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VercelRohan Taneja1 min readrelease notesintro

Claude Sonnet 5.5 now available on AI Gateway

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Summary

Claude Sonnet 5.5 is now offered on Vercel AI Gateway as the model identifier anthropic/claude-sonnet-5.5. It adds multi‑step coding assistance, better document generation, zero‑data‑retention, and can be called via the AI SDK, OpenAI‑compatible chat API, or Anthropic messages API.

  • Model identifier is anthropic/claude-sonnet-5.5 and is selectable in Vercel AI Gateway coding agents.
  • Improved coding flow: the model carries changes across steps and self‑checks before reporting completion.
  • Zero Data Retention is enabled for this model on the gateway.
  • Integration example uses the TypeScript AI SDK’s streamText call with a simple prompt.

Anyone building AI‑powered features on Vercel should know the new model’s capabilities and how to hook it into the unified AI Gateway APIs.

4/10
devopsllmapi designtypescriptai

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