Manuscript OpenAI@2026-10-07 · OpenAI.tex · remark · 6a931f8f

Remark: 139-01. Subpolynomial query complexity for well-conditioned log-concave sampling

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Authors: OpenAI. Family 139.

Title: Subpolynomial query complexity for well-conditioned log-concave sampling.

Abstract: For every fixed ε > 0, we give a sampling algorithm using at most $C_{}varepsilon d{}{}varepsilon$ exact first-order queries on every execution for C2 potentials on ℝd with a known minimizer and Hessian between Id and $2I_d$. The output has total-variation distance at most 1/10 from the target Gibbs law. Computation between queries is unrestricted. We also prove an ${}Omega({}log d)$ query lower bound for arbitrary randomized adaptive algorithms, determining the optimal dimension exponent to be zero.

This abstract is a catalogue record. It is not a verification and not a premise. It does not close O.1. O.1 stays NOT_CLOSED. No quantum coefficient is admitted. No compilation is asserted.

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