X Users Claim "Opus 5.5" Output Beats Rivals, But No Official Release Exists

DavidmComfort · x · 2026-09-21

An X post claims Anthropic's "Opus 5.5" delivers output so detailed it "mogs" the rumored GPT-6 Astra and Fable 5.1, with some users allegedly switching from Opus 5 as their daily driver and calling it "starting to feel like real AGI."

Caveat: this is unverified hype from a personal account — Anthropic has not announced any model called Opus 5.5, and the rival names cited have no official source. Treat as a rumor, not a release.

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