Z.ai, released 2026-02-11. Sparse MoE decoder, 744B total, 40B active, 198K context. Attention: MLA with DeepSeek Sparse Attention.
Sparse MoEZ.ai 🇨🇳 · April 7, 2026
GLM-5.1 (744B)
Post-trained GLM refresh that keeps the GLM-5 backbone intact but targets stronger long-horizon agentic coding.
Key detail
Architecture stays aligned with GLM-5, including its MTP-capable backbone; the main shift is post-training.Total params
744B
Active / token
40B
Context
198K
Fact sheet
- Scale
- 744B total, 40B active (5.4% active)
- Context window
- 202,752 tokens
- Decoder type
- Sparse MoE
- Attention
- MLA with DeepSeek Sparse Attention
- Layer mix
- 78 MLA
- KV cache / token (bf16)
- 87.8 KiB · Moderate
- License
- MIT License
- Released
Efficiency
Parameters active per token
5.4%
40B of 744B weights run for each token.
AA Intelligence Index v4.3.2
Source26.1
- General
- 34.7
- Scientific
- 17.3
- Coding
- 23.4
- Agents
- 25.3
Architecture concepts
Sources & resources
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