2026-10-11 17:14 UTC

Anthropic claims its Claude agent swarm produced a substantive numerical advance toward the Riemann Hypothesis — a claimed 50% result, since pushed to 67.25 under attempts to break it — now passing through Lean and expert-mathematician checking; verified acceptance of the bound establishes frontier agent teams as credible attackers of top-tier open problems, while a broken or retracted proof deflates the claim.

state: corroboratedheat: mediumuncertainty: mediumconvergesscott: highai-assisted-mathematics anthropic frontier-capability-claimsAnthropicEllie Sleightholm

What is this?

On 2026-08-10 Anthropic published its own research note (anthropic.com/research/riemann-zeta, now among the results — superseding the case's Sleightholm-commentary anchor) reporting that an unreleased research version of Claude, while attempting and failing to prove the Riemann Hypothesis, raised the best lower bound on the proportion of zeta zeros lying on the critical line from 41.6% to 67.2% — per AI Weekly, the largest single-step improvement ever recorded for this bound. The result came out of a Claude Code agent swarm: roughly 60 subagents over ~36 hours, ~31M output tokens, ~650 candidate approaches, with the winning argument synthesizing a 2000 Bombieri paper with results of Baluyot–Goldston–Suriajaya–Turnage-Butterbaugh; subagents reviewed proofs, searched for counterexamples, downloaded 54 arXiv papers for novelty checks, and independently re-proved the finding. Verification is layered but not peer review: Anthropic mathematicians Levent Alpöge and Ralph Furman validated the manuscript, a Lean 4 formalization (with Eric Easley) passed the standard checker, and outside experts Brian Conrey and Dan Goldston reviewed on short notice, with independent community review only beginning as of the August announcement. Conflict flag for the case record: the hypothesis's '50% → 67.25%' framing does not match the sources — all give 41.6% as the prior bound, and 67.25% appears only in Kingy AI's writeup while Anthropic itself says 67.2%.

Why it matters to Scott

Anthropic's swarm independently operationalised the verification architecture Scott's own dev wiki codifies — subagent proof review, counterexample search and independent re-proof (review-until-clear loop, adversarial expert panel), a Lean 4 checker as the hard authority underneath free machine-native exploration, and claim-bounded adversarial challenge of a validated AI finding — so the community review now beginning is a live, resolvable test of patterns he argues for, with a dated-receipts publishing opportunity ('the frontier lab built the stack I documented'). The grounding's number drift (41.6%→67.2% per Anthropic; '67.25' only in secondary writeups) is itself a fresh instance of the capability-claim mutation his evidence–inference–falsifier-reporting pattern exists to catch. Continues the radar's Claude-vs-open-problems lineage (Borsuk, Jacobian, Hopf — with Alpöge now on the validation side at Anthropic).
dev:concept.review-until-clear-loopdev:concept.claim-bounded-adversarial-verificationdev:concept.adversarial-agent-panelip:framework.agent-native-computingdev:concept.evidence-inference-falsifier-reportingradar:claude-borsuk-counterexampleradar:claude-fable-jacobian-counterexampleradar:hopf-proof-codex-lean-formalizationradar:anthropic-multiagent-patterns-validationradar:concept.ai-assisted-mathematicsradar:concept.formal-verificationradar:concept.leanradar:concept.agent-verificationradar:concept.multi-agent-orchestrationradar:concept.long-horizon-agentsradar:concept.frontier-labs
queries asked of Scott's wikis
  • multi-agent orchestration subagent swarm harness patterns
  • formal verification Lean checker as agent reward loop
  • agent self-review counterexample search cross-examination quality gates
  • frontier lab capability claims evidence standards unreleased models
  • long-horizon agent research tasks token cost economics
  • run provenance transcripts reproducibility as product pattern

Measured heat

now 0 pts/hpeak 9 pts/hcomments 0/hpeers p0momentum: steady2 platformsage 1514h
points/hour across evidence · reading as of 2026-10-12 02:59:37.977291+11:00 · deterministic, not a model opinion

How the heat travelled

08-09 14:00⭐ origin echo-reconstructedAnthropic's research post "Learning more about Claude's mathematical capabilities": "Recently, a member of staff at Anthropic gave Claude an
Anthropic on blog (echo) · attributed from reddit.post.1wwzje5
—
10-03 22:15first on r/singularity · published · +1328.3hAnthropic Took On the Riemann Hypothesis. Here’s What Actually Happened | Ellie Sleightholm
SammaVaco
—
10-05 21:49first on r/ClaudeAI · published · +1375.8hClaude and I beat Claude's previous proof of the proportion of online zeta zeros. It's now 67.348%.
Just_Shallot_6755
—
10-03 22:15amplified on r/singularityreddit.post.1wwzje5
SammaVaco
peak 0 · 10 comments · 23% of case engagement
10-05 21:49amplified on r/ClaudeAI 👑reddit.post.1wylch8
Just_Shallot_6755
peak 26 · 7 comments · 77% of case engagement
10-03 22:20our radar first saw it · +1328.3hdiscovery anchor: reddit.post.1wwzje5—

Evidence (3) — ⭐ canonical anchor

sourceobjectauthorscorecomments
🟠 redditAnthropic Took On the Riemann Hypothesis. Here’s What Actually Happened | Ellie Sleightholm
singularity
Retrieved article excerpt

Open article · Retrieved 2026-10-03T22:25:42.498235+00:00

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Anthropic Took On the Riemann Hypothesis. Here’s What We Found

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## Anthropic Took On the Riemann Hypothesis. Here’s What We Found

Ellie Sleightholm 593,395 views 6 days ago

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# Anthropic Took On the Riemann Hypothesis. Here’s What We Found

[Ellie Sleightholm](https://www.youtube.com/@elliesleightholm)

[Ellie Sleightholm](https://www.youtube.com/@elliesleightholm)

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593K views 6 days ago

593,395 views • Sep 27, 2026







Claude Didn’t Solve the Riemann Hypothesis. So What Did It Do?
Get 10% off OutsideIn’s range with code 'ELLIE10' at checkout: [https://www.weareoi.com?sca\_ref=11725...](https://www.youtube.com/redirect?event=video_description&redir_token=QUZZTVljSEFBZEk3WEVodDRSRktHX3ZPZ3VQbnxBSTVJdTVzNWpqb2EtX0xUUnhMaW5rVmNSeS1EUEZiRHVjUTM2NWlMeVhWSzlPUG9sZ1hjSHY2VXBGQVBoZFVkU0xvVGI1bXhYVi1tQ3BJeE5NLXJIMXYtUmdHMFZhRkFFV1Zw&q=https%3A%2F%2Fwww.weareoi.com%2F%3Fsca_ref%3D11725872.7Z91mEpVN0Do1%26sca_source%3DYouTube&v=kvLOiTxYSzA)  …...more

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## Chapters View all

[### AI and the crisis in mathematics

### AI and the crisis in mathematics

0:00](https://www.youtube.com/watch?v=kvLOiTxYSzA&pp=0gcJCSoDDuyUWbzu)

[### AI and the crisis in mathematics](https://www.youtube.com/watch?v=kvLOiTxYSzA&pp=0gcJCSoDDuyUWbzu)

0:00

[### Prime numbers and the prime counting function

### Prime numbers and the prime counting function

1:38](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=98s)

[### Prime numbers and the prime counting function](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=98s)

1:38

[### From the Basel problem to the zeta function

### From the Basel problem to the zeta function

3:24](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=204s)

[### From the Basel problem to the zeta function](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=204s)

3:24

[### Euler’s product: connecting zeta to primes

### Euler’s product: connecting zeta to primes

5:01](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=301s)

[### Euler’s product: connecting zeta to primes](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=301s)

5:01

[### A quick fleece interlude

### A quick fleece interlude

8:12](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=492s)

[### A quick fleece interlude](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=492s)

8:12

[### Riemann’s paper and complex numbers

### Riemann’s paper and complex numbers

9:05](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=545s)

[### Riemann’s paper and complex numbers](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=545s)

9:05

[### Zeros, the critical strip and the Riemann hypothesis

### Zeros, the critical strip and the Riemann hypothesis

12:09](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=729s&pp=0gcJCSoDDuyUWbzu)

[### Zeros, the critical strip and the Riemann hypothesis](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=729s&pp=0gcJCSoDDuyUWbzu)

12:09

[### A history of progress on the critical line

### A history of progress on the critical line

14:18](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=858s)

[### A history of progress on the critical line](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=858s)

14:18

Transcript

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# Anthropic Took On the Riemann Hypothesis. Here’s What We Found

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## In this video

Chapters

Transcript

## Chapters

[### AI and the crisis in mathematics

### AI and the crisis in mathematics

0:00](https://www.youtube.com/watch?v=kvLOiTxYSzA)

[### AI and the crisis in mathematics](https://www.youtube.com/watch?v=kvLOiTxYSzA)

0:00

[### Prime numbers and the prime counting function

### Prime numbers and the prime counting function

1:38](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=98s)

[### Prime numbers and the prime counting function](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=98s)

1:38

[### From the Basel problem to the zeta function

### From the Basel problem to the zeta function

3:24](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=204s)

[### From the Basel problem to the zeta function](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=204s)

3:24

[### Euler’s product: connecting zeta to primes

### Euler’s product: connecting zeta to primes

5:01](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=301s)

[### Euler’s product: connecting zeta to primes](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=301s)

5:01

[### A quick fleece interlude

### A quick fleece interlude

8:12](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=492s&pp=0gcJCSoDDuyUWbzu)

[### A quick fleece interlude](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=492s&pp=0gcJCSoDDuyUWbzu)

8:12

[### Riemann’s paper and complex numbers

### Riemann’s paper and complex numbers

9:05](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=545s)

[### Riemann’s paper and complex numbers](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=545s)

9:05

[### Zeros, the critical strip and the Riemann hypothesis

### Zeros, the critical strip and the Riemann hypothesis

12:09](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=729s)

[### Zeros, the critical strip and the Riemann hypothesis](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=729s)

12:09

[### A history of progress on the critical line

### A history of progress on the critical line

14:18](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=858s)

[### A history of progress on the critical line](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=858s)

14:18

[### What Anthropic actually announced

### What Anthropic actually announced

16:07](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=967s)

[### What Anthropic actually announced](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=967s)

16:07

[### Inside Claude’s team of AI agents

### Inside Claude’s team of AI agents

17:24](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1044s)

[### Inside Claude’s team of AI agents](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1044s)

17:24

[### Failed approaches and a new direction

### Failed approaches and a new direction

19:23](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1163s)

[### Failed approaches and a new direction](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1163s)

19:23

[### The claimed 50% result, and attempts to break it

### The claimed 50% result, and attempts to break it

20:43](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1243s)

[### The claimed 50% result, and attempts to break it](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1243s)

20:43

[### Pushing the bound to 67.25

### Pushing the bound to 67.25

21:39](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1299s)

[### Pushing the bound to 67.25](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1299s)

21:39

[### Checking the proof: AI, mathematicians and Lean

### Checking the proof: AI, mathematicians and Lean

22:54](https://www.youtube.com/watch?v=kvLOiTxYSzA&t=1374s&pp=0gcJCSoDDuyUWbzu)

[### Checking the proof: AI, mathematicia
SammaVaco08
🟧 echo.blog ⭐Anthropic's research post "Learning more about Claude's mathematical capabilities": "Recently, a member of staff at Anthropic gave Claude anAnthropic——
🟠 redditClaude and I beat Claude's previous proof of the proportion of online zeta zeros. It's now 67.348%.
ClaudeAI
Just_Shallot_6755267

Interpretation history

Decision trace