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Think Silently, Think Fast: Dynamic Latent Compression of LLM Reasoning Chains

Wenhui Tan, Jiaze Li, Jianzhong Ju, Zhenbo Luo, Ruihua Song, Jian Luan

Dynamically compresses portions of a reasoning chain into latent states according to the problem and intermediate context.

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arXiv:2505.16552 · Initial submission: 2025-05-22

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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.

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.

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