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Codex session reportedly served by gpt-6-sol in possible A/B test

A ChatGPT Pro user says 12 requests in one Codex session were served as gpt-6-sol, with the server identifying the model as GPT-6 Sol, and links a GitHub issue as evidence.

alex getman
@alexgetmancomArchived 2026.09.22Originally posted 2026.09.22
Codex session reportedly served by gpt-6-sol in possible A/B test
alex getman @alexgetmancomOriginally posted 2026.09.22
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GPT-6 Sol may already be in A/B testing A ChatGPT Pro user reported that 12 requests in one Codex session were served as gpt-6-sol, with the server identifying the model as GPT-6 Sol. https://github.com/openai/codex/issues/46632#issuecomment-5767155368

x.com/alexgetmancom/status/2102156652560474410Archived 2026.09.22 10:17