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FrontierThe story, in brief

Anthropic claims its new Claude Opus 5 delivers near-Fable 5 performance at half the token price

30.2% on ARC-AGI-3. Anthropic's Claude Opus 5 just matched Fable 5's reasoning while undercutting it on price.

Reporting by The Decoder 1 min brief
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The KeyNews take

Why it matters

Anthropic is competing on both capability and unit economics. A model that matches top-tier performance at half the token cost reshapes how enterprises evaluate LLM spend and vendor lock-in.

The key facts

5 to know

  1. Claude Opus 5 scores 30.2% on ARC-AGI-3 benchmark

  2. Performance nearly matches Fable 5 (benchmark comparison implied)

  3. Token pricing at 50% of Fable 5 competitor

  4. Outperforms GPT-5.6 Sol on novel problem-solving

  5. Flagship model release targeting coding and knowledge work

Go to the source

The Decoderthe-decoder.com

Publisher excerpt: Anthropic's new flagship model Claude Opus 5 posts top scores in coding and knowledge work at half of Fable 5's token rates. On ARC-AGI-3, a benchmark for novel problem-solving, Opus 5 hits 30.2 percent, nearly four times higher than GPT-5.6 Sol.
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