A bedtime story: 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 gentle bedtime story to read aloud to a young child: simple words, a warm ending. Keep it to about 150 words.

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A hedgehog named Bramble can't fall asleep because the moon is too bright.

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

1. GPT-6 Luna

   Passed: Stated all 3 facts with the section.

   Bramble and the Moon
   
   Bramble the hedgehog curled up in his little bed beneath the hedge. But the moon shone so brightly through the leaves that his room was as pale as daytime.
   
   “I can’t sleep with all that light,” Bramble whispered.
   
   He pulled his blanket over his head. The moon still found a way in.
   
   Just then, a soft breeze rustled the hedge. It nudged a broad leaf across the gap in Bramble’s roof. The bright moonlight grew dim and gentle.
   
   “Thank you,” Bramble murmured to the breeze.
   
   Outside, an owl hooted once, and the night grew quiet again. Bramble took a slow breath. He listened to the sleepy crickets and felt his warm bed beneath him.
   
   Through one tiny space in the leaves, the moon sent a silver wink.
   
   “Good night, Moon,” said Bramble.
   
   Then he closed his eyes. The moon watched over the hedge while Bramble dreamed of soft leaves, quiet breezes, and a bright sky far, far away.

   362 tokens in, 237 out (17 of them reasoning) · 3.0 s · $0.0001 · 1 message on Pro · answered by openai/gpt-6-luna via OpenAI · September 28, 2026

2. GLM 5.3 Flash

   Passed: Stated all 3 facts with the section.

   Bramble and the Moon
   
   Bramble the hedgehog wriggled in his leafy bed, but his eyes would not close.
   
   "The moon is too bright," he grumbled.
   
   He tried a leaf over his face. Too itchy. He tried burrowing under moss. Too warm.
   
   The moon heard him and peeked through the tree. "I'm sorry, little hedgehog," she said softly. "I was shining my brightest."
   
   "Why?" asked Bramble.
   
   "Because I thought no one was looking at me tonight," said the moon.
   
   Bramble smiled a small hedgehog smile. "I'll look at you," he said. "Just gently, with my eyes half closed."
   
   The moon dimmed herself to a silvery whisper. Bramble snuggled down, watching her glow through half-shut eyes.
   
   "Goodnight, moon," he murmured.
   
   "Goodnight, Bramble," the moon whispered back.
   
   And that night, the moon and the hedgehog both slept, in a sky and a bed that felt just right.

   372 tokens in, 219 out · 10.3 s · $0.0002 · 1 message on Pro · answered by z-ai/glm-5.3-flash via Friendli · September 28, 2026

3. DeepSeek V4.1 Flash

   Passed: Stated all 3 facts with the section.

   Bramble the Hedgehog and the Too-Bright Moon
   
   Bramble the hedgehog could not sleep. The moon was too bright. It shone right into his little burrow under the old oak tree.
   
   Bramble pulled a leaf over his eyes. Still bright. He turned around twice. Still bright.
   
   So Bramble went to ask the moon, "Moon, please turn down your light."
   
   The moon smiled. "I cannot, little one. But I can share it."
   
   The moon sent a soft cloud to float across the sky. Now the light was dim and gentle, like a blanket.
   
   Bramble yawned. "Thank you, Moon."
   
   He curled up in his warm leaves. The cloud stayed. The meadow grew quiet. And Bramble slept, with a little moon-smile on his face, all night long, until the sun came peeping over the hill.

   389 tokens in, 196 out (16 of them reasoning) · 0.9 s · $0.0003 · 1 message on Pro · answered by deepseek/deepseek-v4.1-flash via Together · September 28, 2026

4. Gemini 3.8 Flash

   Passed: Stated all 3 facts with the section.

   Bramble and the Bright Moon
   
   Little Bramble the hedgehog curled into a tight, prickly ball in his bed of dry leaves. He squeezed his eyes shut. Still, a glowing beam of silver shone right into his cozy nest. 
   
   "The moon is too bright," Bramble whispered with a tiny sigh. "It thinks it is daytime."
   
   Bramble poked his damp nose out of the leaves. High above the tall oak tree, the big round moon smiled down, lighting up every twig and pebble. Bramble puffed his cheeks and blew a soft puff of air upward, but the moon did not dim. 
   
   Then, a fluffy night cloud floated gently across the sky. It drifted over the glowing moon like a soft gray blanket. The silver light turned dim and warm. The shadows grew quiet and still. 
   
   "Thank you, cloud," murmured Bramble. He tucked his tiny paws beneath his chin, let out a deep breath, and drifted fast asleep.

   377 tokens in, 197 out · 2.4 s · $0.0005 · 1 message on Pro · answered by google/gemini-3.8-flash via Google AI Studio · September 28, 2026

5. GLM 5.3

   Passed: Stated all 3 facts with the section.

   Bramble and the Bright Moon
   
   Bramble the hedgehog snuggled into his leafy nest, but his eyes stayed wide open.
   
   "The moon is too bright," he whispered. "It's like a big lantern shining right at me."
   
   He pulled a leaf over his nose. Still too bright. He turned to face the wall. Still too bright.
   
   Bramble padded outside to ask the moon to dim itself. "Please, Moon, I'm so sleepy."
   
   The moon didn't answer, but old Owl blinked down from her tree.
   
   "Silly little one," she hooted softly. "The moon isn't shining at you. It's keeping watch over everyone, so no one feels alone in the dark."
   
   Bramble looked up. The moon did seem friendly, like a nightlight left on just for him.
   
   He hurried back to his nest and curled up small. The silver light lay gentle on his leaves, warm as a blanket.
   
   "Goodnight, Moon," Bramble yawned. "Thank you for watching over me."
   
   And with the moon keeping watch, Bramble fell fast asleep.

   372 tokens in, 230 out · 2.0 s · $0.0014 · 1 message on Pro · answered by z-ai/glm-5.3 via Friendli · September 28, 2026

6. Claude Haiku 4.5

   Passed: Stated all 3 facts with the section.

   Bramble's Sleepy Night
   
   Bramble the hedgehog curled up in his cozy bed of leaves, but the moonlight was so bright it flooded through his burrow. He tossed and turned, his little spines tickling the soft moss.
   
   "I cannot sleep," Bramble whispered. "The moon is too bright."
   
   He padded outside and looked up at the glowing moon. It hung high and round in the sky, shining like a gentle lamp.
   
   "Dear Moon," said Bramble softly, "could you please help me sleep?"
   
   The moon didn't answer with words, but something wonderful happened. A thin cloud drifted across the sky, and the moonlight became softer, like silver milk. It was no longer too bright—it was perfect and peaceful.
   
   Bramble yawned and walked back to his burrow. He snuggled into his bed of leaves once more. The soft moon-glow wrapped around him like a warm blanket.
   
   Within moments, little Bramble was fast asleep, dreaming of forests and starlight.
   
   The end.

   384 tokens in, 247 out · 3.5 s · $0.0016 · 1 message on Pro · answered by anthropic/claude-haiku-4.5 via Azure · September 28, 2026

7. GPT-6 Sol

   Passed: Stated all 3 facts with the section.

   Bramble and the Moonlight
   
   Bramble the hedgehog curled up in his little nest of leaves. He shut his eyes. Then he opened them again.
   
   “The moon is too bright,” he whispered.
   
   Silver light shone through the branches and right onto his nose. Bramble pulled a leaf over his face, but it slipped off. He tucked his head under a fern, but his feet stuck out.
   
   An owl in the tree above heard him rustling. “What are you looking for, Bramble?”
   
   “A darker place to sleep.”
   
   The owl spread one soft wing. “Try looking at the light instead.”
   
   Bramble peeked out. Moonlight made tiny stars on the dew. It lit a path to his nest, where his mother was waiting with an extra armful of leaves.
   
   Together they piled the leaves into a snug roof. A little moonlight still came through.
   
   “That bit can stay,” Bramble murmured. “It helps me see you.”
   
   Soon he was fast asleep.

   362 tokens in, 266 out (55 of them reasoning) · 4.1 s · $0.0017 · 1 message on Pro · answered by openai/gpt-6-sol via OpenAI · September 28, 2026

8. DeepSeek V4 Pro

   Passed: Stated all 3 facts with the section.

   Bramble and the Too-Bright Moon
   
   Bramble the hedgehog curled in his leafy bed. But the moon shone so bright through the branches that his little eyes would not stay shut.
   
   He tried pulling a leaf over his face. Still too bright. He tried turning his back to the moon. Still too bright.
   
   A soft voice said, “Bramble, are you awake?”
   
   It was Mama Hedgehog. She saw him blinking.
   
   “The moon is too bright,” Bramble whispered.
   
   Mama smiled. She fetched a big, soft fern and laid it over Bramble like a blanket. It was cool and dark and smelled like the forest.
   
   “Now the moonbeams can’t reach you,” she said.
   
   Bramble snuggled under the fern. At last the world grew dim and cozy. He could hear the crickets humming.
   
   “Goodnight, Mama,” he murmured.
   
   “Goodnight, my Bramble,” she said.
   
   And Bramble closed his eyes, and the too-bright moon became only a faraway silver light, and he slept.

   363 tokens in, 564 out (346 of them reasoning) · 8.2 s · $0.0025 · 1 message on Pro · answered by deepseek/deepseek-v4-pro-0813 via Wafer · September 28, 2026

9. Kimi K3

   Passed: Stated all 3 facts with the section.

   Bramble and the Bright Moon
   
   Bramble the hedgehog snuggled into his leaf bed. But the moon was too bright, and he could not fall asleep.
   
   "Too bright, too bright," he grumbled.
   
   He pulled a leaf over his eyes. Still too bright. He rolled into a ball. Still too bright.
   
   Then Owl floated down. "Little Bramble, why are you awake?"
   
   "The moon keeps shining on me," Bramble said.
   
   Owl smiled. "Then let us walk in the moonlight together, just for a little while."
   
   So Bramble followed Owl through the soft silver grass. The moon glowed like a night-light, gentle and kind. Bramble's eyes grew heavy. His little feet grew slow.
   
   "Now I am sleepy," he yawned.
   
   Owl tucked him into his leaves. "The moon will watch over you."
   
   Bramble closed his eyes. The bright moon did not bother him anymore. It felt like a hug from the sky.
   
   "Good night, Moon," whispered Bramble. And he slept.

   448 tokens in, 261 out (30 of them reasoning) · 6.1 s · $0.0025 · 1 message on Pro · answered by moonshotai/kimi-k3 via Wafer · September 28, 2026

10. Grok 4.7

    Passed: Stated all 3 facts with the section.

    The Moon Blanket
    Bramble the hedgehog curled up in his grassy nest, but the moon was too bright. Silver light filled his little room. He squeezed his eyes shut. Sleep would not come.
    "Moon," he whispered, "please dim your light."
    The moon only smiled wider.
    Bramble rolled over. He pulled a leaf over his face. The leaf was too thin. He tried counting stars, but they twinkled and made him giggle.
    Then a soft cloud drifted by. "May I help?" the cloud asked.
    "Yes, please," said Bramble.
    The cloud floated in front of the moon like a gentle blanket. The silver light turned soft and gray. The grass grew quiet. Bramble's eyes grew heavy.
    "Thank you," he murmured.
    "Sleep well, little hedgehog," said the cloud.
    Bramble tucked his paws under his chin. The night felt warm and safe. Soon he was fast asleep, and the moon kept watch until morning.

    1,593 tokens in, 301 out (100 of them reasoning) · 4.6 s · $0.0026 · 1 message on Pro · answered by x-ai/grok-4.7 via xAI · September 28, 2026

11. Claude Sonnet 5

    Passed: Stated all 3 facts with the section.

    The Moon That Was Too Bright
    
    Bramble the hedgehog curled up in his cozy burrow, but he could not sleep. A big silver moon shone right through the leaves, and it tickled his eyes.
    
    "Too bright, too bright," Bramble sighed, tucking his nose under his paw. He tried closing his eyes tight. He tried turning around. Still, the moonlight peeked in.
    
    So Bramble tiptoed outside, his little feet soft on the grass. He looked up at the moon, round and glowing like a lamp in the sky.
    
    "Why are you so bright, Moon?" he whispered.
    
    The moon didn't answer, but a warm breeze rustled the leaves, and an owl hooted gently overhead, as if to say hello.
    
    Bramble smiled. He gathered soft leaves and made a cozy blanket over his eyes. Snuggled underneath, the light turned soft and golden.
    
    At last, Bramble's eyes grew heavy, and he drifted off to sleep, safe and warm beneath the gentle moon.

    479 tokens in, 361 out (18 of them reasoning) · 5.4 s · $0.0046 · 1 message on Pro · answered by anthropic/claude-sonnet-5 via Anthropic · September 28, 2026

12. Claude Sonnet 5.5

    Passed: Stated all 3 facts with the section.

    Bramble and the Bright Moon
    
    Bramble the hedgehog curled into a tight, prickly ball beneath the old oak tree. But he could not sleep. The moon was too bright.
    
    "Too shiny," he sighed, and he tried covering his eyes with a leaf.
    
    The wind blew the leaf away.
    
    So Bramble tiptoed to Owl, who sat on a low branch. "Owl, the moon is too bright. What can I do?"
    
    "Hoo," said Owl softly. "Look closely, little one."
    
    Bramble looked up. The moon was round and silver, and its light lay on the grass like a soft blanket. It shone on the sleeping flowers. It shone on the quiet pond.
    
    "It isn't shouting at me," Bramble whispered. "It's watching over us."
    
    "Yes," said Owl. "It keeps the night company."
    
    Bramble padded back to his nest and curled up once more. This time, the moon's glow felt warm and gentle, like a nightlight from a friend.
    
    His eyes grew heavy. His breathing slowed.
    
    "Goodnight, Moon," he yawned.
    
    And Bramble slept until morning.

    481 tokens in, 374 out · 4.0 s · $0.0047 · 1 message on Pro · answered by anthropic/claude-sonnet-5.5 via Anthropic · September 28, 2026

13. Gemini 3.1 Pro

    Passed: Stated all 3 facts with the section.

    The Sleepy Hedgehog and the Moon
    
    Bramble the hedgehog tossed and turned in his nest of dry leaves. He squeezed his little eyes shut, but it was no use. The moon was too bright. It shone like a giant silver lamp right into his bedroom.
    
    "I just want to sleep," Bramble whispered, covering his nose with a crunchy brown oak leaf. A soft breeze puffed the leaf right off his face.
    
    Just then, a gentle owl landed on the branch above. "Why are you awake, little Bramble?" asked the owl.
    
    "The moon is too bright," Bramble said with a big yawn.
    
    "I can help," the owl hummed. He flapped his wide wings and flew up, up, up into the night sky. With his soft feathers, he pushed a fluffy white cloud right in front of the silver moon.
    
    The forest turned dim and cozy.
    
    "Thank you," Bramble mumbled. He curled into a tight, warm ball and fell fast asleep.

    377 tokens in, 905 out (698 of them reasoning) · 8.4 s · $0.0058 · 1 message on Pro · answered by google/gemini-3.1-pro-preview via Google AI Studio · September 28, 2026

14. GPT-6 Astra

    Passed: Stated all 3 facts with the section.

    Bramble’s Little Curtain
    
    Bramble the hedgehog turned over in his bed of leaves.
    
    The moon shone through his window, bright and round.
    
    “Oh, Moon,” he whispered, “I can’t fall asleep. You are too bright.”
    
    He tucked his nose beneath a leaf. But his feet felt cold.
    
    He turned toward the wall. But a moonbeam tickled his ear.
    
    At last, Bramble sat up.
    
    “I need a little curtain.”
    
    Outside his door lay a wide, dry leaf. He carried it inside and hung it across the window with two small twigs.
    
    The moonlight grew soft and green.
    
    Bramble curled into his bed. Then he noticed a beetle by the door, trying to find its way home.
    
    “Wait,” said Bramble.
    
    He lifted one corner of his curtain. A thin silver path stretched across the floor.
    
    The beetle followed it outside.
    
    “Good night,” Bramble murmured.
    
    With the curtain tucked back in place, he closed his eyes and slept.

    362 tokens in, 214 out · 24.7 s · $0.0072 · 1 message on Pro · answered by openai/gpt-6-astra via OpenAI · September 28, 2026

15. Claude Opus 5.5

    Passed: Stated all 3 facts with the section.

    Bramble and the Bright Moon
    
    Bramble the hedgehog curled up in his bed of soft leaves. He shut his eyes tight. But the moon was big and round and very, very bright.
    
    "Moon," said Bramble, "you are shining right on my nose. I cannot sleep!"
    
    He rolled left. He rolled right. He pulled a leaf over his face, but the leaf slid off.
    
    So Bramble tiptoed out to find a darker spot. He peeked under a log. Too damp. He tried behind a stone. Too cold.
    
    Then he looked up. The moon was lighting the path for a little lost mouse, who scurried safely home.
    
    "Oh," whispered Bramble. "You're not keeping me awake. You're keeping everyone safe."
    
    Bramble walked back to his leafy bed. This time, the silver light felt like a warm night-light, just for him.
    
    "Goodnight, Moon," he yawned.
    
    And the moon kept watch while Bramble slept.

    481 tokens in, 375 out (57 of them reasoning) · 6.5 s · $0.0094 · 1 message on Pro · answered by anthropic/claude-opus-5.5 via Google · September 28, 2026

16. Claude Fable 5.1

    Passed: Stated all 3 facts with the section.

    Bramble and the Bright Moon
    
    Bramble the hedgehog curled up in her nest of dry leaves. She closed her eyes. She opened them again.
    
    The moon was shining right through the hedge, big and round and bright as a lantern.
    
    "Moon," said Bramble, "you are too bright. I cannot sleep."
    
    The moon just kept on glowing.
    
    Bramble pulled a leaf over her nose. Too crackly. She rolled over. Too bumpy. She tucked her head under her prickles. Too dark, and she still knew the moon was there.
    
    Then a small grey cloud came floating by.
    
    "Cloud," called Bramble, "could you stop for a moment?"
    
    The cloud drifted slowly in front of the moon, soft and thin, like a blanket over a nightlight.
    
    The garden turned gentle and silver.
    
    "Ah," said Bramble, and she yawned a tiny yawn.
    
    The cloud stayed. The moon glowed quietly behind it.
    
    And Bramble, warm in her leaves, fell fast asleep.

    481 tokens in, 340 out · 6.7 s · $0.0218 · 1 message on Pro · answered by anthropic/claude-fable-5.1 via Google · September 28, 2026

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