Comparison
Claude vs GLM
On llmwise Pro, Claude Sonnet 5 up to 125 messages a month and GLM 5.3 up to 250. We ran the same 50 prompts across 10 jobs on every Claude and GLM model and published every reply: each family's pick against the other's job by job, the prompts where they split, then their plans and how the lineups differ.
Based on 300 of our test runs on , through OpenRouter with the app's own prompt and settings. Updated .
Short answer
In our test runs on September 27, 2026, the same 50 prompts across 10 jobs: Claude's 4 models passed 183 of 200 replies and GLM's 2 models passed 88 of 100 replies. Job by job, both families' best models shared the top result on 9 of the 10 jobs; Claude's alone had it on summarization.
Claude vs GLM, job by job
On each job, Claude's pick against GLM's: the model of each family that passed the most of the job's 5 prompts (then the most hard ones, then the cheaper). The jobs where they differ most come first.
Summarization: Claude Haiku 4.5 passed 5 of 5 and GLM 5.3 4 of 5. GLM 5.3 answered 1.5× sooner at the median, 1.7 s against 1.1 s. GLM 5.3 cost 1.9× less, $0.0051 against $0.0027 for the 5 replies. Their replies ran to about the same length.
Coding: Claude Sonnet 5 passed 5 of 5 and GLM 5.3 Flash 5 of 5. Claude Sonnet 5 answered 3.1× sooner at the median, 2.7 s against 8.4 s. GLM 5.3 Flash cost 40.2× less, $0.0508 against $0.0013 for the 5 replies. Claude Sonnet 5's replies ran 73% longer, in tokens of reply, thinking not counted.
Writing: Claude Sonnet 5 passed 4 of 5 and GLM 5.3 4 of 5. GLM 5.3 answered 2.5× sooner at the median, 4.5 s against 1.8 s. GLM 5.3 cost 5.9× less, $0.0171 against $0.0029 for the 5 replies. Claude Sonnet 5's replies ran 70% longer, in tokens of reply, thinking not counted.
Math: Claude Haiku 4.5 passed 5 of 5 and GLM 5.3 Flash 5 of 5. Claude Haiku 4.5 answered 1.2× sooner at the median, 2.2 s against 2.7 s. GLM 5.3 Flash cost 10.2× less, $0.0077 against $0.0008 for the 5 replies. Claude Haiku 4.5's replies ran 135% longer, in tokens of reply, thinking not counted.
Data analysis: Claude Opus 5.5 passed 5 of 5 and GLM 5.3 5 of 5. GLM 5.3 answered 2.4× sooner at the median, 4.6 s against 1.9 s. GLM 5.3 cost 6.8× less, $0.0654 against $0.0096 for the 5 replies. Claude Opus 5.5's replies ran 44% longer, in tokens of reply, thinking not counted.
Customer support: Claude Sonnet 5 passed 5 of 5 and GLM 5.3 5 of 5. GLM 5.3 answered 1.5× sooner at the median, 3.5 s against 2.3 s. GLM 5.3 cost 7.8× less, $0.0182 against $0.0023 for the 5 replies. Claude Sonnet 5's replies ran 62% longer, in tokens of reply, thinking not counted.
Translation: Claude Haiku 4.5 passed 5 of 5 and GLM 5.3 Flash 5 of 5. Claude Haiku 4.5 answered 2.2× sooner at the median, 1.8 s against 4.1 s. GLM 5.3 Flash cost 15.0× less, $0.0074 against $0.0005 for the 5 replies. Claude Haiku 4.5's replies ran 81% longer, in tokens of reply, thinking not counted.
SQL: Claude Haiku 4.5 passed 5 of 5 and GLM 5.3 Flash 5 of 5. Claude Haiku 4.5 answered 1.2× sooner at the median, 1.2 s against 1.4 s. GLM 5.3 Flash cost 7.6× less, $0.0049 against $0.0006 for the 5 replies. Claude Haiku 4.5's replies ran 30% longer, in tokens of reply, thinking not counted.
RAG and answering from documents: Claude Haiku 4.5 passed 5 of 5 and GLM 5.3 Flash 5 of 5. Claude Haiku 4.5 answered 1.9× sooner at the median, 1.2 s against 2.2 s. GLM 5.3 Flash cost 6.6× less, $0.0050 against $0.0008 for the 5 replies. Claude Haiku 4.5's replies ran 23% longer, in tokens of reply, thinking not counted.
Agents and tool use: Claude Haiku 4.5 passed 5 of 5 and GLM 5.3 5 of 5. GLM 5.3 answered 1.3× sooner at the median, 1.1 s against 0.9 s. GLM 5.3 cost 2.1× less, $0.0047 against $0.0022 for the 5 replies. Claude Haiku 4.5's replies ran 87% longer, in tokens of reply, thinking not counted.
The 3 prompts only one of Claude and GLM passed
Where one family's pick passed a prompt and the other's didn't, in each check's own words.
An article in three bullets (summarization): Claude Haiku 4.5 passed and GLM 5.3 didn't. Claude Haiku 4.5: Graded 4.0 of 5 on average (lowest 3). GLM 5.3: Graded 4.3 of 5 on average (lowest 3); but 68 words, over the 60 allowed.
Announce a second bakery shop on LinkedIn (writing): GLM 5.3 passed and Claude Sonnet 5 didn't. Claude Sonnet 5: Graded 3.5 of 5 on average (lowest 3). GLM 5.3: Graded 4.3 of 5 on average (lowest 4).
Argue both sides of free buses (writing): Claude Sonnet 5 passed and GLM 5.3 didn't. Claude Sonnet 5: Graded 4.0 of 5 on average (lowest 4). GLM 5.3: Graded 3.7 of 5 on average (lowest 3); but a paragraph of 92 words, over the 90 allowed.
Each Claude model against each GLM model
Every Claude model against every GLM model on the same 50 prompts: each one's passes, how many prompts split them, and who was cheaper and quicker.
Claude Fable 5.1 vs GLM 5.3: 45 and 48 of 50; 3 prompts split them; GLM 5.3's replies cost 27.5× less in all, and GLM 5.3 answered sooner on 50, Claude Fable 5.1 on 0.
Claude Fable 5.1 vs GLM 5.3 Flash: 45 and 40 of 50; 7 prompts split them; GLM 5.3 Flash's replies cost 104.0× less in all, and GLM 5.3 Flash answered sooner on 29, Claude Fable 5.1 on 16.
Claude Opus 5.5 vs GLM 5.3: 49 and 48 of 50; one prompt split them; GLM 5.3's replies cost 14.7× less in all, and GLM 5.3 answered sooner on 50, Claude Opus 5.5 on 0.
Claude Opus 5.5 vs GLM 5.3 Flash: 49 and 40 of 50; 9 prompts split them; GLM 5.3 Flash's replies cost 55.6× less in all, and GLM 5.3 Flash answered sooner on 26, Claude Opus 5.5 on 17.
Claude Sonnet 5 vs GLM 5.3: 46 and 48 of 50; 4 prompts split them; GLM 5.3's replies cost 5.6× less in all, and GLM 5.3 answered sooner on 47, Claude Sonnet 5 on 1. Claude Sonnet 5 vs GLM 5.3.
Claude Sonnet 5 vs GLM 5.3 Flash: 46 and 40 of 50; 8 prompts split them; GLM 5.3 Flash's replies cost 21.1× less in all, and Claude Sonnet 5 answered sooner on 33, GLM 5.3 Flash on 14.
Claude Haiku 4.5 vs GLM 5.3: 43 and 48 of 50; 9 prompts split them; GLM 5.3's replies cost 2.0× less in all, and GLM 5.3 answered sooner on 35, Claude Haiku 4.5 on 10. Claude Haiku 4.5 vs GLM 5.3.
Claude Haiku 4.5 vs GLM 5.3 Flash: 43 and 40 of 50; 11 prompts split them; GLM 5.3 Flash's replies cost 7.7× less in all, and Claude Haiku 4.5 answered sooner on 41, GLM 5.3 Flash on 6. Claude Haiku 4.5 vs GLM 5.3 Flash.
One summarization prompt, both replies
Claude Haiku 4.5 and GLM 5.3 on a summarization prompt, the job where they differed most: both replies as they came.
An everyday prompt: “An article in three bullets”, in full.
Claude Haiku 4.5
Passed: Graded 4.0 of 5 on average (lowest 3).
• **Bike usage tripled** (900 to 2,300 daily trips); cyclist injuries dropped from 9 to 2 during six-month trial. • **Mixed business impact**: 27 of 60 surveyed shops gained customers; 19 lost customers; car travel times increased ~1 minute. • **Council votes November** on permanent lanes costing €1.1 million after €410,000 installation trial.
561 tokens in, 102 out · 1.8 s · $0.0011 · 1 message on Pro · answered by anthropic/claude-haiku-4.5 via Amazon Bedrock ·
GLM 5.3
Failed: Graded 4.3 of 5 on average (lowest 3); but 68 words, over the 60 allowed.
- Aldmoor ended its six-month protected bike lane trial on Market Street; the council votes in November on making them permanent. - Daily bike trips rose from about 900 to 2,300, cyclist injuries fell from nine to two, and car traffic dropped 14%, though rush-hour drives got slightly longer. - Businesses are split (27 reported more customers, 19 fewer), and permanence would cost an extra €1.1 million beyond the €410,000 spent.
539 tokens in, 218 out (118 of them reasoning) · 2.8 s · $0.0004 · 1 message on Pro · answered by z-ai/glm-5.3 via Morph ·
Every model, every job
All 6 Claude and GLM models in llmwise across the 50 prompts, with what a reply cost to run and each model's count on Pro.
| Model | Passed | Hard ones | Cost per reply | On Pro |
|---|---|---|---|---|
| Claude Fable 5.1Anthropic | 45 of 50 | 17 of 20 | $0.0200 | Up to 31 a month |
| Claude Opus 5.5Anthropic | 49 of 50 | 19 of 20 | $0.0107 | Up to 62 a month |
| Claude Sonnet 5Anthropic | 46 of 50 | 19 of 20 | $0.0041 | Up to 125 a month |
| Claude Haiku 4.5Anthropic | 43 of 50 | 15 of 20 | $0.0015 | Up to 250 a month |
| GLM 5.3Z.ai | 48 of 50 | 19 of 20 | $0.00073 | Up to 250 a month |
| GLM 5.3 FlashZ.ai | 40 of 50 | 16 of 20 | $0.00019 | Up to 60 a day |
Passed: replies that passed their check, of those scored. Cost: what OpenRouter charged us per reply, on average; in llmwise you pay per message, not per token. Every prompt and how it's scored.
Every limit is published. Paid plans also have a monthly fair-use limit on AI cost: Pro $7.50, Max $20, Ultra $42, Studio $85. Using every message on your plan at typical sizes stays under it; very large messages and heavy research use it faster. Every limit, explained.
Its own subscription
The one company here with its own plan at about llmwise Pro's price ($20 a month), in its own words, dated. We drop a plan here when its facts are more than 45 days old.
Claude Pro (Anthropic), $20 a month
Models it names: Claude Opus, Claude Sonnet, and Claude Haiku. On its limits: “The number of messages you can send will vary based on message length, including the length of files you attach, the length of your current conversation, and the model or feature you use. Your session-based usage limit will reset every five hours.” Claude Pro vs llmwise.
Sources: Claude Help Center: What is the Pro plan?, Claude Help Center: Claude Fable models on your plan and Claude pricing, checked .
llmwise Pro, $20 a month, has all 6 of these models in one chat, from one monthly allowance: Claude Sonnet 5 up to 125 messages a month and GLM 5.3 up to 250.
The lineups at a glance
What follows from each model's facts in our catalog.
The lineups
Claude: 4 models, Claude Fable 5.1, Claude Opus 5.5, Claude Sonnet 5, and Claude Haiku 4.5. GLM: 2 models, GLM 5.3 and GLM 5.3 Flash.
Price per message
The least expensive Claude model is Claude Haiku 4.5 (250 messages a month on Pro); the least expensive GLM model is GLM 5.3 Flash (60 messages a day on Pro).
Context window
Claude goes up to 1M tokens (Claude Fable 5.1); GLM up to 1.05M tokens (GLM 5.3).
Images and PDFs
GLM 5.3 doesn't read images. GLM 5.3 and GLM 5.3 Flash get a PDF's text rather than the file itself.
On the Free plan
Free's one-time trial of 5 messages covers Claude Sonnet 5, Claude Haiku 4.5, GLM 5.3, and GLM 5.3 Flash. Paid plans have every model, with messages every month.
Model by model
Two named models side by side, prompt by prompt, each with its messages on every plan.
More head-to-heads
Each of Claude and GLM against the other families, every job from the same test runs.
Where your messages go
In llmwise, a message to Claude goes to its maker, Anthropic, or through OpenRouter when llmwise can't reach the maker directly. GLM models are served only through OpenRouter, by endpoints that don't store or train on prompts. The Privacy Policy has the details.
Questions
Which is better, Claude or GLM?
In our test runs on September 27, 2026, the same 50 prompts across 10 jobs: Claude's 4 models passed 183 of 200 replies and GLM's 2 models passed 88 of 100 replies. Job by job, both families' best models shared the top result on 9 of the 10 jobs; Claude's alone had it on summarization.
Which is cheaper, Claude or GLM?
In llmwise, the least expensive Claude model is Claude Haiku 4.5 (250 messages a month on Pro), and the least expensive GLM model is GLM 5.3 Flash (60 messages a day on Pro). At API list prices (September 2026), a typical message of 4,000 tokens in and 700 out costs $0.0075 on Claude Haiku 4.5 and $0.0010 on GLM 5.3 Flash.
Can I use Claude and GLM in the same chat?
Yes. Pick a model for each message; when you switch, the next model sees the whole conversation, including the other one's answers.
Claude, GPT, Gemini, DeepSeek, Grok, Kimi, and GLM, in one chat.
See what a message costs before you send it. Free is 5 messages to try; sign in with an email link, no password or card.