You can now access OpenAI's latest models, GPT-5.1 Instant and GPT-5.1 Thinking, using Vercel's AI Gateway with no other provider accounts required. 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. To use these models with the AI SDK , set the model to openai/gpt-5.1-instant or openai/gpt-5.1-thinking : import { streamText } from 'ai' const result = streamText ( { model : "openai/gpt-5.1-instant" , prompt : "What are the benefits to adaptive reasoning?" } ) 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 observability , Bring Your Own Key support , and intelligent provider routing with automatic retries.…