# What AI does CERN use?

CERN uses 2 AI tools on usedby: 1 confirmed, 1 observed and 0 signals. Tools: Sourcegraph and Sonar. Latest check 2026-10-19: 2 of 2 public lines checked.

- Website: [home.cern](https://home.cern)
- Public sources: 2

## AI tools

Each line links to the public page that shows the company with the tool. Every line is a customer, at one of three proof levels: confirmed (a case study, a named quote or a press release), observed (the vendor shows the company on its own pages) or signal (a job post shows the company's employees use the tool, the weakest proof). A line the company declared to usedby itself is marked declared. The first public proof is not an adoption date.

| Tool | Category | Proof | First public proof | Source |
|---|---|---|---|---|
| [Sourcegraph](https://www.usedby.ai/tools/sourcegraph.md) | AI coding assistants & agents | Confirmed | On or before October 2026 | [sourcegraph.com](https://sourcegraph.com/case-studies/cern-reduces-technical-debt), captured 2026-10-19 |
| [Sonar](https://www.usedby.ai/tools/sonar.md) | Code review & testing | Observed | — | [sonarsource.com](https://www.sonarsource.com/company/customers/), captured 2026-10-17 |

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Source: https://www.usedby.ai/companies/cern · How we check: https://www.usedby.ai/methodology