Insiders claim OpenAI and Anthropic hold models far ahead of public releases

Reports suggest OpenAI and Anthropic's internal models lead their public releases by about two months, with insiders claiming both companies hold models far stronger than rumored next-gen releases like Opus 5.5 and GPT-6 Astra.

2026-09-24 ~ 2026-09-25 · 2 related posts

• Next-gen model names surface: Opus 5.5, Fable 5.1, GPT-6 Astra — labs said to be ~2 months ahead internally — haider1 · 2026-09-24
• Claim: Anthropic and OpenAI both hold models far beyond Opus 5.5 — ChrisGPT · 2026-09-25