China's large model enters the OpenAI enterprise payment and settlement system for the first time, and Kimi K3 accesses the Codex enterprise channel中国大模型首次进入 OpenAI 企业付费结算体系，Kimi K3 接入 Codex 企业通道

ITHome, Sept. 30 (Xinhua) -- Baseten, an American AI infrastructure company, today announced a partnership with OpenAI to become one of the first open source model inference service providers in the OpenAI B2B market. Enterprise users can use open source models such as Kimi K3 and GLM 5.3 through Codex, which means that China's open source model has entered the OpenAI enterprise procurement system for the first time. ITHome understands that Kimi K3 is a big model developed on the dark side of the moon. Officially, it is the first open source model with a parameter scale of 2.8 trillion. The model natively supports visual capabilities and has a context window of 1 million tokens, making it ideal for long programming, multi-document analysis, and more. Today, OpenAI enterprise users can access more AI capabilities on the same budget by calling open source models like Kimi K3 through the C…