair by the window.

    474 tokens in, 1,707 out (1,116 of them reasoning) · 22.3 s · $0.0360 · 1 message on Pro · answered by anthropic/claude-opus-5.5 via Google · September 28, 2026

20. Claude Fable 5.1

    Passed: Stated all 4 facts with the section.

    The Left-Hand Rule
    
    The first red glove appeared on a Monday, laid neatly on the third step of the Brightwater library like something set down on purpose.
    
    Noor picked it up, turned it over, and put it in the lost-property box. The second Monday brought another. By the fifth, she stopped pretending it was an accident.
    
    "Always Mondays," she told Mr. Adeyemi, who came in for the crosswords. "Always the left hand. And look." She held one up. "It rained all night, and this is bone dry."
    
    "So it's put there after the rain stops," he said. "Early. Before you open."
    
    Noor wrote that down. She also wrote down the pale smudge she'd noticed on every cuff, which she had taken for dust.
    
    At two o'clock, the bell over the door rang, as it did every Monday, and Lila from the bakery next door came in, apron still on, smelling of cinnamon.
    
    "Did anyone hand in a red glove?" she asked, as she always did.
    
    Noor looked at the smudge on her own thumb, white and soft. Flour.
    
    "Five of them," Noor said gently. "All left hands. You must have a drawer full of rights."
    
    Lila's face went the colour of the gloves. "I wanted a reason to come in," she said. "I never learned to read properly. I thought if I kept asking about a glove, one day I'd be brave enough to ask about that instead."
    
    Noor slid a library card across the desk and pulled out a chair.
    
    "Tuesdays, half past two," she said. "Bring the right hands. You'll want them, it's cold in here."
    
    Lila came on Tuesday. The steps stayed empty.

    474 tokens in, 1,323 out (793 of them reasoning) · 23.2 s · $0.0709 · 1 message on Pro · answered by anthropic/claude-fable-5.1 via Google · September 28, 2026

• A whole story in 150 words
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