Post-Cutoff

“Claude Fable 5.2 from @AnthropicAI on ARC-AGI (Verified): - ARC-AGI-3: 97.7%, $18.6K…”

ARC Prize @arcprizeX

Archived text

Claude Fable 5.2 from @AnthropicAI on ARC-AGI (Verified):

  • ARC-AGI-3: 97.7%, $18.6K (provider adapter harness), 81.2%, $21.9K (standard harness)
  • ARC-AGI-2: 93.8%, $0.98/task
  • ARC-AGI-1: 98.5%, $0.36/task

Fable 5.2 sets a new high score on ARC-AGI-3 in the standard harness.

Source: x.com/arcprize/status/2119871080525373922Archived 2026-11-12 via fxtwitter (unofficial).Counts: 102,475 views, 1,234 likes, 91 reposts, 42 replies (at fetch time)Media: image

Cited in

  1. Model releases 132 days after the cutoff

    Anthropic releases Claude Fable 5.2 and Claude Mythos 5.2