Standardizing OpenAI-Compatible APIs: A Path Towards Interoperability
2025-06-04
Many LLM providers and open-source projects offer OpenAI-compatible Completions and Chat Completions APIs. However, OpenAI considers Completions a legacy API and emphasizes the OpenAI Responses API. The lack of standardization across providers leads to inconsistencies in feature support (e.g., assistant prefixes), causing developer frustration. To address this, a standardization working group is striving to create a superset of OpenAI-compatible APIs, simplifying development and improving interoperability within the LLM ecosystem.
Development
API Standardization