LLMJul 24, 2026, 6:36 PM

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

30-second summary

Anthropic introduced Claude Opus 5, its latest flagship model, which claims to match Fable 5 performance while costing half as many tokens. The model achieved a 30.2% score on the ARC-AGI-3 benchmark, outpacing GPT‑5.6 Sol.

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Anthropic claims its new Claude Opus 5 delivers near-Fable 5 performance at half the token price
Key takeaways
  • Claude Opus 5 claims near‑Fable 5 performance with half the token cost.
  • Achieved a 30.2% score on the ARC‑AGI‑3 benchmark, far surpassing GPT‑5.6 Sol.
  • Leads coding and knowledge‑work benchmarks, indicating strong developer utility.
Full story

Anthropic announced its new flagship language model, Claude Opus 5, positioning it as a cost‑effective alternative to the high‑performing Fable 5 system. The company says the model delivers comparable results while requiring roughly half the token consumption, which could lower inference costs for users.

In benchmark testing, Opus 5 recorded a 30.2% score on the ARC‑AGI‑3 suite, a metric designed to evaluate novel problem‑solving abilities. This score is nearly four times higher than the reported performance of GPT‑5.6 Sol on the same test.

The model also topped coding and knowledge‑work evaluations, suggesting it may be well suited for developer tools, code generation, and enterprise knowledge‑base applications. Anthropic highlighted the token‑price advantage as a key differentiator for businesses seeking scalable AI solutions.

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Why this matters
Developers

Lower token costs can reduce expenses for code‑generation and AI‑assisted development tools.

Businesses

Cost‑effective high‑performance models help control AI operating budgets while maintaining capability.

Investors

Shows Anthropic's competitive edge and potential market share growth against rivals.

Everyone

Offers powerful AI at a more affordable price, expanding access.

Glossary
ARC-AGI-3
A benchmark suite measuring a model's ability to solve novel, reasoning‑heavy problems.
Fable 5
A high‑performance language model referenced as a performance baseline in the AI community.
Sources · 2
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