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OpenResponses API now supported on Vercel AI Gateway

Vercel just eliminated vendor lock-in. Switch AI models with a single string parameter.

Reporting by Vercel Blog 1 min brief
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The KeyNews take

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 know

  1. Vercel AI Gateway is day 0 launch partner for OpenResponses API

  2. OpenResponses is OpenAI open-source specification for multi-provider AI interactions

  3. Unified interface supports: text generation, streaming, tool calling, image input, reasoning, provider fallbacks

  4. Model switching via single model string parameter

  5. Supports complex tool calling use cases

  6. Automatic fallback chains across models and providers

  7. OpenResponses is an open-source specification from OpenAI

  8. Unified interface supports: text generation, streaming, tool calling, image input, reasoning

  9. Enables model switching via model string parameter

  10. Supports provider fallback chains for automatic failover

  11. 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…
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