Z.ai
GLM-5.1Open Weight
GLM-5.1 is an AI model released by Z.ai on Apr 7 2026, 54 days after GLM-5. It is an open-weight model — the trained weights are available to download and run. Benchmark results (shown below) cover Terminal-Bench 2.0, BrowseComp, and GPQA Diamond.
Parameters
744B
Context window
200k
Benchmarks
Agentic terminal coding
Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better.
63.5%
Web browsing
BrowseCompCan the AI browse the web and track down hard-to-find answers? Higher is better.
68%
Science
GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better.
86.2%