Anthropic releases Claude Opus 5.5 at lower prices
Anthropic
Anthropic launched Claude Opus 5.5, its strongest model to date, performing at the level of Fable 5.1 on most work. Pricing drops to $4/$20 per million tokens with cache reads cut to $0.20, and Sonnet 5.5 and Haiku 5.5 are promised in the coming weeks. It carries Fable-level safeguards and was tested externally by METR and Frontier Design.
Why it matters
Anthropic is compressing the gap between its best and cheapest frontier models at a 20-60% price cut, hours before OpenAI countered with its own cheaper GPT-6 tiers.
Importance: 5/5
Anthropic flagship frontier release with an official announcement and multiple independent confirmations
Sources
official
Introducing Claude Opus 5.5