GLM-5.1
Zhipu AI (Z.ai) · 2026-04-07 · 753.9B parameters
GLM-5.1 is Z.ai's April 7, 2026 open-weight flagship model for agentic engineering, emphasizing coding, long-horizon planning, sustained optimization, and tool use. Its text-only MIT-licensed checkpoint contains exactly 753,864,119,552 model-weight parameters and uses a 78-layer sparse-MoE architecture with DSA over MLA, chat-template-selectable thinking, and a configured 202,752-token maximum context.