Clearbrief
Clearbrief is an AI writing tool for lawyers that checks and cites the evidence behind legal briefs.
Clearbrief vs Luminance
At a Glance
| Detail | Clearbrief | Luminance |
|---|---|---|
| Category | GenAI & Drafting | GenAI & Drafting |
| Total raised | $4M | $138M |
| Rounds tracked | 2 | 5 |
| Latest round | Seed, $4M · Jun 2024 | Series C, $75M · Feb 2025 |
| Last valuation | Not disclosed | $100M |
| Lead investors | Authentic Ventures, How Women Invest, Reign Ventures | Point72 Private Investments, March Capital, Invoke Capital, Talis Capital |
| Built for | Not disclosed | In-house teams, Large firms |
| Headquarters | US | United Kingdom |
Funding, Side by Side
Clearbrief rounds
- Jun 2024Seed$4M
- Aug 2021SeedUndisclosed
Luminance rounds
- Feb 2025Series C$75M
- Apr 2024Series B$40M
- Feb 2019Series B$10M
- Nov 2017Series A$10M
- Sep 2016Seed$3M
Our Take
We have not tested these two head to head yet. The numbers above come from public funding announcements. If you use either one, tell us what you found and it may become a Field Note.
Quick Answers
- Which has raised more, Clearbrief or Luminance?
- Luminance has raised $138M in disclosed funding, compared with $4M for Clearbrief.
- Do Clearbrief and Luminance share investors?
- No. None of the investors we track have backed both companies.
- What is Clearbrief best for?
- Clearbrief is an AI writing tool for lawyers that checks and cites the evidence behind legal briefs.
- What is Luminance best for?
- Luminance is an AI contract platform for reviewing, negotiating and analyzing contracts.
Source: Legal Tech Circle funding data, from public announcements. Updated November 12, 2026.