OpenAI releases GPT-6 by September 15 2026

OpenAI's major-version gaps have run 12 to 15 months (GPT-4 March 2023, GPT-4o May 2024, GPT-5 August 2025); September 2026 sits 13 months after GPT-5, inside the cadence. DRIFT DISCLOSED: drafted against a 0.33 venue price on 9/1; the venue moved to 0.465 by registration, toward this number. Registered as the 45-day anchor for the 2026-09-06 Sharp send; the fast grade is its function. CORRECTION 2026-09-07: the two venue prices cited above (0.33 on 9/1, 0.465 at registration) CANNOT BE SUBSTANTIATED. The declared Polymarket slug returns zero results from the gamma API, last_market_success_at was NULL, and market_consecutive_failures was 2 with error kind not_found. No price on this call was ever fetched from a venue by the system. Whoever observed those numbers on 9/1 was reading something that was never recorded, and the source is unknown. The drift disclosure was made in good faith and is left standing above; this note records that its underlying prices have no provenance. The call was reclassified to no_market on 2026-09-06 and grades on the absolute track against the outcome.