ARC Prize announces evaluation results of DeepSeek V4.1 Flash 1017 on ARC-AGI

ARC Prize announces the verified results of DeepSeek V4.1 Flash 1017 on ARC-AGI: ARC-AGI-2 at 78.1% with $0.16 per task, ARC-AGI-1 at 94.5% with $0.06 per task, and ARC-AGI-3 at 5.8% with $1.2K under the provider adapter harness and 0.2% with $1.0K under the standard harness. The model leads open-weight models on ARC-AGI-3 and ARC-AGI-2, and matches the best score of open-weight models on ARC-AGI-1. Compared with the original V4.1 Flash from September 10, 2026, 1017's ARC-AGI-3 semi-private set score rose from 2.68% to 5.81%, while its public set score fell from 11.05% to 8.97%; at maximum reasoning effort, the reasoning tokens consumed by its first action decreased by an average of 36% across 25 public games and by 48.6% across 55 semi-private games.