---
id: "2026-09-11-fields-medalists-letter-ai-mathematics"
url: "https://postcutoff.com/e/2026-09-11-fields-medalists-letter-ai-mathematics/"
as_of: "2026-11-13T13:49:00+01:00"
date: "2026-09-11"
date_precision: day
category: science
importance: 3
confidence: high
status: [Result confirmed]
verification: Unverified claim
sources: 8
editor: human editor
human_review: null
version: "2026-10-07"
---

As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2026-09-11-fields-medalists-letter-ai-mathematics/

# Fields Medallists' open letter 'A Severe Misalignment of AI in Mathematics' criticises labs' race for famous problems

On 11 Sep 2026 about 25 Fields Medallists, including Terence Tao, Peter Scholze, Maryna Viazovska and Pierre Deligne, published an open letter criticising AI labs for treating famous open problems as marketing targets. It cited the Navier–Stokes announcement and the Jacobian-conjecture tweet. It does not call for a ban on AI in mathematics.

## Key facts
- Signatories: 25 Fields Medallists per Scientific American (Wikipedia lists 26)
- Concerns: announcement by press release or tweet, credit to prior human work, data provenance, and incentives distorting mathematics
- Signatures grew to 7,000+ by 19 Sep 2026 (Po-Shen Loh); the separate Leiden Declaration (June 2026) had 4,000+
- Context: an Aug 2026 arXiv essay 'The crisis of AI-generated mathematics' (2608.02859) argued for total opposition; the letter is more moderate

## What happened

Three days after OpenAI's Navier–Stokes announcement, the mathematical establishment's most decorated members publicly objected to how AI companies pursue and publicise famous problems.

## Why it matters

It marked open tension between AI labs and the mathematical community at the moment AI began producing major results, and shaped norms for credit and verification.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): 134 days after its cutoff
- Claude Opus 5.5 (training cutoff June 2026): 73 days after its cutoff
- Gemini 4 Hydrogen (training cutoff March 2026): 164 days after its cutoff
- Grok 4.7 (training cutoff May 2026): 103 days after its cutoff

## Sources

1. [Terence Tao: A severe misalignment of AI in mathematics](https://terrytao.wordpress.com/2026/09/11/a-severe-misalignment-of-ai-in-mathematics/) (terrytao.wordpress.com, official)
2. [mathandai.org: A Severe Misalignment of AI in Mathematics (declaration text, signatories)](https://mathandai.org/) (mathandai.org, official)
3. [Terence Tao on Mathstodon announcing the declaration](https://mathstodon.xyz/@tao/117253629967855195) (mathstodon.xyz, official)
4. [Scientific American: 25 winners of math's Nobel decry the AI invasion of their discipline](https://www.scientificamerican.com/article/25-winners-of-maths-nobel-prize-decry-the-ai-invasion-of-their-discipline/) (scientificamerican.com, press)
5. [Grant Sanderson (guest post on Terence Tao's blog, Sept 18, 2026): If math is more than proof, we need to better celebrate the rest of it](https://terrytao.wordpress.com/2026/09/18/if-math-is-more-than-proof-we-need-to-better-celebrate-the-rest-of-it/) (terrytao.wordpress.com, discussion)
6. [David Bessis: The fall of the theorem economy (Apr 21, 2026)](https://davidbessis.substack.com/p/the-fall-of-the-theorem-economy) (davidbessis.substack.com, discussion)
7. [The crisis of AI-generated mathematics (arXiv 2608.02859)](https://arxiv.org/abs/2608.02859) (arxiv.org, discussion)
8. [Timothy Gowers: Why I didn't sign the Fields medallists' letter](https://terrytao.wordpress.com/2026/09/17/why-i-didnt-sign-the-fields-medallists-letter/) (terrytao.wordpress.com, discussion)

## Changes

- 2026-10-07: Linked the video [“The last IMO problem AI could not solve”](https://postcutoff.com/v/3blue1brown-last-imo-problem-ai-could-not-solve/)
- 2026-10-03: Linked two essays on what mathematics is for once AI can prove theorems (Sanderson guest post, Bessis) and added post files
- 2026-09-29: Added post link(s) (3) from Google/DeepMind + math posts pass
- 2026-09-29: Added 7,000+ signatory count (Po-Shen Loh guest post) and links to the Leiden Declaration, Royal Society and ICIAM entries
- 2026-09-29 (filed): Created

## Related

- 2026-09-24: [ICIAM issues a Statement on Mathematics and Artificial Intelligence](https://postcutoff.com/e/2026-09-24-iciam-statement-mathematics-ai/index.md)
- 2026-09-16: [42 mathematician Fellows of the Royal Society](https://postcutoff.com/e/2026-09-16-royal-society-fellows-ai-risk-letter/index.md)
- 2026-09-08: [OpenAI claims a Millennium Prize problem](https://postcutoff.com/e/2026-09-08-openai-navier-stokes-blowup/index.md)
- 2026-07-20: [Claude Fable 5 finds a counterexample to the Jacobian conjecture in dimension 3](https://postcutoff.com/e/2026-07-20-jacobian-conjecture-counterexample/index.md)
- 2026-06-02: [Leiden Declaration on Artificial Intelligence and Mathematics sets community norms for AI in maths (4,000+ signatories)](https://postcutoff.com/e/2026-06-02-leiden-declaration-ai-mathematics/index.md)
- People: [Terence Tao](https://postcutoff.com/person/terence-tao/), [Timothy Gowers](https://postcutoff.com/person/timothy-gowers/)
- Archived: 7 posts and 1 video, listed in https://postcutoff.com/e/2026-09-11-fields-medalists-letter-ai-mathematics/index.json