dorsal/arxiv
View SchemaUniversal computation is intrinsic to language model decoding
| Authors | Alex Lewandowski, Marlos C. Machado, Dale Schuurmans |
|---|---|
| Categories | |
| ArXiv ID | 2601.08061vv1 |
| URL | https://arxiv.org/abs/2601.08061 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
Language models now provide an interface to express and often solve general problems in natural language, yet their ultimate computational capabilities remain a major topic of scientific debate. Unlike a formal computer, a language model is trained to autoregressively predict successive elements in human-generated text. We prove that chaining a language model's autoregressive output is sufficient to perform universal computation. That is, a language model can simulate the execution of any algorithm on any input. The challenge of eliciting desired computational behaviour can thus be reframed in terms of programmability: the ease of finding a suitable prompt. Strikingly, we demonstrate that even randomly initialized language models are capable of universal computation before training. This implies that training does not give rise to computational expressiveness -- rather, it improves programmability, enabling a natural language interface for accessing these intrinsic capabilities.
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"abstract": "Language models now provide an interface to express and often solve general problems in natural language, yet their ultimate computational capabilities remain a major topic of scientific debate. Unlike a formal computer, a language model is trained to autoregressively predict successive elements in human-generated text. We prove that chaining a language model\u0027s autoregressive output is sufficient to perform universal computation. That is, a language model can simulate the execution of any algorithm on any input. The challenge of eliciting desired computational behaviour can thus be reframed in terms of programmability: the ease of finding a suitable prompt. Strikingly, we demonstrate that even randomly initialized language models are capable of universal computation before training. This implies that training does not give rise to computational expressiveness -- rather, it improves programmability, enabling a natural language interface for accessing these intrinsic capabilities.",
"arxiv_id": "2601.08061",
"authors": [
"Alex Lewandowski",
"Marlos C. Machado",
"Dale Schuurmans"
],
"categories": [
"cs.CL"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Universal computation is intrinsic to language model decoding",
"url": "https://arxiv.org/abs/2601.08061",
"version": "v1"
},
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"execution_id": "841efe0e-52ff-472a-9e7b-7aff8088a4c0",
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"type": "Model",
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