Update
Unreleased Models and New Versions Leaked
Users on X have reported that Anthropic is quietly testing an unreleased version of Mythos and Fable, and OpenAI is about to launch GPT 6.2 Astra. The rumors are based on a handful of showcase demos and a catalog entry with a hidden website label that was removed soon after appearing. Fable is the top commercial tier of Claude, a chatbot that competes with ChatGPT, and the priciest flagship Anthropic sells for writing software and handling office work. Anthropic filed for an IPO on October 26, reporting $16.29 billion in revenue for the first half of 2026 against $1.16 billion a year earlier.