Open Message Format – a compact, vendor-agnostic spec for messages

In plain words

Open Message Format is a standardized specification for messages designed to be compact and independent of any particular vendor. It provides a vendor-neutral framework that allows different systems and platforms to exchange messages consistently. The format is intended for developers and organizations seeking interoperability across messaging systems without being locked into proprietary solutions. By establishing a common specification, it enables various tools and services to work together seamlessly.

written from the facts on this page · September 2026

From the sources

OMF is a compact, user-friendly specification that defines a lightweight API contract between client and server for building conversational agents, and defines a standard schema for the "messages" object, which contains user and assistant interactions. - GitHub - open-llm-initiative/open-message-format: OMF is a compact, user-friendly specification that defines a lightweight API contract between c

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