Expired50% confidenceFactExact time
OpenAI confirmed in version 5.4 that it would no longer train a dedicated Codex-specific model, with its capabilities having been folded into the main model.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/12/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/10/2026(expired)
Sources
The Death of Codex: How OpenAI Buried Developers' Favorite Coding Brand With Its Own Hands
youtubeTheo - t3․gg7/11/2026
Related Claims
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