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Enhancing Latent Computation in Transformers with Latent Tokens

Yuchang Sun, Yanxi Chen, Yaliang Li, Bolin Ding

Adds trainable dummy tokens to a pretrained transformer so attention can use them for extra computation during decoding. The tokens can be inserted in different positions at inference time.

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arXiv:2505.12629 · Initial submission: 2025-05-19

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Thinking tokens — Give a model extra tokens for computation, such as pauses, filler symbols, or learned planning tokens. These tokens need not spell out the solution.

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