How popular isCoCounsel?
In September 2026, people searched for CoCounsel by name about 19,700 times worldwide, a 53.7% increase from the previous year. These searches made up 7.7% of all global AI legal assistant searches, placing CoCounsel fourth out of seven assistants. When we asked both ChatGPT and Google AI Overviews about AI legal assistants, CoCounsel appeared in all answers and was the most recommended of the seven.
CoCounsel is the fourth most searched of 7 competitors and the most recommended in AI answers.
HarveyShare of searches 52.8%Mentioned in 4 of 5 AI answersPlace in AI recommendations 3rd
LegalOnShare of searches 19.4%Mentioned in 1 of 5 AI answersPlace in AI recommendations 5th
SpellbookShare of searches 8.7%Mentioned in 1 of 5 AI answersPlace in AI recommendations 4th
CoCounselShare of searches 7.7%Mentioned in 5 of 5 AI answersPlace in AI recommendations 1st
Lexis+ AIShare of searches 6.5%Mentioned in 5 of 5 AI answersPlace in AI recommendations 2nd
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Top AI legal assistants in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, CoCounsel appeared in all five answers. CoCounsel is the most recommended of the seven.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
CoCounsel5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Lexis+ AI5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Harvey4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
LegalOn1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Spellbook1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
DoNotPay0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Robin AI0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about AI legal assistants
5 answers
Asked ChatGPT
“Which AI legal assistant should I use?”
Asked ChatGPT
“What are the best AI legal assistants?”
Asked ChatGPT
“What's the best AI legal assistant for legal research?”
Searched Google, AI Overview
“ai legal assistant”
Searched Google, AI Overview
“legal research ai”
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Which AI legal assistants compete with CoCounsel?
Share of searches by month for Harvey, LegalOn, Spellbook, CoCounsel, Lexis+ AI, DoNotPay. The figures are in the table below the chart.
View monthly share of searches table
| Month | Harvey | LegalOn | Spellbook | CoCounsel | Lexis+ AI | DoNotPay | Robin AI |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 34.9% | 28.5% | 10.5% | 6% | 9.9% | 3.8% | 6.5% |
| Nov 2025 | 33.8% | 27.7% | 10.1% | 7.3% | 9.3% | 4.5% | 7.3% |
| Dec 2025 | 36.5% | 29.9% | 10.9% | 6.5% | 6.9% | 4% | 5.3% |
| Jan 2026 | 32.9% | 32.9% | 12.1% | 7.1% | 7.6% | 3.6% | 3.9% |
| Feb 2026 | 42.8% | 23.4% | 10.5% | 7.6% | 8.1% | 4.7% | 2.8% |
| Mar 2026 | 43.6% | 24% | 10.7% | 7.6% | 8.6% | 3.2% | 2.3% |
| Apr 2026 | 47.3% | 21.3% | 9.6% | 6.8% | 8.3% | 4.3% | 2.5% |
| May 2026 | 47.7% | 21.5% | 9.6% | 7.2% | 7.2% | 4.3% | 2.5% |
| Jun 2026 | 48.9% | 22% | 8% | 7.2% | 7.8% | 3.6% | 2.5% |
| Jul 2026 | 49.6% | 22.3% | 8.2% | 7.3% | 6.9% | 3.7% | 2.1% |
| Aug 2026 | 49.7% | 22.4% | 8.2% | 7.4% | 6.9% | 3.7% | 1.7% |
| Sep 2026 | 52.8% | 19.4% | 8.7% | 7.7% | 6.5% | 3.2% | 1.8% |
| Rank | Brand | Share of searches | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 52.8% | 135K | +22.7% | +3.1 points | |
| 2, held 2nd | 19.4% | 49.5K | 0% | -3 points | |
| 3, held 3rd | 8.7% | 22.2K | +22.7% | +0.5 points | |
| 4, held 4th | 7.7% | 19.7K | +20.1% | +0.3 points | |
| 5, held 5th | 6.5% | 16.5K | +7.8% | -0.5 points | |
| 6, held 6th | 3.2% | 8.1K | 0% | -0.5 points | |
| 7, held 7th | 1.8% | 4.7K | +22.3% | +0.1 points |
1.
Harvey52.8%
Held 1st. 135K estimated branded searches, +22.7% vs prior month. Share +3.1 points.
2.
LegalOn19.4%
Held 2nd. 49.5K estimated branded searches, 0% vs prior month. Share -3 points.
8.7%
Held 3rd. 22.2K estimated branded searches, +22.7% vs prior month. Share +0.5 points.
7.7%
Held 4th. 19.7K estimated branded searches, +20.1% vs prior month. Share +0.3 points.
6.5%
Held 5th. 16.5K estimated branded searches, +7.8% vs prior month. Share -0.5 points.
6.
DoNotPay3.2%
Held 6th. 8.1K estimated branded searches, 0% vs prior month. Share -0.5 points.
7.
Robin AI1.8%
Held 7th. 4.7K estimated branded searches, +22.3% vs prior month. Share +0.1 points.
Compare popularity between CoCounsel and its closest rivals
Every comparison with CoCounsel
14 comparisons
How has branded search demand for CoCounsel changed worldwide over the last 12 months?
3 findings
- Across the 12 months ending September 2026, estimated monthly branded searches for CoCounsel worldwide rose from 12.8K to 19.7K.
- Across the 12 months ending September 2026, CoCounsel’s share of searches among AI legal assistants worldwide increased from 6% to 7.7%.
- Across the 12 months ending September 2026, CoCounsel rose from 6th to 4th among AI legal assistants worldwide.
How did search popularity change for AI legal assistants worldwide in September 2026?
6 changes

In September 2026, Harvey gained share of searches among AI legal assistants worldwide, from 49.7% to 52.8%.

In September 2026, Spellbook gained share of searches among AI legal assistants worldwide, from 8.2% to 8.7%.

In September 2026, LegalOn lost share of searches among AI legal assistants worldwide, from 22.4% to 19.4%.

CoCounsel’s share of searches among AI legal assistants worldwide has gained ground for 3 months in a row, from 7.2% to 7.7% in September 2026.

Estimated monthly branded searches for Robin AI worldwide fell 65.5% over 12 measured months, from 13.7K to 4.7K in September 2026.

Estimated monthly branded searches for Lexis+ AI worldwide fell 21.4% over 12 measured months, from 21K to 16.5K in September 2026.
How are CoCounsel’s branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using CoCounsel’s name. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brand is growing, holding steady, or fading.
- cocounsel
- cocounsel legal
Who owns CoCounsel?
CoCounsel is owned by
Thomson Reuters. Brandwave also tracks Thomson Reuters, owned by the same company, worldwide.
Do you work for CoCounsel? To request corrections or removal please contact us via our support page and we will be happy to assist.
Where does CoCounsel compete?
| Competitor set | Rank | Share of searches | Ranking |
|---|---|---|---|
| Legal tech | 4th of 10 | 6.2% | Show ranking |
| AI legal assistants | 4th of 7 | 7.7% | Shown above |

Is CoCounsel your brand?
Put your own campaigns, spend and outcomes next to this demand line, so you can see which of your marketing lined up with the movements above.