OpenAI Codex Natively Supports Open-Source Models Like GLM and Kimi

OpenAI's Codex now natively supports open-source models such as GLM-5.3 Flash and Kimi K3, with usage counted against OpenAI enterprise subscription credits. Commentators see this as a notable shift toward openness in OpenAI's ecosystem.

2026-09-30 ~ 2026-09-30 · 2 related posts

• OpenAI Codex now natively runs open models like GLM-5.3 Flash and Kimi K3 — HarveenChadha · 2026-09-30
• Codex now natively runs open models like GLM-5.3 Flash and Kimi K3, billed to OpenAI commits — thsottiaux · 2026-09-30