AI ResearchJul 25, 2026, 9:31 AM

Anthropic's Claude Opus 5 costs well below Fable 5 while matching or beating it across most benchmarks

30-second summary

Anthropic's Claude Opus 5 leads the Artificial Analysis Intelligence Index with 61 points, outperforming Claude Fable 5 and GPT-5.6 Sol in analytical quality and coding, while costing up to half as much.

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Anthropic's Claude Opus 5 costs well below Fable 5 while matching or beating it across most benchmarks
Key takeaways
  • Anthropic's Claude Opus 5 leads the Artificial Analysis Intelligence Index with 61 points.
  • Opus 5 outperforms Claude Fable 5 and GPT-5.6 Sol in analytical quality and coding.
  • Opus 5 costs up to half as much as Fable 5 at lower reasoning tiers.
Full story

Anthropic's Claude Opus 5 has taken the top spot in the Artificial Analysis Intelligence Index, scoring 61 points. This achievement is notable, as Opus 5 not only outperforms Claude Fable 5 but also GPT-5.6 Sol in analytical quality and coding. Furthermore, Opus 5 is priced significantly lower than Fable 5, with costs up to half as much at lower reasoning tiers. This development is significant, as it highlights the potential for cost-effective AI models without compromising on performance.

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Why this matters
Developers

This development highlights the potential for cost-effective AI models without compromising on performance.

Businesses

The cost-effectiveness of Opus 5 makes it an attractive option for businesses looking to integrate AI into their operations.

Investors

The success of Opus 5 demonstrates the potential for AI models to be both effective and cost-efficient.

Everyone

This achievement showcases the advancements in AI technology and its potential applications.

Sources · 1
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