# Paxton AI

> Paxton AI is an all-in-one generative AI assistant built for lawyers. It handles legal research, document drafting, contract review, and mass document analysis across U.S. federal and state law, with a published 94% non-hallucination rate benchmarked against Stanford research. Founded in 2023 by Tanguy Chau and Michael Ulin, the company is based in Palo Alto and has raised $28M total, including a $22M Series A led by Unusual Ventures in January 2025.

- **Founded:** 2023
- **Headquarters:** Palo Alto, California, United States
- **Founders:** Tanguy Chau (Co-Founder & CEO), Michael Ulin (Co-Founder & CTO)
- **Team size:** 26
- **Products:** Legal Research, Drafting, Document Analysis, Contract Review, Medical Billing Extraction
- **Notable:** Reported 94% non-hallucination rate on Stanford-derived legal benchmarks., $28M total funding raised by January 2025., Adopted by firms ranging from solo practitioners to several of the 20 largest U.S. law firms.

## Products & services

- **Legal Research** — Real-time search across U.S. federal and state laws, regulations, and court rulings with cited sources.
- **Drafting** — Quick-start generation of contracts, clauses, emails, and legal documents with authority links.
- **Document Analysis** — Ask questions of long documents and get answers tied to specific source passages.
- **Contract Review** — Identify risk, missing clauses, and inconsistencies across contracts at scale.
- **Medical Billing Extraction** — Consolidates line items and calculates totals to support demand letters and settlements.
- **Knowledge Database** — A firm-specific repository that grounds Paxton's answers in your own materials.

## Achievements

- Reported 94% non-hallucination rate on Stanford-derived legal benchmarks.
- $28M total funding raised by January 2025.
- Adopted by firms ranging from solo practitioners to several of the 20 largest U.S. law firms.
- 14x monthly recurring revenue growth in the nine months preceding the Series A.
- SOC 2 compliant, with ISO and HIPAA alignment.

## Latest updates

- **2025-01** — Raised $22M Series A led by Unusual Ventures, bringing total funding to $28M.
- **2024-07** — Published study reporting a 94% non-hallucination rate on Stanford legal benchmarks.
- **2024** — Closed $6M seed round to expand the legal AI platform.

## Links

- Website: https://paxton.ai
- LinkedIn: https://www.linkedin.com/company/paxtonai
- Twitter/X: https://twitter.com/paxtonai

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Profile page: https://yespress.io/paxton
Published by YesPress — https://yespress.io
Last updated: 2026-06-28