Hybrid Latent Reasoning via Reinforcement Learning
Uses reinforcement learning to choose and train a mixture of latent and written reasoning steps.
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arXiv:2505.18454 · Initial submission: 2025-05-24
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Continuous-state reasoning — Use vectors—lists of numbers—to carry intermediate reasoning from one step to the next, instead of selecting a text token at every step. Some methods use the model's hidden states; others combine several candidate token representations.
Internalized reasoning — Learn from worked solutions so that some or all of the reasoning can later happen without writing those steps. Training may use a separate teacher model or progressively remove written steps from the model being trained.
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