GLM 5.3 Flash now available on AI Gateway
GLM 5.3 Flash lands on Vercel's AI Gateway: 1M-token multimodal coding model, ready for agents.

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.
The key facts
13 to knowGLM 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
Go to the source
Vercel Blogvercel.com
Publisher excerpt: 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…