MIT releases 1,451 verified reasoning traces from DeepSeek V4.1 Flash, decontaminated

1,451 verified max-effort reasoning traces from DeepSeek v4.1 Flash, decontaminated against AIME + MATH-500 — MIT

MIT released 1,451 verified max-effort reasoning traces from DeepSeek V4.1 Flash, decontaminated against AIME and MATH-500. The post doesn't specify trace format, length distribution, or whether reward signals are included.