Oct 9 2026
A harness around a frozen Claude Opus 5 clears all 25 public ARC-AGI-3 games
MODEL
Original reporting
No source was cited for this one in the issue that logged it. The link above searches for it instead of guessing at a URL.
Memento 3 (UCL, Huawei Noah's Ark Lab UK, Liverpool) solves the public set in 7,518 actions against a 17,135-action human baseline. Self-reported and limited to the public games; the same under the standard scores less than half as well on efficiency.
Named in this event
AnthropicARC Prize
Open calls that touch this
- Anthropic holds the Sonnet 5 price increase · 70%, resolves November 30th 2026
- Anthropic IPOs before OpenAI · 75%, resolves August 6th 2027
- Anthropic keeps Model 2 unreleased through February 2027 · 70%, resolves March 1st 2027
- A second flagship API adopts time-of-day pricing · 55%, resolves February 17th 2027
- Anthropic runs no production traffic on Fractile silicon in 2027 · 70%, resolves December 31st 2027
- Broadcom's Anthropic chip financing closes at $60 billion or more · 65%, resolves June 30th 2027
Issues that mention Anthropic, ARC Prize
- Daily brief, August 10th 2026
- Daily brief, August 11th 2026
- Daily brief, August 12th 2026
- Daily brief, August 13th 2026
- Daily brief, August 13th 2026
- Daily brief, August 14th 2026
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