Updated Nov 1, 2026 · 51 new voices in the last 7 days
Which AI do lawyers actually use? They already answered.
Every tool, named by the lawyers who used it. Real posts, dated and linked, scored with how many voices each number rests on.
6,646 voices15 tools rated97 tools in the marketPick a category
“Yes, Westlaw has its own AI and it’s very helpful.”
“It links you to every case so you can read it and ensure accuracy.”
Best AI for contract review?
“He says that ChatGPT has hallucinated cases.”
“All of the above but I am already perfectly comfortable using Westlaw and its search features. Though sometimes I appreciate the suggestions provided by GPT.”
“Harvey and ChatGPT enterprise offer the exact same controls regarding model training. Legora offers WORSE than chatgpt enterprise.”
“Copilot is deceptively expensive, especially Cowork”
“Lollll it loses context mid conversation all the time the user experience is so bad compared to just regular Claude.”
“Legora you can upload 300+ docs at once. Have been playing around with it recently and it’s incredible.”
“Lexis has proprietary content, Shepard, and decades of embedded distribution. That’s an actual moat independent of WL.”
“CoCounsel is horrible. you ask it to do one task and get the document/response and ask same exact action and get something totally different.”
“Yes, Westlaw has its own AI and it’s very helpful.”
“Even CoCounsel and the like halucinates 1 out of 7-10 cases.”
“Spellbook has been very helpful for first round edits/issues lists”
“Main issue with Claude enterprise is the number of documents you can handle at one time. The context window is limited.”
“It links you to every case so you can read it and ensure accuracy.”
“I’ve caught even Lexis’s AI making mistakes.”
“Use a zero data retention system built for legal work (Harvey, CoCounsel, etc) and get client consent before using AI on their matters.”
“Yeah, and the best version of that is Claude’s ZDR. There is no reason to use Harvey and Legora other than lack of AI literacy.”
“Skip using Claude directly and get Perplexity Enterprise Pro account. It gives you Claude, ChatGPT etc and the enterprise ecosystem you need to avoid privilege concerns.”
“CoCounsel is horrible. you ask it to do one task and get the document/response and ask same exact action and get something totally different.”
Updated Nov 1, 2026 · the lawyers’ own words
6,646 lawyer voices. 97 AI tools. One honest ranking.
Reddit, Hacker News, Bluesky: verbatim, dated, linked. Vendors can pay to be seen, never to be rated.
Leading nowClaude+37 net890 voices · High confidence · 60+ voices to qualify6,646 voices15 tools rated97 tools in the marketPick a category
Find the best AI for your work
The leader in each category, how many lawyers it rests on, and how sure we can be. Tap a category for every tool in it.
Legal researchPerplexity+88 net · 17 voicesLowtied with Clio +1DraftingClaude+55 net · 148 voicesMediumtied with Gemini +2Contract reviewClaude+47 net · 66 voicesMediumtied with SpellbookCitation checkingClaude+16 net · 31 voicesLowtied with Lexis+ AI +1DiscoveryClaude+39 net · 18 voicesLowtied with ChatGPT +2SummarizationClaude+59 net · 27 voicesLowtied with Gemini +2Legal agents33products that run a task, not only chat3 run a workflow end to endAI receptionists and intake7tools listed, not rated yet3 with a few voices · too few to scoreContract review and CLM
Luminance−20 net · 10 voicesLow16 tools listedE-discovery8tools listed, not rated yet3 with a few voices · too few to scorePractice management
Clio−13 net · 79 voicesMedium6 tools listedBilling and time capture4tools listed, not rated yet2 with a few voices · too few to scoreFrontier modelsDeepSeek V4.1 Flashnewest of 10 lab flagships · 2026-10-17exact versions, legal benchmark scores
Luminance−20 net · 10 voicesLow16 tools listedE-discovery8tools listed, not rated yet3 with a few voices · too few to scorePractice managementClio−13 net · 79 voicesMedium6 tools listedBilling and time capture4tools listed, not rated yet2 with a few voices · too few to scoreFrontier modelsDeepSeek V4.1 Flashnewest of 10 lab flagships · 2026-10-17exact versions, legal benchmark scoresThe ranking right now
Tools with 10+ voices, ordered by the floor of the 90% band, so a few happy voices cannot outrank hundreds. Net = like minus dislike per 100 voices. Trend = last 90 days against before.
| # | Tool | Net | 90% band | Voices | Confidence | Trend |
|---|---|---|---|---|---|---|
| 1 | Perplexity | +67 | +45 to +81 | 36 | Low | too few |
| 2 | Claude | +37 | +33 to +41 | 890 | High | steady +7 |
| 3 |  | +40 | +27 to +52 | 99 | Medium | steady −11 |
| 4 |  vLex Vincent | +52 | +26 to +71 | 31 | Low | too few |
| 5 | Gemini | +28 | +15 to +39 | 134 | Medium | steady −42 |
| 6 |  | +50 | +9 to +74 | 12 | Low | too few |
| 7 | Westlaw AI | +8 | −1 to +16 | 275 | Medium | rising +33 |
| 8 | CoCounsel | +3 | −4 to +10 | 414 | High | steady +10 |
Back every week: what moved
45 new voices in the last 7 days. All movers → The arena, by task →
- Westlaw AI net +6 → +8 on 7 new voices · #7 · same as last week
- Harvey net −21 → −20 on 5 new voices · #13 · same as last week
- ChatGPT net −13 → −13 on 7 new voices · #11 · same as last week
The voice of the moment
“My firm has Harvey and CoCounsel, and I just use CC bc it has access to Westlaw.”
On r/biglaw · Oct 15, 2026
Says: works at a law firm about CoCounsel
By practice
Latest from the threads
The newest quoted voices, verbatim and newest first. Open a card’s thread to read who else spoke in it.
“You're putting legal charges into the hands of ChatGPT, that still can't tell you how many times a letter appears in a word.”
CriticizesAccuracyUnverified voice
“There are great reasons to need to use copilot in legal work but it's like 1 year behind the state of the art.”
CriticizesAccuracyUnverified voice
“Lawyer for publisher said "you don't, that's illegal." ChatGPT said "here's a hostile takeover plan."”
CriticizesTrust, liabilityUnverified voice
“I worked in legal tech/AI. It's relatively easy to reach the capabilities of Legora and Harvey.”
in “Sorry Harvey! I Made a Free Open-Source Alternative to Your Overpriced Legal AI”
NeutralGeneral useUnverified voice
“When it comes to recognizing patterns like duplicated records, it is BETTER than anyone in my office.”
in “Is anyone actually getting real leverage from AI?” · 14 voices
ValuesAccuracyUnverified voice
13 more voices in this thread
- r/LawFirm · Oct 29, 2026Westlaw AIValues
“We just got Westlaw’s AI. Definitely a time saver.”
open - r/LawFirm · Oct 28, 2026ClioMixed
“Chat-based AI tools like Clio Work are great for pointed, focused questions.”
open - r/LawFirm · Oct 28, 2026ClaudeValues
“It's been a huge timesaver and does the work of another paralegal or associate.”
open - r/LawFirm · Oct 28, 2026ClaudeMixed
“My clients are benefiting from AI but becareful with dumping any PI information into Claude.”
open - r/LawFirm · Oct 28, 2026Westlaw AIValues
“It used to be hit or miss on that front, but it seems to have gotten substantially better in the last year or so.”
open - r/LawFirm · Oct 28, 2026ValuesFirms with dedicated engineers building custom verified workflows get far more from AI than generic tools like Harvey or Legora, cutting a motion response from days to minutes. (summary, not a quote)open
- r/LawFirm · Oct 28, 2026Westlaw AIValues
“Most of the time I find WL AI Deep Research to be superior, especially if you “enhance” with additional facts in response to its questions.”
open - r/LawFirm · Oct 28, 2026ValuesGemini produces good client call summaries and Claude handles brokerage statements better than people, saving the tax team a great deal of work. (summary, not a quote)open
- r/LawFirm · Oct 28, 2026NeutralAI is good at parsing and organizing repetitive material but does not solve everything, and replacement claims have been hype, as with earlier legal software. (summary, not a quote)open
- r/LawFirm · Oct 28, 2026CoCounselCriticizes
“We have co-counsel and I don’t find its research that great.”
open - r/LawFirm · Oct 28, 2026Westlaw AIMixed
“It tends to overwrite the motion and you have to verify all the case cites.”
open - r/LawFirm · Oct 28, 2026CoCounselValues
“Westlaw cocounsel, used for research but never drafting, is the AI tool that gives me the most bang for my buck.”
open - r/LawFirm · Oct 28, 2026ClaudeValues
“The very recent evolution of Claude’s capabilities have essentially provided me with an astute and efficient full time paralegal.”
open
“It will help you enormously in getting your bearings.”
in “I am hating not knowing what the hell I am doing as a brand new attorney”
ValuesTime savedUnverified voice
“It deemed the work I was doing (legal & above-board in every respect) was too close to promoting wagering and therefore would not complete the task.”
CriticizesAccuracyUnverified voice
“As long as an agent can reward hack, trust needs hard gates.”
CriticizesTrust, liabilityUnverified voice
“Harvey can be pretty useful and has all sorts of tailoring done to it to provide utility to legal professionals.”
in “Harvey raised 500M for legal AI, I built the same and open sourced it” · 3 voices
ValuesGeneral useUnverified voice
2 more voices in this thread
- Hacker News · Oct 28, 2026HarveyValues
“Yeah this reeks of never talking to the customers of these legaltech companies - on top of what you mentioned, it's also external integrations and downstream configurability for how those integrations behave.”
open - Hacker News · Oct 28, 2026HarveyCriticizes
“They think Harvey is great and have no clue that all it does is wrap around models and have safety checks like this repo does.”
open
Threads people keep coming back to
Conversations with several voices on the record, the most recently active first.
r/LawFirmOct 28, 2026 to Oct 29, 202614 voices · 9 like · 1 dislike
Is anyone actually getting real leverage from AI?
“We just got Westlaw’s AI. Definitely a time saver.”
Read all 14 voices
- r/LawFirm · Oct 29, 2026Westlaw AIValues
“We just got Westlaw’s AI. Definitely a time saver.”
open - r/LawFirm · Oct 29, 2026ClaudeValues
“When it comes to recognizing patterns like duplicated records, it is BETTER than anyone in my office.”
open - r/LawFirm · Oct 28, 2026ClioMixed
“Chat-based AI tools like Clio Work are great for pointed, focused questions.”
open - r/LawFirm · Oct 28, 2026ClaudeValues
“It's been a huge timesaver and does the work of another paralegal or associate.”
open - r/LawFirm · Oct 28, 2026ClaudeMixed
“My clients are benefiting from AI but becareful with dumping any PI information into Claude.”
open - r/LawFirm · Oct 28, 2026Westlaw AIValues
“It used to be hit or miss on that front, but it seems to have gotten substantially better in the last year or so.”
open - r/LawFirm · Oct 28, 2026ValuesFirms with dedicated engineers building custom verified workflows get far more from AI than generic tools like Harvey or Legora, cutting a motion response from days to minutes. (summary, not a quote)open
- r/LawFirm · Oct 28, 2026Westlaw AIValues
“Most of the time I find WL AI Deep Research to be superior, especially if you “enhance” with additional facts in response to its questions.”
open - r/LawFirm · Oct 28, 2026ValuesGemini produces good client call summaries and Claude handles brokerage statements better than people, saving the tax team a great deal of work. (summary, not a quote)open
- r/LawFirm · Oct 28, 2026NeutralAI is good at parsing and organizing repetitive material but does not solve everything, and replacement claims have been hype, as with earlier legal software. (summary, not a quote)open
- r/LawFirm · Oct 28, 2026CoCounselCriticizes
“We have co-counsel and I don’t find its research that great.”
open - r/LawFirm · Oct 28, 2026Westlaw AIMixed
“It tends to overwrite the motion and you have to verify all the case cites.”
open - r/LawFirm · Oct 28, 2026CoCounselValues
“Westlaw cocounsel, used for research but never drafting, is the AI tool that gives me the most bang for my buck.”
open - r/LawFirm · Oct 28, 2026ClaudeValues
“The very recent evolution of Claude’s capabilities have essentially provided me with an astute and efficient full time paralegal.”
open
r/LawyertalkOct 28, 2026 to Oct 29, 20268 voices · 3 like · 2 dislike
Hypo Time! Does a lawyer violate the RPC or any professional duty by using consumer-grade generative AI?
“Using something like Westlaw’s CoCounsel is different because it’s specifically designed so that the company can’t access the materials (ie designed by lawyers to comply with ethical rules).”
Read all 8 voices
- r/Lawyertalk · Oct 29, 2026NeutralThe author says using AI is not an ethics violation if the privacy policy is checked like any other software, and that legal-specific AI is not inherently safer since it often runs on Claude or ChatGPT. (summary, not a quote)open
- r/Lawyertalk · Oct 28, 2026CoCounselValues
“Using something like Westlaw’s CoCounsel is different because it’s specifically designed so that the company can’t access the materials (ie designed by lawyers to comply with ethical rules).”
open - r/Lawyertalk · Oct 28, 2026CriticizesThe author believes uploading case information to consumer AI without client consent risks breaching confidentiality, waiving privilege and work product protection, and creating a security problem. (summary, not a quote)open
- r/Lawyertalk · Oct 28, 2026ClaudeCriticizes
“Every single prompt put into Claude is potentially being sent to an unknown country in Asia where it is processed unencrypted.”
open - r/Lawyertalk · Oct 28, 2026ValuesThe author uses AI all day, covers it in the engagement letter, and sees it as no different from other cloud tools if the training-sharing option is turned off. (summary, not a quote)open
- r/Lawyertalk · Oct 28, 2026ClaudeNeutral
“At the teams level and above it's off and there's no option to turn it back on.”
open - r/Lawyertalk · Oct 28, 2026ClaudeValues
“My opinion -- I think a teams account is likely "good enough". Claude is better for data privacy than GPT.”
open - r/Lawyertalk · Oct 28, 2026ClaudeNeutral
“Even if they are not using your chats or docs for training, they do retain your data for up to 30 days for compliance and abuse monitoring.”
open
r/LawyertalkOct 28, 20264 voices · 1 like · 0 dislike
AI (Lexis Protege / Claude)
“The teams plan has Anthropic’s Data Processing Agreement.”
Read all 4 voices
- r/Lawyertalk · Oct 28, 2026ClaudeNeutral
“The teams plan has Anthropic’s Data Processing Agreement.”
open - r/Lawyertalk · Oct 28, 2026Lexis+ AINeutralThe author uses Lexis for confidential material under the firm's agreement but uses open Claude only for public-record information. (summary, not a quote)open
- r/Lawyertalk · Oct 28, 2026Lexis+ AIValues
“Protege does not use user data to train models and Lexis has pretty clear policies about that”
open - r/Lawyertalk · Oct 28, 2026ClaudeNeutralThe author says confidential material goes into the Claude behind Westlaw CoCounsel but not into open Claude, though use of AI is now nearly unavoidable. (summary, not a quote)open
Hacker NewsOct 28, 20263 voices · 2 like · 1 dislike
Harvey raised 500M for legal AI, I built the same and open sourced it
“Yeah this reeks of never talking to the customers of these legaltech companies - on top of what you mentioned, it's also external integrations and downstream configurability for how those integrations behave.”
Read all 3 voices
- Hacker News · Oct 28, 2026HarveyValues
“Yeah this reeks of never talking to the customers of these legaltech companies - on top of what you mentioned, it's also external integrations and downstream configurability for how those integrations behave.”
open - Hacker News · Oct 28, 2026HarveyCriticizes
“They think Harvey is great and have no clue that all it does is wrap around models and have safety checks like this repo does.”
open - Hacker News · Oct 28, 2026HarveyValues
“Harvey can be pretty useful and has all sorts of tailoring done to it to provide utility to legal professionals.”
open
Talked about lately
Voices in the last 90 days, by tool.
- Claude252 voices146 like · 40 dislike · latest Oct 30, 2026
- Harvey173 voices49 like · 74 dislike · latest Oct 29, 2026
- ChatGPT148 voices46 like · 76 dislike · latest Oct 30, 2026
- CoCounsel54 voices20 like · 14 dislike · latest Oct 28, 2026
- Legora30 voices16 like · 12 dislike · latest Oct 28, 2026
- Westlaw AI27 voices16 like · 6 dislike · latest Oct 29, 2026
- Copilot22 voices8 like · 7 dislike · latest Oct 30, 2026
- Lexis+ AI21 voices5 like · 11 dislike · latest Oct 28, 2026
The numbers behind the talk
Like minus dislike, as a share of each tool’s voices, with how sure we can be (90% band). Shown for tools with 10+ voices.
Perplexity n=36+67
Claude n=890+37
Spellbook n=99+40
vLex Vincent n=31+52
Gemini n=134+28
Paxton n=12+50
Westlaw AI n=275+8
CoCounsel n=414+3
Copilot n=156+4
Legora n=102+5
ChatGPT n=2473−13
Lexis+ AI n=296−14
Harvey n=764−20
Clio n=79−13
Luminance n=10−20
−100 all dislike0all like +100
- Gemini leans down, not confirmed. Last 90 days −12 (8 voices) vs +30 before; the band on the change (−87 to +8) still crosses zero.
- Lexis+ AI leans down, not confirmed. Last 90 days −29 (21 voices) vs −13 before; the band on the change (−42 to +15) still crosses zero.
Volume is not a verdict
Share of voice and rates per 100 voices, tools with 10+ voices. By model and version →
ChatGPT has the most dislike voices in raw numbers (1166) because it has the most voices of any kind (42.9% of all voices on named tools). Per 100 voices, the highest dislike rate among tools with 10+ voices is Luminance (50 per 100). Rates and bands compare; totals don’t.
| Tool | Voices | Share of voice 90% band | Confidence | Dislike, count | Dislike per 100 | Like per 100 | Net 90% band |
|---|---|---|---|---|---|---|---|
| ChatGPT | 2473 | 42.9% 41.8–43.9 | High | 1166 | 47 | 34 | −13 −16 to −11 |
| Claude | 890 | 15.4% 14.7–16.2 | High | 172 | 19 | 56 | +37 +33 to +41 |
| Harvey | 764 | 13.2% 12.5–14.0 | High | 364 | 48 | 27 | −20 −25 to −15 |
| CoCounsel | 414 | 7.2% 6.6–7.7 | High | 143 | 35 | 37 | +3 −4 to +10 |
| Lexis+ AI | 296 | 5.1% 4.7–5.6 | Medium | 136 | 46 | 32 | −14 −22 to −5 |
| Westlaw AI | 275 | 4.8% 4.3–5.3 | Medium | 91 | 33 | 41 | +8 −1 to +16 |
| Copilot | 156 | 2.7% 2.4–3.1 | Medium | 55 | 35 | 39 | +4 −8 to +15 |
| Gemini | 134 | 2.3% 2.0–2.7 | Medium | 36 | 27 | 54 | +28 +15 to +39 |
| Legora | 102 | 1.8% 1.5–2.1 | Medium | 37 | 36 | 41 | +5 −9 to +19 |
| Spellbook | 99 | 1.7% 1.5–2.0 | Medium | 18 | 18 | 59 | +40 +27 to +52 |
| Clio | 79 | 1.4% 1.1–1.6 | Medium | 34 | 43 | 30 | −13 −28 to +3 |
| Perplexity | 36 | 0.6% 0.5–0.8 | Low | 4 | 11 | 78 | +67 +45 to +81 |
| vLex Vincent | 31 | 0.5% 0.4–0.7 | Low | 6 | 19 | 71 | +52 +26 to +71 |
| Paxton | 12 | 0.2% 0.1–0.3 | Low | 2 | 17 | 67 | +50 +9 to +74 |
| Luminance | 10 | 0.2% 0.1–0.3 | Low | 5 | 50 | 30 | −20 −56 to +25 |
Every tool on the record
Official marks, sourced and logged. Tap one to read what lawyers say about it.