# What AI does Exa use?

Exa uses 6 AI tools on usedby: 5 confirmed, 1 observed and 0 signals. Tools: Amplemarket, Cognition, LanceDB, Patronus AI, Zilliz and LangSmith. Latest check 2026-10-07: 6 of 6 public lines checked.

- Website: [exa.ai](https://exa.ai)
- Public sources: 12

## 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 |
|---|---|---|---|---|
| [Amplemarket](https://www.usedby.ai/tools/amplemarket.md) | Cold Email & Outreach | Confirmed | — | [amplemarket.com](https://www.amplemarket.com/pricing), captured 2026-10-07 |
| [Cognition](https://www.usedby.ai/tools/cognition.md) | Autonomous Coding Agents | Confirmed | — | [cognition.com](https://cognition.com/), captured 2026-10-05 |
| [LanceDB](https://www.usedby.ai/tools/lancedb.md) | Vector Databases | Confirmed | — | [lancedb.com](https://www.lancedb.com/customers), captured 2026-10-06 |
| [Patronus AI](https://www.usedby.ai/tools/patronus-ai.md) | ML Ops & Training | Confirmed | — | [patronus.ai](https://www.patronus.ai/case-studies), captured 2026-10-06 |
| [Zilliz](https://www.usedby.ai/tools/zilliz.md) | Vector Databases | Confirmed | — | [zilliz.com](https://zilliz.com/customers/exa), captured 2026-10-06 |
| [LangSmith](https://www.usedby.ai/tools/langsmith.md) | LLM Ops & Frameworks | Observed | — | [langchain.com](https://www.langchain.com/langsmith/observability), captured 2026-10-03 |

## Published results

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

- [Zilliz](https://www.usedby.ai/case-studies/exa-zilliz.md): **\<200ms** Neural search latency with Exa Instant, reduced (Vendor case study, captured by usedby 2026-10-06)

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