GPT-5.6 Appears in OpenAI Codex Logs — Prediction Markets Price June Release at 80-89%

WaveSpeed Blog·low signal

While OpenAI has made no official announcement, GPT-5.6 identifiers have appeared in Codex system logs, and Polymarket and Manifold Markets are pricing a public release by June 30 at 80-89% probability. This follows the pattern of GPT-5.5 shipping April 24 — a roughly 2-month cadence. OpenAI has not confirmed the model designation or capabilities. Single-source signal from leaked logs; treat as speculative until official announcement.