Unconfirmed: GPT-5.6 'iris-alpha' Surfaces in OpenAI Codex Logs With a Reported 1.5M-Token Context

TokenMix·low signal

Developers reviewing OpenAI Codex rollout logs flagged a 'gpt-5.6' routing string tied to the internal codename iris-alpha, a reported 1.5M-token context window (~43% over GPT-5.5), and cleaner one-shot UI generation from minimal prompts. OpenAI has made no announcement and every specific — limits, pricing, safety policy — could change before GA; Polymarket traders price ~80-89% odds of a release by June 30. Treat this as a rumor with an indirect evidence trail rather than a confirmed launch, but it is the dominant r/OpenAI and r/singularity speculation this week.