s1: Simple test-time scaling

Muennighoff et al., 2025, s1 (Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing)

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5.1 Data Quantity, Diversity, and Difficulty

  1. What did s1’s data ablations show?
    Choosing 1,000 samples by quality alone (random), diversity alone, or difficulty alone (longest traces) was clearly worse than s1K, about 30 points lower on AIME24 on average. Training on all 59K was not clearly better, while costing 394 H100 hours instead of 7.
    • Muennighoff et al., 2025, s1 (Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing), §5.1, pp. 20280, 20282

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