GLM 5.1

About this model

ZAI GLM 5.1 is a 744B parameter Mixture-of-Experts language model built with the GLM‑MoE DSA architecture. It excels at agentic engineering, achieving state-of-the-art performance on benchmarks such as HLE with tools (52.3), SWE‑Bench Pro (58.4) and AIME 2026 (95.3). The model supports extensive tool use and long‑horizon reasoning, with a large context window of up to 128K tokens. It is released under the MIT license.

Technical specifications

Capabilities

Input modalities

Output modalities

Reasoning

Hybrid Default on

Knowledge horizon