Z.ai: GLM 5.1
Z.ai: GLM 5.1 is a general-purpose chat-tuned model. Available via z-ai. 204,800-token context. Mid-tier pricing.
Z.ai: GLM 5.1 is a efficient AI model from z-ai. It costs $0.966 per million input tokens and $3.036 per million output tokens (blended $1.587/M), with a 204,800-token context window.
0.0%over 91 days · hover to read
- Solid general chat performance
- Reasonable instruction following
- General chat
- Drafting and rewriting
- Personal productivity
Benchmarks
More from z-ai
See all 6 →Price history
2 recorded changes| Date | Rate | Was | Now | Change |
|---|---|---|---|---|
| 21 Jun 2026 | Input | $1.050 | $0.980 | -6.7% |
| 21 Jun 2026 | Output | $3.500 | $3.080 | -12% |
Rates per million tokens, as published by the provider or its router listing. Tracking runs since 3 May; anything earlier is not on record. See every tracked price change.
Frequently asked questions
How much does Z.ai: GLM 5.1 cost?
Z.ai: GLM 5.1 costs $0.966 per million input tokens and $3.036 per million output tokens, for a blended reference rate of $1.587 per million tokens.
What is Z.ai: GLM 5.1's context window?
Z.ai: GLM 5.1 supports up to 204,800 tokens of context in a single request.
What is Z.ai: GLM 5.1 best for?
Z.ai: GLM 5.1 is well suited to Solid general chat performance, Reasonable instruction following and General chat.
Who makes Z.ai: GLM 5.1?
Z.ai: GLM 5.1 is developed and served by z-ai.