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TRUE, BUTMoved Ruler

Claude Fable 5 tops the frontier at 49.2%.

The context is who built the tests, and who sells the fix.

“Frontier AI models cannot yet do professional investment analysis: on Samaya AI's new FrontierFinance benchmark every frontier model clears fewer than half of real analyst tasks, and Samaya's own in-house system beats them all, a ceiling an independent Vals AI benchmark reproduces.”

Samaya AI (FrontierFinance) and Vals AI (Finance Agent v2), August 2026

Recorded 19 August 2026. Our ruling means: literally true, materially misleading.

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Receipts pack

The evidence file for this verdict

7 receipts: 3 support the claim, 1 contradict it, 3 add context. 4 figures on the record, 3 traced to a quoted receipt.

The receipts

Each source, the line we quote from it, its date and which way it cuts. Free to read and to cite.

  1. 1Supports the claimarxiv.org ↗

    Samaya's in-house system leads at 56.0%, ahead of the strongest frontier model (Claude Fable 5, 49.2%) at roughly 2.2x lower cost

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  2. 2Contextarxiv.org ↗

    Screening & Discovery and Sector, Industry & Macro remain the hardest use cases across all systems, where even the best systems reach only 33% and 39%.

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  3. 3Supports the claimprnewswire.com ↗

    Anthropic's Claude Fable 5 was the best performing frontier model, scoring 49.2%, followed by GPT-5.6 Sol at 46.8%

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  4. 4Supports the claimprnewswire.com ↗

    Samaya's AI system outperformed every model evaluated.

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  5. 5Contextprnewswire.com ↗

    Investment use cases are uniquely hard for AI because being almost correct is still a loss.

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  6. 6Contradicts the claimkucoin.com ↗

    GPT-5.5 scored approximately 52% accuracy on the Vals AI Finance Agent v2 benchmark, making it the top-performing model

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  7. 7Contextvals.ai ↗

    are the top three performers, separated by less than a point

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Members' extras

What each receipt proves, and what would change our mind.

  • What each receipt above proves, in our words
  • The figures table, each number traced to the receipt that states it
  • The trick behind the claim, explained, with the guide to spotting it
  • What would change our verdict
  • Our call on the record, with its due date

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