Expired60% confidenceFactExact time
Vendors including Anthropic's Claude, Google's Gemini, domestic Zhipu GLM, and Moonshot Kimi all provide interfaces or adaptation layers compatible with the OpenAI Chat Completions API
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Codex++ with Free API: A Complete Guide to Using Codex at Zero Cost
bilibili开源项目盘点6/5/2026
Related Claims
VerifiedOpenAI's Chat Completions API format of using a message array as input has become the de facto industry standard, with mainstream model providers such as Anthropic, Google Gemini, and Mistral all offering compatible or similar interfaces.79% similarVerifiedOpenAI's Assistants API, Anthropic's tool-calling interface, and Google Gemini's Agent capabilities continue to iterate.79% similar
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