Varto proves complete PutnamBench AI math benchmark in Isabelle
July 23, 2026How we solved PutnamBenchA look at formally proving undergraduate competition mathematicsTo stress-test our upcoming Isabelle-based verification platform, we pointed Varto Cloud at the PutnamBench benchmark. The Putnam Mathematical Competition is an annual undergraduate mathematics competition, and PutnamBench is a collection of its problems formalized for theorem provers.0 / 640benchmark targets proved and verified in IsabelleVarto solved all 640 Isabelle formalizations. This marks the first Isabelle submission and the first submission to solve an entire benchmark category.
- ▪July 23, 2026How we solved PutnamBenchA look at formally proving undergraduate competition mathematicsTo stress-test our upcoming Isabelle-based verification platform, we pointed Varto Cloud at the PutnamBench benchmark.
- ▪The Putnam Mathematical Competition is an annual undergraduate mathematics competition, and PutnamBench is a collection of its problems formalized for theorem provers.0 / 640benchmark targets proved and verified in IsabelleVarto solved all
- ▪This marks the first Isabelle submission and the first submission to solve an entire benchmark category.
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Record
| Original publisher | Varto |
| Canonical URL | https://varto.ai/news/putnambench/ |
| Publication time | Tue, 04 Aug 2026 15:23:54 +0000 |
| Retrieval time | 2026-08-04T15:35:41.627Z |
| Last seen | 2026-08-04T15:35:41.627Z |
| 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 | Z9IXVNgfK1Ts · 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 |
Rights status (four layers)
WeSearch handling by dimension
| 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
July 23, 2026How we solved PutnamBenchA look at formally proving undergraduate competition mathematicsTo stress-test our upcoming Isabelle-based verification platform, we pointed Varto Cloud at the PutnamBench benchmark. The Putnam Mathematical Competition is an annual undergraduate mathematics competition, and PutnamBench is a collection of its problems formalized for theorem provers.0 / 640benchmark targets proved and verified in IsabelleVarto solved all 640 Isabelle formalizations. This marks the first Isabelle submission and the first submission to solve an entire benchmark category. This makes Varto the undisputed number one in the Isabelle category.We also auto-formalized every problem missing from the Isabelle category.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Varto.
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