AI model · Z.ai
GLM 5.3 Flash
Model ID: z-ai/glm-5.3-flash
- Input
- $0.15 per 1M tokens
- Output
- $0.50 per 1M tokens
- Context
- 1M tokens at once
- Max output
- 944K tokens per reply
- Released
- 26 Aug 2026 Z.ai
What it can do
- YesReasoning
- YesTool calling
- YesImage input
- YesOpen weights
- NoFree to use
Takes text, image, video; gives text.
How its listing describes it
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks.
Sources
- Z.ai: GLM 5.3 Flash on OpenRouter — read 2 Oct 2026