AI BriefingGLM 5.3 Now Available on AI Gateway
Key point
Z.ai's **GLM 5.3** has been added to Vercel's **AI Gateway**, enhancing performance in software engineering and agentic tasks.
Details
Z.ai's GLM 5.3 has been newly added to Vercel's AI Gateway. Compared to its predecessor, GLM 5.2, this model demonstrates improved performance in complex software engineering and multi-step agentic tasks, while showing efficiency by generating fewer output tokens for the same level of work.
Security performance has also been strengthened. According to DeepsecBench results, GLM 5.3 exhibits enhanced capabilities in discovering security vulnerabilities in application code and reasoning through consecutive steps of attack chains.
Key technical specifications and features include:
- Support for a 1M token context window and up to 128K token output
- Support for Function calling, Structured output, Streaming, and Context caching
- Model invocation available via the
zai/glm-5.3slug
Users can integrate it with various coding agents such as Claude Code, Cursor, and OpenCode. AI Gateway provides model invocation, usage and cost tracking, and retry and failover configuration through a unified API, reflecting providers' prices directly without additional platform fees.
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