GLM 5.1
GLM-5.1 is a next-generation flagship chat model from Z.ai, built specifically for agentic engineering and complex, long-horizon tasks. It is genuinely best at coding capabilities, achieving state-of-the-art performance on SWE-Bench Pro and leading on NL2Repo and Terminal-Bench 2.0. A notable technical trait is its exceptionally large context window of 202,752 tokens, supporting extended reasoning and iteration.
Input
Output
Context
203K
Max Output
128K
Parameters
753.9B
Technical Specifications
Model TypeChat
Context Window202,752 tokens
Max Output Tokens128,000 tokens
Parameters753.9B
Release DateApr 3, 2026
Training CutoffNot available
Licensemit
Open SourceYes
Input Modalities
Text
Output Modalities
Text
Capabilities
Benchmarks
Artificial Analysis
28.0%
HLE
86.8%
GPQA
43.8%
SciCode
43.4
Coding
40.2
Intelligence
70.8
Speed (tok/s)
54.4
TTFA (s)
0.864
TTFT (s)
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Jun 23, 2026
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