# What AI does Yahoo use?

Yahoo uses 2 AI tools on usedby: 2 confirmed, 0 observed and 0 signals. Tools: SentinelOne and Vespa. Latest check 2026-10-07: 2 of 2 public lines checked.

- Website: [yahoo.com](https://yahoo.com)
- Public sources: 4

## 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). The first public proof is not an adoption date.

| Tool | Category | Proof | First public proof | Source |
|---|---|---|---|---|
| [SentinelOne](https://www.usedby.ai/tools/sentinelone.md) | AI Cyber Defense | Confirmed | — | [sentinelone.com](https://www.sentinelone.com/customers/yahoo/#cq=i1), captured 2026-10-05 |
| [Vespa](https://www.usedby.ai/tools/vespa.md) | Vector Databases | Confirmed | — | [vespa.ai](https://vespa.ai/case-studies/), captured 2026-10-07 |

## Published results

Reviewed stories only. A figure is quoted with its label; usedby did not measure it.

- [SentinelOne](https://www.usedby.ai/case-studies/yahoo-sentinelone.md): **400,000** Endpoints transitioned to SentinelOne in about (Vendor case study, published 2026-04-22)

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