Unverified50% confidenceFactExact time
On October 1, 2026, OpenAI set the shutdown date for gpt-5.1 and gpt-5.3-codex as April 1, 2027, a six-month notice period.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/14/2026
First Seen
Valid until: 1/12/2027
Sources
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