- Context (input / output)
- 1.05M / 131K
- Parameters
- 744B / 40B active
- Release date
- 2026-08
- Input modalities
- Text
- Output modalities
- Text
- Exact release date
- 2026-08-14
- Base model
- Same as GLM-5.2 (all gains come from post-training)
- Architecture
- MoE (256 experts), DSA, IndexShare
- Availability
- GLM Coding Plan, ZCode, and API
- Reasoning mode
- Thinking only (supports low / high / max)
- Weight status
- Open weights planned for August 28, 2026, after safety evaluation and hardening
- Evaluation source
- Official 16-row comparison table, split into 17 metrics and 120 scores
- API model ID
- glm-5.3
- Default reasoning effort
- max (supports low / high / max)