# GLM 5.3 Flash: AI model fact sheet

- **Provider:** zhipu
- **Released:** 2026-08-26
- **Context window:** 1,310,720 tokens
- **API pricing:** $0.15 / 1M input, $0.50 / 1M output
- **OpenRouter ID:** z-ai/glm-5.3-flash
- **Capabilities:** conversation, reasoning, code-generation, tool-use

Z.ai multimodal model for efficient coding and long-horizon agent tasks, using hybrid sparse and linear attention. Accepts text, image, and video inputs with a 1,310,720-token context window on OpenRouter.

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/glm-5.3-flash