# What AI does Mercor use?

Mercor uses 10 AI tools on usedby: 3 confirmed, 7 observed and 0 signals. Tools: Hex, Reducto, Serval, Baseten, Cognition, Langchain, LangSmith and Retell AI and 2 others. Latest check 2026-10-08: 9 of 10 public lines checked.

- Industry: [HR & Recruiting](https://www.usedby.ai/companies/industry/hr-recruiting-hr-tech.md)
- Website: [mercor.com](https://mercor.com)
- Public sources: 18

## 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 |
|---|---|---|---|---|
| [Hex](https://www.usedby.ai/tools/hex.md) | Data Cloud & Analytics | Confirmed | — | [hex.tech](https://hex.tech/customers/mercor/), captured 2026-10-06 |
| [Reducto](https://www.usedby.ai/tools/reducto.md) | Document & Process Intelligence | Confirmed | — | [reducto.ai](https://reducto.ai/customers), captured 2026-10-08 |
| [Serval](https://www.usedby.ai/tools/serval.md) | IT Service Management | Confirmed | — | [serval.com](https://www.serval.com/customers/mercor), captured 2026-10-07 |
| [Baseten](https://www.usedby.ai/tools/baseten.md) | LLM Inference | Observed | — | [baseten.co](https://www.baseten.co/pricing/), captured 2026-10-05 |
| [Cognition](https://www.usedby.ai/tools/cognition.md) | Autonomous Coding Agents | Observed | — | [cognition.com](https://cognition.com/), captured 2026-10-05 |
| [Langchain](https://www.usedby.ai/tools/langchain.md) | LLM Ops & Frameworks | Observed | — | [langchain.com](https://www.langchain.com/), captured 2026-10-03 |
| [LangSmith](https://www.usedby.ai/tools/langsmith.md) | LLM Ops & Frameworks | Observed | — | [langchain.com](https://www.langchain.com/langsmith/observability), captured 2026-10-03 |
| [Retell AI](https://www.usedby.ai/tools/retell-ai.md) | AI Phone Agents | Observed | — | [retellai.com](https://www.retellai.com/customers), captured 2026-10-05 |
| [Rillet](https://www.usedby.ai/tools/rillet.md) | Finance & Accounting AI | Observed | — | [rillet.com](https://www.rillet.com/), captured 2026-10-08 |
| [Tavus](https://www.usedby.ai/tools/tavus.md) | Video Generation & Editing | Observed | — | [tavus.io](https://www.tavus.io) |

## Published results

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

- [Serval](https://www.usedby.ai/case-studies/mercor-serval.md): **\>4000** contractors onboarded (Vendor case study, captured by usedby 2026-10-07)
- [Hex](https://www.usedby.ai/case-studies/mercor-hex.md): **$100M** revenue unlocked in one year (Vendor case study, published 2026-02-18)

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