Expired50% confidenceFactExact time
OpenAI Codex ships with GPT-5.5 by default
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Connecting OpenAI Codex to Chinese AI Models: A Zero-Barrier AI Programming Guide
bilibiliAI后端Marion6/14/2026
Related Claims
VerifiedOpenAI Codex is built on top of the GPT-4 series of models.79% similarUnverifiedIt remains uncertain whether OpenAI will impose restrictions on the approach of calling GPT-5.5 under the Codex name in the future.77% similarUnverifiedOpenAI launched the GPT-5 Codex model on September 15.74% similar
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