Expired50% confidenceEventExact time
The GPT-MH2 model in OpenAI Codex disappeared directly from the application during the service outage.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Related Claims
UnverifiedAfter GPT-3, OpenAI gradually stopped releasing full model weights and provides access only through a paid API.69% similarVerifiedOpenAI Codex is built on top of the GPT-4 series of models.66% similarUnverifiedThe Codex APP currently only supports OpenAI's own models, including GPT-5.3 Cortex and others.66% similar
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