You can now access OpenAI's latest models, GPT-5.1 Instant and GPT-5.1 Thinking, using Vercel's with no other provider accounts required.AI Gateway To use these models with the , set the model to or :AI SDKopenai/gpt-5.1-instantopenai/gpt-5.1-thinking AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in , , and intelligent with automatic retries.observabilityBring Your Own Key supportprovider routing Learn more about , view the or try it in our .AI GatewayAI Gateway model leaderboardmodel playground Read more GPT-5.1 Instant offers improved instruction following, adaptive reasoning, and warmer, more conversational responses.

GPT-5.1 Thinking builds on GPT-5 Thinking with dynamic performance tuning that prioritizes speed for simple tasks and deeper reasoning for complex ones.