VibeThinker-3B: what is this witchcraft? Killing it at MathQA like it has ~30B parameters

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Summary

VibeThinker-3B is a small 3B parameter model that achieves performance comparable to ~30B parameter models on the MathQA benchmark, demonstrating significant efficiency.

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This technical report introduces VibeThinker-3B, a 3B parameter dense model that achieves frontier-level reasoning performance on benchmarks like AIME26 and LiveCodeBench, matching or exceeding much larger models such as DeepSeek V3.2 and GLM-5 through a combination of curriculum-based SFT, multi-domain RL, and offline self-distillation.