Claude Sonnet 5.5 now available on AI Gateway
Claude Sonnet 5.5 from Anthropic is now available on Vercel's AI Gateway as anthropic/claude-sonnet-5.5. The new model improves coding task performance with better multi-step reasoning, enhanced document creation, and supports zero data retention across multiple API formats.
from is now available on as .Claude Sonnet 5.5AnthropicAI Gatewayanthropic/claude-sonnet-5.5
Sonnet 5.5 improves on for well-scoped everyday work, from building features and fixing bugs to creating documents, slides, and spreadsheets.Claude Sonnet 5
On coding tasks, Sonnet 5.5 carries changes through multiple steps and checks its work before reporting completion. It produces more polished documents, slides, and spreadsheets with fewer follow-up edits, and writes clearer explanations and reports. It also improves at using desktop apps and reading charts and technical drawings.
Sonnet 5.5 supports on AI Gateway.Zero Data Retention
Use Sonnet 5.5 with the , , , or . You can also select it in a connected to AI Gateway.AI SDKOpenAI-compatible Chat Completions APIResponses APIAnthropic Messages APIcoding agent
For coding agents, run and select in your agent's model settings.npx vercel ai-gateway setupanthropic/claude-sonnet-5.5
Try Sonnet 5.5 in the , or explore the .AI Gateway model playgroundmodel catalog
AI Gateway provides one API for calling models, tracking usage and cost, and configuring routing, retries, and failover. You can use an or .AI Gateway API keybring your own provider key
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