Tag: grok-4-5

All the articles with the tag "grok-4-5".

• AI Signals

  Grok 4.5 Found a Candidate Counterexample on the 4-Sphere. What Is Actually Verified

  13 Jul, 2026

  A researcher says Grok 4.5 closed a five-year gap in spherical hypercontractivity. The explicit example looks promising, but review is still underway.