ToolsAugust 26, 2026via Vercel Blog
GLM 5.3 Flash now available on AI Gateway
Why it matters
A capable frontier model (GLM 5.3 Flash) is now accessible via a major dev platform's API layer. Practitioners building with agents or multimodal code tasks get a new option; the 1M context window and native function calling lower friction for coding workflows.
Key signals
- GLM 5.3 Flash available on Vercel AI Gateway
- 1M-token context window
- Multimodal: text and image inputs
- Supports function calling, structured output, streaming
- Agent-native (integrates with Vercel AI coding agents)
- Access via zai/glm-5.3-flash
- Model playground + docs available
- GLM 5.3 Flash available via Vercel AI Gateway
- Multimodal (text + image inputs)
- Supports function calling and structured output
- Native coding-agent integration
- Images via URLs, Base64, or binary data
- Model playground for testing included
The hook
GLM 5.3 Flash lands on Vercel's AI Gateway: 1M-token multimodal coding model, ready for agents.
is now available on AI Gateway as .GLM 5.3 Flash from Z.aizai/glm-5.3-flash
GLM 5.3 Flash is a multimodal coding model with a 1M-token context window. It accepts both text and image inputs and supports function calling, structured output, and streaming.
To include images, pass them with text in a me…