Claude Opus 5.5 Delivers Fable 5.1 Performance - and Costs 40% Less

Anthropic releases Opus 5.5 and cuts pricing by 20%. Your agent calls might secretly get routed to an older model.

Opus 5.5 costs 40% less to run than Opus 5 — but its safety classifiers can silently reroute requests to older models mid-workflow.

Anthropic releases Opus 5.5 with lower prices and Fable-level performance

Anthropic called it "the strongest-performing model we've tested to date."

Claude Opus 5.5 delivers Fable 5.1 performance - and costs 40% less

Anthropic’s newest Claude model aims to make frontier AI cheaper, faster, and safer, while giving subscribers more breathing room before those frustrating usage limits kick in.

I left Claude for months. Opus 5.5 is why I'm back

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Anthropic's Claude Opus 5.5 Appears In Claude Code, Indicating Imminent Release, As Trump Renames AI To "Super Intelligence" Or SI

It seems Anthropic is not following its own call to pace the development of AI, as indicated by the imminent launch of Claude Opus 5.5, which would mark just around three weeks since the AI lab released Claude Fable 5.1. Meanwhile, as the conversation around AI safety continues unabated, with Anthropic's Dario Amodei and OpenAI's Sam Altman due in the UN Security Council this week, President Trump has officially renamed artificial intelligence t…