Theseus AI

What It Does

Theseus AI (theseusai.com) builds large-language-model and NLP tooling tuned for legal text — extracting precedents, flagging obligations and surfacing conflicts across jurisdictions. The product set includes a legal search layer built over a legal-text database. The company also describes work in domains beyond legal, including health and hardware.

What We Found

Founded in 2019 and based in Santa Monica, California. Crunchbase and CB Insights describe a small team (around 4 employees) and roughly $475K raised, with investors including Surface Ventures, Zero Prime Ventures and Bayes Ventures. The company has partnered with Winnow Solutions on a legal search assistant (Winnow AI). The vendor cites a 97% accuracy figure for its legal-question answering, which we have not independently tested.

What We Haven’t Verified

• The 97% accuracy claim — vendor-stated, not independently tested
• Pricing — not published
• No reviews found on G2, Capterra or similar
• Note: a separate “Theseus AI” (theseus-ai.com, hyphenated) operates in capital-markets meeting intelligence and is a different company