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arXiv · 2602.12630

TensorCommitments: A Lightweight Verifiable Inference for Language Models

Oguzhan Baser·Elahe Sadeghi·Eric Wang·David Ribeiro Alves·Sam Kazemian·Hong Kang·Sandeep P. Chinchali·Sriram Vishwanath
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Abstract

Most large language models (LLMs) run on external clouds: users send a prompt, pay for inference, and must trust that the remote GPU executes the LLM without any adversarial tampering. We critically ask how to achieve verifiable LLM inference, where a prover (the service) must convince a verifier (the client) that an inference was run correctly without rerunning the LLM. Existing cryptographic works are too slow at the LLM scale, while non-cryptographic ones require a strong verifier GPU. We propose TensorCommitments (TCs), a tensor-native proof-of-inference scheme. TC binds the LLM inference to a commitment, an irreversible tag that breaks under tampering, organized in our multivariate Terkle Trees. For LLaMA2, TC adds only 0.97% prover and 0.12% verifier time over inference while improving robustness to tailored LLM attacks by up to 48% over the best prior work requiring a verifier GPU.

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Oguzhan Baser, Elahe Sadeghi, Eric Wang, David Ribeiro Alves, Sam Kazemian, Hong Kang, Sandeep P. Chinchali, Sriram Vishwanath. 2026-02-13. TensorCommitments: A Lightweight Verifiable Inference for Language Models. https://arxiv.org/abs/2602.12630

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