GLM-5.1 is Z.AI's next-gen model optimized for long-horizon agent workflows and deep reasoning. Running inside a TEE (Trusted Execution Environment), with provider attestation support.
Added Apr 20, 2026
Model weightsContext Window
202.8K
Max Output
65.5K
Input Price (Auto)
$1.57/1M
Output Price (Auto)
$5.51/1M
Cache Read (Auto)
$0.31/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
40.2
Coding Index
55.8
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
86.8%
Better than 91% of models compared
HLE
Humanity's Last Exam
28.0%
Better than 91% of models compared
IFBench
Instruction-following benchmark
76.3%
Better than 95% of models compared
T²-Bench Telecom
Conversational AI agents in dual-control scenarios
97.7%
Better than 98% of models compared
AA-LCR
Long context reasoning evaluation
62.3%
Better than 79% of models compared
Coding
SciCode
Python programming for scientific computing
43.8%
Better than 88% of models compared
Terminal-Bench Hard
Agentic coding and terminal use
43.2%
Better than 92% of models compared
Last updated Jun 28, 2026
Artificial AnalysisProviders
Choose explicit providers for this model. Auto routing remains available as the default option.
Loading provider options…
Related text models
Compare GLM 5.1 TEE with similar models from the same provider or model family.
GLM 5.2 TEE
TEE/glm-5.2GLM-5.2 is Z.AI's flagship model for long-horizon tasks and autonomous workflows, with a 1M-token context window. Running inside a TEE (Trusted Execution Environment), with attestation support.
GLM 5.2 Thinking TEE
TEE/glm-5.2:thinkingGLM-5.2 with thinking enabled for harder long-horizon coding, autonomous agent workflows, and complex engineering tasks. Running inside a TEE (Trusted Execution Environment), with attestation support.
GLM 5.1 Thinking TEE
TEE/glm-5.1-thinkingGLM-5.1 with extended reasoning mode for multi-step planning and tool-heavy workflows. Running inside a TEE (Trusted Execution Environment), with provider attestation support.
GLM 4.7 TEE
TEE/glm-4.7GLM-4.7 is a next-gen GLM series text model with stronger reasoning, long-context chat, and reliable tool use. Running inside a TEE (Trusted Execution Environment), with provider attestation support.
GLM 5.3 Preview
zai-org/glm-5.3A preview of GLM-5.3 for long-horizon autonomous coding and engineering workflows. This variant defaults to the model's low reasoning tier for faster responses. While in preview, prompts and responses may be logged and used for training.
GLM 5.3 Preview Thinking
zai-org/glm-5.3:thinkingThe GLM-5.3 preview with higher reasoning enabled for harder long-horizon coding, autonomous agent workflows, and complex engineering tasks. While in preview, prompts and responses may be logged and used for training.