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GLM 5.1

Z.ai released GLM 5.1 on April 3, 2026. The registry currently records it as open weights.

Model publication

zai-org

GLM 5.1Open the source for GLM 5.1

Open weights

GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on a single task for more than 8 hours, autonomously planning, executing, and improving itself throughout the process, ultimately delivering complete, engineering-grade results.

Licence
mit
Architecture
GlmMoeDsaForCausalLM
Parameters
754B
Context
204.8K tokens
Artifact format
safetensors
Quantization
native BF16
Download size
1.4 TB
Figure 1: GLM-5.1
GLM-5.1 (744B) · architecture · Sebastian Raschka · LLM Architecture Gallery

Hardware to run it (inference, estimated)

1.6 TB VRAM minimum · 2.1 TB recommended · 2.1 TB system RAM · 1.4 TB storage

Estimated from parameter count and stored precision; verify against the selected runtime and context length.

Benchmarks

No benchmark observation recorded for this model.

Weightshuggingface.co/zai-org/GLM-5.1Hugging Facehuggingface.coOpenRouteropenrouter.aiSebastian Raschka LLM Architecture Gallerysebastianraschka.com

About the Authors

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