Z.ai publishes GLM-5.3 at 753B parameters
A large open model with effort controls. Repository created August 25. Mistral names it the leading open-weight model on the Artificial Analysis Coding Agent Index.
Why it matters: It set the open-weight bar for agent coding work that later releases measure against.
- Parameters
- 753B total (HF metadata)
- Active per token
- Not disclosed
- Weights size
- 756 GB (HF repo)
- Context
- Not stated as a spec; evals used up to 1M
- License
- Custom: GLM-5.3 license
| Benchmark | Score | Type | Measured or published by |
|---|---|---|---|
| FrontierSWE | 78.1 | Cited | Z.ai, citing Proximal |
| GDPval-AA v2 | 1769 Elo | Cited | Z.ai, citing Artificial Analysis |
| DeepSWE v1.1 | 66.9 | Self-reported | Z.ai |
| Terminal Bench 3.0 | 28.3 | Self-reported | Z.ai |
Sources: huggingface.co