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OpenAI donates Open Responses, its spec for a common LLM API, to the Agentic AI Foundation

Source: The New StackFrederic LardinoisOctober 22, 2026
Read the full story at The New Stack

OpenAI has contributed its Open Responses API specification to the Agentic AI Foundation (part of the Linux Foundation), aiming to create a common standard for LLM APIs. The specification standardizes how developers interact with different language models by defining consistent formats for core building blocks like messages and function calls, reducing the need for provider-specific integrations. Databricks and Vercel have already implemented the standard.

Key points

  • Standardizes LLM API primitives across providers
  • Reduces developer friction switching between models
  • Databricks and Vercel already implementing

Summary and key points written by AI from the headline and a short excerpt, so they can be incomplete or wrong. The New Stack did the reporting; read the original for the full story.

Read the full story at The New Stack

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