Report: OpenAI prepping a $500/month ChatGPT 'Pro Max' tier with the fastest Work and Codex, possibly on Cerebras
RuntimeWire (via r/OpenAI, r/ChatGPT, r/singularity)·medium signal
RuntimeWire, citing TestingCatalog, reported on 2026-09-24 that a Pro Max plan at $500/month would add faster Work and Codex and possibly higher limits, with speculation that it runs on Cerebras. OpenAI has not confirmed it, and DevDay is 2026-09-29. Threads on r/ChatGPT, r/OpenAI and r/singularity also passed on reports that Chat limits will merge into Work/Codex usage. Commenters mostly said the tier makes little sense with Opus 5.5 available unless Astra 6.1 ships with it.