Cajal
Scaling formal verification to accelerate scientific discovery
Cajal operates in b2b based in San Francisco, CA, USA.
Profile
Cajal (YC W26) is massively scaling formal verification to accelerate scientific discovery. We deploy superhuman AI mathematicians to high-impact applied domains, starting with quantum computing and finance.
We do this with Lean - a framework that allows us to formally verify any mathematical statement, grounding AI in truth and validating the tools discovered by our systems.
As a business in b2b, Cajal is listed here with the public details available about it.
The company is recorded as being based in San Francisco, CA, USA.
Directory data places it at the Winter 2026 stage.
Its team size is recorded as 2 employees.
Directory analysis
Cajal is a San Francisco‑based B2B startup that applies formal verification and AI to accelerate scientific discovery, initially targeting quantum computing and finance. The company uses the Lean framework to formally verify mathematical statements, ensuring AI‑generated solutions are provably correct. It aims to scale this approach across high‑impact applied domains.
Positioning: Cajal sits at the intersection of formal methods and AI, offering rigor where mathematical correctness matters. While its niche focus on quantum computing and finance could provide differentiation, its commercial traction is still emerging.
Note: Cajal leverages Lean to deliver provably correct AI mathematicians for high‑impact domains.
Auto-generated directory analysis from public data · updated 7 Oct 2026. Informational only, not investment advice.
| Sector | B2B |
|---|---|
| Headquarters | San Francisco, CA, USA |
| Country | USA |
| Employees | 2 |
| Stage | Winter 2026 |
Website: caj.al
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