Rumor: Anthropic has fable 5.5 and Opus 5.6 ready; OpenAI quiet for 2 months

haider1 · x · 2026-11-10

An unverified leak claims Anthropic has fable 5.5 and Opus 5.6 ready but shipped fable 5.2 instead because OpenAI hasn't seriously challenged Opus 5.5's lead in a while. The author also predicts astra 6.x must drop this week or its release cadence is clearly slowing, noting nearly two months since OpenAI's last major model.

Related event: Rumor: OpenAI and Anthropic Sit on Ready New Models(2 posts)→

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