Claude Fable 5 AI finds a formula that topples an 87-year-old math conjecture
Science News from research organizations Claude Fable 5 AI finds a tiny formula that topples an 87-year-old math conjecture Claude Fable 5 helped uncover a tiny formula that toppled a century-old mathematical conjecture in three dimensions and beyond. Date: August 5, 2026 Source: The Conversation Summary: A mathematician working at Anthropic says he used the AI model Claude Fable 5 to uncover a remarkably simple counterexample to the Jacobian conjecture, a famous problem that has resisted mathematicians for more than a century. The result shows that the conjecture is false in three dimensions and above, although the original two-dimensional version remains unsolved.
- ▪Science News from research organizations Claude Fable 5 AI finds a tiny formula that topples an 87-year-old math conjecture Claude Fable 5 helped uncover a tiny formula that toppled a century-old mathematical conjecture in three dimensions
- ▪Date: August 5, 2026 Source: The Conversation Summary: A mathematician working at Anthropic says he used the AI model Claude Fable 5 to uncover a remarkably simple counterexample to the Jacobian conjecture, a famous problem that has resiste
- ▪The result shows that the conjecture is false in three dimensions and above, although the original two-dimensional version remains unsolved.
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| Original publisher | ScienceDaily |
| Canonical URL | https://www.sciencedaily.com/releases/2026/08/260804034634.htm |
| Publication time | Fri, 07 Aug 2026 08:36:02 +0000 |
| Retrieval time | 2026-08-07T08:50:41.544Z |
| Last seen | 2026-08-07T08:50:41.544Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | m6hA8_Fg7p4J · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Science News from research organizations Claude Fable 5 AI finds a tiny formula that topples an 87-year-old math conjecture Claude Fable 5 helped uncover a tiny formula that toppled a century-old mathematical conjecture in three dimensions and beyond. Date: August 5, 2026 Source: The Conversation Summary: A mathematician working at Anthropic says he used the AI model Claude Fable 5 to uncover a remarkably simple counterexample to the Jacobian conjecture, a famous problem that has resisted mathematicians for more than a century. The result shows that the conjecture is false in three dimensions and above, although the original two-dimensional version remains unsolved.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at ScienceDaily.
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