OpenAI hands its Open Responses spec to the Agentic AI Foundation to standardize LLM APIs
On October 22, 2026, OpenAI transferred Open Responses, its specification for a common LLM API, to the Agentic AI Foundation, hosted by the Linux Foundation, alongside OpenSandbox and OpenEv. For teams juggling multiple model providers, it is a concrete lever for shrinking the vendor-specific integration surface.