Spellbook
Spellbook is an AI contract review and drafting tool for transactional lawyers that works inside Microsoft Word.
Cortical.io vs Spellbook
At a Glance
| Detail | Cortical.io | Spellbook |
|---|---|---|
| Category | GenAI & Drafting | GenAI & Drafting |
| Total raised | $6M | $81.5M |
| Rounds tracked | 1 | 4 |
| Latest round | Series A, $6M · Sep 2021 | Series B, $50M · Oct 2025 |
| Last valuation | Not disclosed | $350M |
| Lead investors | Not disclosed | Khosla Ventures, Inovia Capital, Moxxie Ventures |
| Built for | Not disclosed | Mid-size firms, Boutiques |
| Headquarters | Austria | Canada |
Funding, Side by Side
Cortical.io rounds
- Sep 2021Series A$6M
Spellbook rounds
- Oct 2025Series B$50M
- Jan 2024Series A$20M
- May 2023Undisclosed$10.9M
- Dec 2019Pre-Seed$567K
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, Cortical.io or Spellbook?
- Spellbook has raised $81.5M in disclosed funding, compared with $6M for Cortical.io.
- What is Cortical.io best for?
- NLP contract intelligence.
- What is Spellbook best for?
- Spellbook is an AI contract review and drafting tool for transactional lawyers that works inside Microsoft Word.
Source: Legal Tech Circle funding data, from public announcements. Updated November 12, 2026.