ARC Prize announces evaluation results for Claude Fable 5.2 on the ARC-AGI series

ARC Prize announced the results of Anthropic's Claude Fable 5.2 on the ARC-AGI series: it scored 93.8% on ARC-AGI-2 at a per-task cost of $0.98, ranking third among models seen so far, below GPT-6 Astra's 95.0% and GPT-6.1 Sol's 94.2%. It scored 98.5% on ARC-AGI-1 at a per-task cost of $0.36; on ARC-AGI-3 it scored 81.2% under the standard harness at a cost of $21.9K, and 97.7% under the provider adapter harness at a cost of $18.6K, setting a new ARC-AGI-3 high under the standard harness. ARC Prize also noted that, under the standard harness, the max reasoning tier hit the 12-hour runtime limit on 28/55 semi-private games, scoring 65.7%, lower than the xhigh tier's 81.2%.