OpenResponses API now supported on Vercel AI Gateway
Vercel just eliminated vendor lock-in. Switch AI models with a single string parameter.
Why it matters
Vercel AI Gateway's day-one support for OpenAI's OpenResponses spec lowers switching costs between model providers and standardizes multi-provider AI integration—critical infrastructure for startups hedging model risk.
The key facts
11 to knowVercel AI Gateway is day 0 launch partner for OpenResponses API
OpenResponses is OpenAI open-source specification for multi-provider AI interactions
Unified interface supports: text generation, streaming, tool calling, image input, reasoning, provider fallbacks
Model switching via single model string parameter
Supports complex tool calling use cases
Automatic fallback chains across models and providers
OpenResponses is an open-source specification from OpenAI
Unified interface supports: text generation, streaming, tool calling, image input, reasoning
Enables model switching via model string parameter
Supports provider fallback chains for automatic failover
Tool calling, vision input, and extended thinking reasoning all supported
Go to the source
Vercel Blogvercel.com
Publisher excerpt: Vercel AI Gateway is a day 0 launch partner for the OpenResponses API, an open-source specification from OpenAI for multi-provider AI interactions. OpenResponses provides a unified interface for text generation, streaming, tool calling, image input, and reasoning across providers. AI Gateway…