Fable 5.1 Hits High ARC-AGI Scores at Lower Cost

The ARC Prize account posted that Fable 5.1 from AnthropicAI scored 90.0 percent on ARC-AGI-2 at 3.12 dollars per task and 97.5 percent on ARC-AGI-1 at 1.40 dollars per task. The post states the average cost per task across both benchmarks fell 32 percent from Fable 5 because of better token efficiency. An attached dark-themed scatter plot displays the ARC-AGI 2 leaderboard.