ARC Prize(@arcprize):We had early access to Anthropic’s Fable 5, but did not run verified Semi-Private ARC-AGI-1/2/3 evals due to their new data-retention terms for Mythos-class models. We’re working with Anthropic to keep ARC verification data private. Scores will come once we can run them safely.

ARC Prize

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ARC Prize@arcprize

2026.06.09 17:28

We had early access to Anthropic’s Fable 5, but did not run verified Semi-Private ARC-AGI-1/2/3 evals due to their new data-retention terms for Mythos-class models. We’re working with Anthropic to keep ARC verification data private. Scores will come once we can run them safely.

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