Z.ai
GLM 5.1
GLM-5.1 is the next-gen LLM from Z.ai with enhanced reasoning, improved instruction following, and multi-language support.
glm-5.1Pricing
~99%- Input
- $0.01444 / 1,000,000 tokens
- Output
- $0.045382 / 1,000,000 tokens
- Cache read
- $0.002682 / 1,000,000 tokens
- Cache write
- $0.01444 / 1,000,000 tokens
Discount history
Model details
- Input
- text
- Output
- text
- Context window
- 200,000 tokens
- Maximum output
- 24,000 tokens
- Availability
- $11.5KUncapped capacity
- Updated
- 11/8/2026, 3:58:06 AM UTC
Capacity is reserved when your request is accepted.
Capabilities
ChatStreamingReasoningTool calling
Supported parameters
frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_ppresence_penaltyreasoningrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_p