Anthropic's Claude Opus 5.5 matches Fable 5.1, runs 40% cheaper than Opus 5

AI/Anthropic/
Anthropic's Claude Opus 5.5 matches Fable 5.1, runs 40% cheaper than Opus 5
Source: Anthropic

Anthropic released Claude Opus 5.5, opening a new 5.5 line of models. The company says it matches Claude Fable 5.1 on most tasks while running about 40% cheaper than Opus 5 and generating output over 30% faster. Anthropic's own benchmarks place Opus 5.5 ahead of Fable 5.1 in agentic coding and knowledge work. Token prices fall 20%.

3 sources

  1. 01TechCrunch — Anthropic releases Opus 5.5 with lower prices and Fable-level performancetechcrunch.com
  2. 02VentureBeat — Anthropic releases Claude Opus 5.5, beating Fable 5.1 on key agentic benchmarks at 60% cheaper API priceventurebeat.com
  3. 03MacRumors — Anthropic Launches Claude Opus 5.5 With Fable-Level Performance at a Lower Pricemacrumors.com