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Computer science / Milestone

The Grothendieck Constant

What is the exact value of the real Grothendieck constant?

The source trail 5

Findings, with context
PaperJun 2, 2026

A paper related to Grothendieck constant

arxiv.org contains the excerpt below in a discussion related to Grothendieck constant. Read the source for the surrounding context.

We prove that the Grothendieck constant $K_G < \frac{\pi}{2 \log (1+ \sqrt{2})} - 10^{-5}$.
A linked paper is a research claim, not confirmation that the problem is solved. Source reports an update on 2026-08-11; this is not necessarily the original posting date.
Source pageOriginal source · Found Sep 20
arxiv.org
PaperAug 11, 2026

A paper related to Grothendieck constant

arxiv.org contains the excerpt below in a discussion related to Grothendieck constant. Read the source for the surrounding context.

Together, these bounds determine the previously unknown tenths digit of $K_G$ to be $7$.
A linked paper is a research claim, not confirmation that the problem is solved. Source reports an update on 2026-08-12; this is not necessarily the original posting date.
Source pageOriginal source · Found Sep 20
arxiv.org
DiscussionAug 15, 2026

A source discussing Grothendieck constant

alan_li_ writes the excerpt below in a discussion related to Grothendieck constant. Read the source for the surrounding context.

concretely we prove 1.7135 < KG < 1.7819
This excerpt is evidence of what the linked page says, not verification of its claims.
alan_li_Original source · Found Sep 19
Hacker News
PaperAug 14, 2026

A paper claims the König constant is one

This paper studies the related König constant and claims its value is one, using Boolean pairs in high dimensions.

In this paper, we prove that $\mathfrak K_{\mathrm K}=1$ by constructing a family of Boolean pairs in high dimensions.
The König constant is distinct from the Grothendieck constant watched here. This is related research, not a determination of the Grothendieck constant or confirmation that its open value is settled.
Source pageOriginal source · Found Sep 19
arxiv.org
PaperAug 14, 2026

Researchers report AI-assisted improvements to Grothendieck bounds

Li, Saha, Xue, Chaudhuri, Klivans, Kothari and Meka describe an AI research system used to tighten both bounds on the real Grothendieck constant, with an account of the process and its limitations.

these improvements were achieved using an AI research system
August 14 is the latest revision; the first submission was August 11. The paper reports bounds, not the exact constant, and is an author preprint.
Alan Li and collaboratorsOriginal source · Found Sep 19
arXiv