Anthropic says Opus 5.5 matches Fable 5.1 for 40% less to run

reported by 2 outlets· 2 articles · confidence: medium · first seen 2026-09-22 16:30 UTC

What this means for you

Nothing to act on yet. Neither account carries a price, a per-token rate or an availability date, and the 40% figure is a running-cost comparison at default settings, not a posted price. Wait for the model card and a published evaluation before re-benchmarking anything.

Anthropic has released Claude Opus 5.5, the first model in a new Claude 5.5 family. Anthropic says it performs at the level of Claude Fable 5.1 on most work and costs 40% less to run than Opus 5 on typical workloads at default settings, according to MarkTechPost. TechCrunch reports lower prices but gives no figures. Both accounts rest on Anthropic's own benchmarks, which MarkTechPost says put it ahead on agentic coding; Anthropic calls it "the strongest-performing model we've tested to date". No prices, availability date or benchmark scores are given, and the evaluation date and test conditions behind the comparison are not stated, so neither claim can be checked independently.

Models in this story

Key facts

  • ·Anthropic released Claude Opus 5.5, described as the first model in a new Claude 5.5 family. source
  • ·Anthropic says Opus 5.5 performs at the level of Claude Fable 5.1 on most work. source
  • ·Anthropic says it costs 40% less to run than Opus 5 on typical workloads at default settings. source
  • ·On Anthropic's own benchmarks it leads in agentic coding, per MarkTechPost. source
  • ·Anthropic called Opus 5.5 "the strongest-performing model we've tested to date". source
  • ·TechCrunch reports lower prices for the model but publishes no figures. source

What the sources say

  • TechCrunch AI — Carries Anthropic's own superlative for the model and frames the launch around pricing, without giving figures.
  • MarkTechPost — Adds the 40% running-cost comparison and the claim of leadership in agentic coding on vendor benchmarks.

Sources

The original reporting. Follow these — they did the work.

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