This model is 14 months old. A newer version of it has since shipped: GLM-5.3-Flash (2026-08-26). The details below are still accurate for this model — it just is not what we would recommend today.
GLM-4.5
Zhipu AI🇨🇳 China
Zhipu's 355B-param MoE (32B active) open-weights flagship unifying reasoning, coding, and agentic ability with a hybrid thinking mode. MIT-licensed alongside the lighter GLM-4.5-Air.
Context window128K tokens
Input / 1M tokens$0.6
Output / 1M tokens$2.2
Version History
glm-4-5-launchmajor
GLM-4.5 launches. Zhipu's 355B-param MoE (32B active) open-weights flagship unifying reasoning, coding, and agentic ability with a hybrid thinking mode. MIT-licensed alongside the lighter GLM-4.5-Air.
Benchmark Scores
Full leaderboard →91.0%
AIME 2024
1411.0 elo
Arena Elo
79.1%
GPQA
67.2%
Hallucination Rate
72.9%
LiveCodeBench
84.6%
MMLU-Pro
64.2%
SWE-bench Verified