Scaling up Test-Time Compute with Latent Reasoning: A Recurrent Depth Approach

Fuente: arXiv
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Autori principali: Geiping, Jonas, McLeish, Sean, Jain, Neel, Kirchenbauer, John, Singh, Siddharth, Bartoldson, Brian R., Kailkhura, Bhavya, Bhatele, Abhinav, Goldstein, Tom
Natura: Preprint
Pubblicazione: 2025
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author Geiping, Jonas
McLeish, Sean
Jain, Neel
Kirchenbauer, John
Singh, Siddharth
Bartoldson, Brian R.
Kailkhura, Bhavya
Bhatele, Abhinav
Goldstein, Tom
author_facet Geiping, Jonas
McLeish, Sean
Jain, Neel
Kirchenbauer, John
Singh, Siddharth
Bartoldson, Brian R.
Kailkhura, Bhavya
Bhatele, Abhinav
Goldstein, Tom
contents We study a novel language model architecture that is capable of scaling test-time computation by implicitly reasoning in latent space. Our model works by iterating a recurrent block, thereby unrolling to arbitrary depth at test-time. This stands in contrast to mainstream reasoning models that scale up compute by producing more tokens. Unlike approaches based on chain-of-thought, our approach does not require any specialized training data, can work with small context windows, and can capture types of reasoning that are not easily represented in words. We scale a proof-of-concept model to 3.5 billion parameters and 800 billion tokens. We show that the resulting model can improve its performance on reasoning benchmarks, sometimes dramatically, up to a computation load equivalent to 50 billion parameters.
format Preprint
id arxiv_https___arxiv_org_abs_2502_05171
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Scaling up Test-Time Compute with Latent Reasoning: A Recurrent Depth Approach
Geiping, Jonas
McLeish, Sean
Jain, Neel
Kirchenbauer, John
Singh, Siddharth
Bartoldson, Brian R.
Kailkhura, Bhavya
Bhatele, Abhinav
Goldstein, Tom
Machine Learning
Computation and Language
We study a novel language model architecture that is capable of scaling test-time computation by implicitly reasoning in latent space. Our model works by iterating a recurrent block, thereby unrolling to arbitrary depth at test-time. This stands in contrast to mainstream reasoning models that scale up compute by producing more tokens. Unlike approaches based on chain-of-thought, our approach does not require any specialized training data, can work with small context windows, and can capture types of reasoning that are not easily represented in words. We scale a proof-of-concept model to 3.5 billion parameters and 800 billion tokens. We show that the resulting model can improve its performance on reasoning benchmarks, sometimes dramatically, up to a computation load equivalent to 50 billion parameters.
title Scaling up Test-Time Compute with Latent Reasoning: A Recurrent Depth Approach
topic Machine Learning
Computation and Language
url https://arxiv.org/abs/2502.05171