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

Anthropic Says Opus 5.5 Costs 40% Less to Run. Claude Subscribers Get About 25% More Room

Claude Opus 5.5 usage limits go about 25% further on Pro, Max and Team plans, not 40%. The deeper cache-read cut is API-only, the banked reset expires October 22, and running at max effort can erase much of the gain.

Anthropic Races Ahead With Cheaper Claude Opus 5.5 Just Days After CEO Urged AI Slowdown

San Francisco — Dario Amodei wanted the AI industry to hit the brakes. Ten days later, his own company floored the accelerator. On Sept. 12, the Anthropic chief executive published a lengthy essay calling for a coordinated slowdown in frontier model development. The risks of recursive self-improvement, he argued, demanded more time for safety work to catch up. Yet on Sept. 22, Anthropic unveiled Claude Opus 5.5. The new model matches or exceeds …

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.

Anthropic unveils Claude Opus 5.5

Anthropic on Tuesday launched Claude Opus 5.5, a new AI model that it ​says delivers performance comparable to its top-tier Fable 5.1 while ‌costing 40% less to run than its predecessor.