Brandwave

AI legal assistants:Which brands are most popular in search?

In August 2026, Harvey was the most searched among AI legal assistants worldwide, with an estimated 110K branded searches and 57.6% estimated Share of Search within this set. These are worldwide searches for English-language branded terms.

Share of Search, August 2026
  1. Harvey57.6%
  2. LegalOn25.9%
  3. Spellbook9.5%
  4. DoNotPay5.2%
  5. Robin AI1.9%

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Share of SearchLeaderboard

Compare the AI tools used for legal research and drafting. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

Share of Search among AI legal assistants worldwide, by month

Share of Search by month for Harvey, LegalOn, Spellbook, DoNotPay. The figures are in the table below the chart.

View monthly share of search table
MonthHarveyLegalOnSpellbookDoNotPayRobin AI
Oct 202541.4%33.9%12.4%5.5%6.8%
Nov 202540.3%33%12.1%6.6%8.1%
Dec 202541.9%34.3%12.5%5.6%5.6%
Jan 202637.9%37.9%13.9%6.2%4.1%
Feb 202650.4%27.5%12.4%6.7%3%
Mar 202651.7%28.4%12.7%4.7%2.5%
Apr 202655.2%24.8%11.1%6.1%2.7%
May 202655.2%24.8%11.1%6.1%2.7%
Jun 202657%25.7%9.4%5.1%2.8%
Jul 202657.3%25.8%9.4%5.2%2.3%
Aug 202657.6%25.9%9.5%5.2%1.9%
Sep 2026—————

This month’s ranking, August 2026

  1. 1.Harvey

    57.6%

    Held 1st. 110K estimated branded searches, 0% vs prior month. Share +0.2 points.

  2. 2.LegalOn

    25.9%

    Held 2nd. 49.5K estimated branded searches, 0% vs prior month. Share +0.1 points.

  3. 3.Spellbook

    9.5%

    Held 3rd. 18.1K estimated branded searches, 0% vs prior month. Share 0 points.

  4. 4.DoNotPay

    5.2%

    Held 4th. 9.9K estimated branded searches, 0% vs prior month. Share 0 points.

  5. 5.Robin AI

    1.9%

    Held 5th. 3.6K estimated branded searches, -18.2% vs prior month. Share -0.4 points.

Compare search popularity between leading brands

Which brand is most popular in search among AI legal assistants worldwide?

In August 2026, Harvey was the most searched among AI legal assistants worldwide, with an estimated 110K branded searches and 57.6% estimated Share of Search within this set. LegalOn is in 2nd place, 31.7 percentage points behind at 25.9% Share of Search.

Global AI legal assistants, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
Harvey41.4% → 57.6%57.6%Aug 202637.9%Jan 20261st
LegalOn33.9% → 25.9%37.9%Jan 202624.8%Apr 20262nd
Spellbook12.4% → 9.5%13.9%Jan 20269.4%Jun 20263rd
DoNotPay5.5% → 5.2%6.7%Feb 20264.7%Mar 20265th → 4th
Robin AI6.8% → 1.9%8.1%Nov 20251.9%Aug 20264th → 5th

Each finding as a sentence

  • Across the 11 months ending August 2026, Harvey’s estimated Share of Search among AI legal assistants worldwide increased from 41.4% to 57.6%.
  • Across the 11 months ending August 2026, LegalOn’s estimated Share of Search among AI legal assistants worldwide decreased from 33.9% to 25.9%.
  • Across the 11 months ending August 2026, Spellbook’s estimated Share of Search among AI legal assistants worldwide decreased from 12.4% to 9.5%.
  • Across the 11 months ending August 2026, Robin AI’s estimated Share of Search among AI legal assistants worldwide decreased from 6.8% to 1.9%.
  • Across the 11 months ending August 2026, Harvey’s estimated Share of Search among AI legal assistants worldwide peaked at 57.6% in August 2026 and was lowest at 37.9% in January 2026.
  • Across the 11 months ending August 2026, LegalOn’s estimated Share of Search among AI legal assistants worldwide peaked at 37.9% in January 2026 and was lowest at 24.8% in April 2026.
  • Across the 11 months ending August 2026, Spellbook’s estimated Share of Search among AI legal assistants worldwide peaked at 13.9% in January 2026 and was lowest at 9.4% in June 2026.
  • Across the 11 months ending August 2026, DoNotPay’s estimated Share of Search among AI legal assistants worldwide peaked at 6.7% in February 2026 and was lowest at 4.7% in March 2026.
  • Across the 11 months ending August 2026, Robin AI’s estimated Share of Search among AI legal assistants worldwide peaked at 8.1% in November 2025 and was lowest at 1.9% in August 2026.
  • Across the 11 months ending August 2026, DoNotPay rose from 5th to 4th among AI legal assistants worldwide.
  • Across the 11 months ending August 2026, Robin AI fell from 4th to 5th among AI legal assistants worldwide.

How did search popularity change for AI legal assistants worldwide in August 2026?

  1. Harvey’s estimated Share of Search among AI legal assistants worldwide has gained ground for 3 months in a row, from 55.2% to 57.6% in August 2026.

  2. LegalOn’s estimated Share of Search among AI legal assistants worldwide has gained ground for 3 months in a row, from 24.8% to 25.9% in August 2026.

  3. Estimated monthly branded searches for Robin AI worldwide fell 70.2% over 11 measured months, from 12.1K to 3.6K in August 2026.

  4. Estimated monthly branded searches for Spellbook worldwide fell 18.5% over 11 measured months, from 22.2K to 18.1K in August 2026.

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