GLM-5.3
Zhipu AI
GLM-5.3 is the most capable open-weights model for coding, with a 50% improvement over GLM-5.2 on our in-house Z.ai Code Bench.
—12d ago
GLM-5.3-Flash
GLM-5.3-Flash is the first native multimodal model in the GLM-5 series, delivering stronger intelligence than GLM-5.2 while maintaining an exceptionally cost-efficient architecture.
Specs
Model
- Family
- GLM
- Variant
- 5.3 Flash
- Parameters
- 320B total, 18B active
- Weights
- Open
- License
- MIT
Limits
- Context
- 1,048,576 tokens
- Max output
- 131,072 tokens
Modalities
- Input
- Text Image Video
- Output
- Text
Pricing
- Input
- $0.075 / 1M
- Output
- $0.25 / 1M
- Cache read
- $0.015 / 1M
Capabilities
- Reasoning
- Yes
- Reasoning control
- Effort levels
- Tool calling
- Yes
- Attachments
- Yes
Dates
- Announced
- 26 Aug 2026
- Released
- 26 Aug 2026
