Comparison
Grok vs GLM
In our test runs on October 2, 2026, the same 50 prompts across 10 jobs: Grok's one model passed 47 of 50 replies and GLM's 2 models passed 88 of 100 replies. On llmwise Pro, Grok 4.7 up to 250 messages a month and GLM 5.3 up to 250.
Based on 150 of our test runs on , through OpenRouter with the app's own prompt and settings. Updated .
Short answer
Job by job, both families' best models shared the top result on 7 of the 10 jobs; Grok's alone had it on summarization; GLM's alone had it on writing and customer support.
Grok vs GLM, job by job
On each job, Grok'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.
Writing: Grok 4.7 passed 3 of 5 and GLM 5.3 4 of 5. GLM 5.3 answered 3.4× sooner at the median, 6.0 s against 1.8 s. GLM 5.3 cost 10.0× less, $0.0288 against $0.0029 for the 5 replies. GLM 5.3's replies ran 16% longer, in tokens of reply, thinking not counted.
Summarization: Grok 4.7 passed 5 of 5 and GLM 5.3 4 of 5. GLM 5.3 answered 2.5× sooner at the median, 2.8 s against 1.1 s. GLM 5.3 cost 5.2× less, $0.0141 against $0.0027 for the 5 replies. GLM 5.3's replies ran 11% longer, in tokens of reply, thinking not counted.
Customer support: Grok 4.7 passed 4 of 5 and GLM 5.3 5 of 5. GLM 5.3 answered 5.0× sooner at the median, 11.6 s against 2.3 s. GLM 5.3 cost 13.2× less, $0.0306 against $0.0023 for the 5 replies. GLM 5.3's replies ran 23% longer, in tokens of reply, thinking not counted.
Coding: Grok 4.7 passed 5 of 5 and GLM 5.3 Flash 5 of 5. GLM 5.3 Flash answered 3.8× sooner at the median, 31.6 s against 8.4 s. GLM 5.3 Flash cost 97.2× less, $0.1229 against $0.0013 for the 5 replies. Their replies ran to about the same length.
Math: Grok 4.7 passed 5 of 5 and GLM 5.3 Flash 5 of 5. GLM 5.3 Flash answered 4.3× sooner at the median, 11.7 s against 2.7 s. GLM 5.3 Flash cost 48.1× less, $0.0362 against $0.0008 for the 5 replies. Grok 4.7's replies ran 36% longer, in tokens of reply, thinking not counted.
Data analysis: Grok 4.7 passed 5 of 5 and GLM 5.3 5 of 5. GLM 5.3 answered 4.6× sooner at the median, 8.9 s against 1.9 s. GLM 5.3 cost 5.8× less, $0.0556 against $0.0096 for the 5 replies. GLM 5.3's replies ran 20% longer, in tokens of reply, thinking not counted.
Translation: Grok 4.7 passed 5 of 5 and GLM 5.3 Flash 5 of 5. GLM 5.3 Flash answered 2.6× sooner at the median, 10.7 s against 4.1 s. GLM 5.3 Flash cost 83.0× less, $0.0410 against $0.0005 for the 5 replies. GLM 5.3 Flash's replies ran 22% longer, in tokens of reply, thinking not counted.
SQL: Grok 4.7 passed 5 of 5 and GLM 5.3 Flash 5 of 5. GLM 5.3 Flash answered 2.1× sooner at the median, 3.0 s against 1.4 s. GLM 5.3 Flash cost 37.1× less, $0.0240 against $0.0006 for the 5 replies. Their replies ran to about the same length.
RAG and answering from documents: Grok 4.7 passed 5 of 5 and GLM 5.3 Flash 5 of 5. Grok 4.7 answered 1.2× sooner at the median, 1.9 s against 2.2 s. GLM 5.3 Flash cost 19.0× less, $0.0146 against $0.0008 for the 5 replies. GLM 5.3 Flash's replies ran 136% longer, in tokens of reply, thinking not counted.
Agents and tool use: Grok 4.7 passed 5 of 5 and GLM 5.3 5 of 5. GLM 5.3 answered 5.8× sooner at the median, 5.2 s against 0.9 s. GLM 5.3 cost 8.9× less, $0.0197 against $0.0022 for the 5 replies. Their replies ran to about the same length.
The 3 prompts only one of Grok and GLM passed
Where one family's pick passed a prompt and the other's didn't, in each check's own words.
Rewrite corporate jargon in plain words (writing): GLM 5.3 passed and Grok 4.7 didn't. Grok 4.7: Graded 3.7 of 5 on average (lowest 3). GLM 5.3: Graded 4.0 of 5 on average (lowest 3).
An article in three bullets (summarization): Grok 4.7 passed and GLM 5.3 didn't. Grok 4.7: Graded 4.7 of 5 on average (lowest 4). GLM 5.3: Graded 4.3 of 5 on average (lowest 3); but 68 words, over the 60 allowed.
A frustrated customer (customer support): GLM 5.3 passed and Grok 4.7 didn't. Grok 4.7: Graded 3.7 of 5 on average (lowest 3). GLM 5.3: Graded 4.7 of 5 on average (lowest 4).
Each Grok model against each GLM model
Every Grok 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.
Grok 4.7 vs GLM 5.3: 47 and 48 of 50; 3 prompts split them; GLM 5.3's replies cost 10.6× less in all, and GLM 5.3 answered sooner on 49, Grok 4.7 on 0. Grok 4.7 vs GLM 5.3.
Grok 4.7 vs GLM 5.3 Flash: 47 and 40 of 50; 7 prompts split them; GLM 5.3 Flash's replies cost 40.2× less in all, and GLM 5.3 Flash answered sooner on 32, Grok 4.7 on 16. Grok 4.7 vs GLM 5.3 Flash.
One writing prompt, both replies
Grok 4.7 and GLM 5.3 on a writing prompt, the job where they differed most: both replies as they came.
An everyday prompt: “Rewrite corporate jargon in plain words”, in full.
Grok 4.7
Failed: Graded 3.7 of 5 on average (lowest 3).
In the third quarter, teams from different parts of the company worked together to put a customer-focused approach into practice. Retention measures rose 12%, and the rate of customer loss fell by 30 basis points among enterprise customers. Contact points across all channels were also resized to use capacity more efficiently.
1,658 tokens in, 1,603 out (1,543 of them reasoning) · 20.0 s · $0.0112 · 1 message on Pro · answered by x-ai/grok-4.7 via xAI ·
GLM 5.3
Passed: Graded 4.0 of 5 on average (lowest 3).
In Q3, our teams worked together to make the business more customer-focused. As a result, customer retention rose 12%, and churn in our enterprise segment fell by 0.3 percentage points. We also adjusted our customer service channels to use our resources more efficiently.
434 tokens in, 98 out (41 of them reasoning) · 1.8 s · $0.0002 · 1 message on Pro · answered by z-ai/glm-5.3 via Baidu ·
Every model, every job
All 3 Grok 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 |
|---|---|---|---|---|
| Grok 4.7xAI | 47 of 50 | 19 of 20 | $0.0077 | 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: Plus $3.75, 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.
SuperGrok (SpaceXAI), $30 a month
Models it names: Grok 4.6. On its limits: “Smarter answers in Expert mode: Access our best model with higher limits” SuperGrok vs llmwise.
Checked : Grok plans.
llmwise Pro, $20 a month, has all 3 of these models in one chat, on one monthly allowance. On it: Grok 4.7 up to 250 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
Grok: one model, Grok 4.7. GLM: 2 models, GLM 5.3 and GLM 5.3 Flash.
Price per message
Grok's one model is Grok 4.7 (250 messages a month on Pro); the least expensive GLM model is GLM 5.3 Flash (60 messages a day on Pro).
Context window
Grok goes up to 500K tokens (Grok 4.7); 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
None of these models is on the Free plan. Paid plans have them all, 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 Grok and GLM against the other families, every job from the same test runs.
Where your messages go
Grok and 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, Grok or GLM?
In our test runs on October 2, 2026, the same 50 prompts across 10 jobs: Grok's one model passed 47 of 50 replies and GLM's 2 models passed 88 of 100 replies. Job by job, both families' best models shared the top result on 7 of the 10 jobs; Grok's alone had it on summarization; GLM's alone had it on writing and customer support.
Which is cheaper, Grok or GLM?
In llmwise, the least expensive Grok model is Grok 4.7 (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 (October 2026), a typical message of 4,000 tokens in and 700 out costs $0.0122 on Grok 4.7 and $0.0010 on GLM 5.3 Flash.
Can I use Grok 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, GLM, and Mistral, 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.