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GLM 5.1 Thinking

zai-org/glm-5.1:thinking
BackTry Model
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GLM 5.1 Thinking

zai-org/glm-5.1:thinking
BackTry Model

GLM-5.1 with extended thinking enabled. Ranks #1 in open source and #3 globally across SWE-Bench Pro, Terminal-Bench, and NL2Repo (as of April 2026). Excels at long-horizon tasks, running autonomously for up to 8 hours while refining strategies through thousands of iterations. Run at FP8.

Added Mar 27, 2026

Model weights

Context Window

200.0K

Max Output

131.1K

Avg output tokens (7d)

1.7K tokens

64%

Input Price (Auto)

$0.98/1M

Output Price (Auto)

$3.08/1M

Cache Read (Auto)

$0.18/1M

Capabilities

Benchmarks

Performance metrics and benchmarks

Sourced from Artificial Analysis.

Intelligence Index

41.0

Better than 86% of models compared

Coding Index

55.8

Better than 72% of models compared

Agentic Index

30.6

Better than 70% of models compared

Reasoning

GPQA Diamond

Graduate-level scientific reasoning

86.8%

Better than 85% of models compared

HLE

Humanity's Last Exam

30.1%

Better than 86% 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

68.0%

Better than 75% of models compared

GDPval-AA

Economically valuable tasks

37.9%

CritPt

Research-level physics reasoning

4.6%

Coding

SciCode

Python programming for scientific computing

43.8%

Better than 81% of models compared

Terminal-Bench Hard

Agentic coding and terminal use

43.2%

Better than 90% of models compared

Knowledge

AA-Omniscience Accuracy

Proportion of correctly answered questions

23.7%

AA-Omniscience Hallucination Rate

Rate of incorrect answers among non-correct responses

29.9%

Last updated Aug 16, 2026

Artificial Analysis

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