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Claude vs ChatGPT vs Gemini for lawyers: what lawyers say.

Claude

+37

net · band +33 to +41

872 voices High

ChatGPT

−13

net · band −16 to −10

2,467 voices High

Gemini

+28

net · band +15 to +39

134 voices Medium

Pair by pair, on this record
  • Claude ahead of ChatGPT: the two 90% bands do not overlap.
  • Claude and Gemini: the two 90% bands overlap, so net sentiment cannot tell them apart.
  • Gemini ahead of ChatGPT: the two 90% bands do not overlap.

872 voices on Claude, 2,467 voices on ChatGPT and 134 on Gemini, all public posts by lawyers and people who work with them, since 2023. This is how they describe using each tool, not a test of the tools. One page for the three, instead of three two-way pages: the pairs are linked below.

Side by side

Rates and bands, not raw totals.

ClaudeChatGPTGemini
Voices on record8722,467134
Like · mixed · dislike492 · 103 · 169832 · 321 · 1,16273 · 18 · 36
Net like minus dislike, % of voices+37 90% band +33 to +41−13 90% band −16 to −10+28 90% band +15 to +39
ConfidenceHighHighMedium
Per 100 voices: like · dislike · name hallucinations56 · 19 · 634 · 47 · 2754 · 27 · 20
Latest voice

By task

What they were doing when they posted.

TaskClaudeChatGPTGemini
Legal research82 voices · net +41623 voices · net −3431 voices · net +42
Drafting141 voices · net +57573 voices · net +2227 voices · net +48
Contract review65 voices · net +4657 voices · net −113 voices, too few for a net
Citation checking31 voices · net +16157 voices · net −699 voices · net −56
Discovery17 voices · net +3532 voices · net +92 voices, too few for a net
Summarization27 voices · net +59114 voices · net +511 voices · net +36
General use455 voices · net +28790 voices · net −1845 voices · net +11

Net here is plain like minus dislike as a share of that task’s voices, with no band: a task needs 5+ voices on a side to show one. Tasks with fewer on every side are left out. A voice has one task, set by our classifier.

In their own words

Each quote is a verbatim span of a counted voice, with its date and a link to the original.

On Claude · verbatim

r/legaltech
“After test driving Harvey, the Lexus AI product, Chat, and Claude, we ended up going with a Claude team plan and keeping our Westlaw classic subscription (pretty cheap for our small law firm).”
ValuesBuying decisionSays: works at a law firm
23 more voices in this thread
  • r/legaltech · Jul 24, 2026ClaudeNeutral“Zero Data Retention (ZDR) is Enterprise-only, not available on Team.”open
  • r/legaltech · Jul 23, 2026ClaudeCriticizes“If you're using Fable, your data is being retained for 30 days for abuse monitoring.”open
  • r/legaltech · Jul 14, 2026ClaudeNeutralShares a session closeout log template used with Claude to record files accessed, deletion of temporary files and confirmation that no external tools were used on privileged matters. (summary, not a quote)open
  • r/legaltech · Jul 14, 2026ClaudeNeutral“Yeah, we require turning Claude memory off to prevent cross-matter contamination.”open
  • r/legaltech · Jul 13, 2026ClaudeValues“We are using Claude Team and very happy with it.”open
  • r/legaltech · Jul 13, 2026ClaudeCriticizes“Done start your legal research with Claude. You'll get hallucinations and if even one ends up in the brief you file then you're in hot water.”open
  • r/legaltech · Jul 13, 2026ClaudeMixed“I would agree with sentiments, teams is a step up but Enterprise is where it’s proper enterprise grade.”open
  • r/legaltech · Jul 12, 2026ClaudeNeutral“Team and Enterprise run under Anthropic's Commercial Terms, no training by default.”open
  • r/legaltech · Jul 12, 2026PerplexityNeutral“Perplexity Enterprise Pro is $40 a seat, includes tokens, and is enterprise level with ZDR, audit trail, etc.”open
  • r/legaltech · Jul 12, 2026CoCounselMixed“The first version was sub par to be perfectly honest but early feedback of their new version is very positive.”open
  • r/legaltech · Jul 12, 2026ClaudeNeutral“Claude Team doesn't train on your data, but client info is still being transmitted to Anthropic's servers, you're relying on their security, not your own.”open
  • r/legaltech · Jul 11, 2026CoCounselValues“Just get CoCounsel. You’re over thinking trying to mix and match to save a few bucks.”open
  • r/legaltech · Jul 11, 2026ClaudeMixed“Bottom line: the Team plan is a big step up from the wild-west alternative, but I'd treat the ZDR/Enterprise terms as the actual privilege boundary, not the Team UI setting.”open
  • r/legaltech · Jul 11, 2026ChatGPTCriticizes“From the compliance side, it's a headache. It was too much of a footgun with a ZDR + new model = non-compliant.”open
  • r/legaltech · Jul 11, 2026CoCounselNeutral“We are using Eve and CoCounsel with Westlaw to avoid that right now while I build out some automation with Claude but my goal is to do essentially what you're doing and tie Claude to CoCounsel to be able to do everything in one place.”open
  • r/legaltech · Jul 11, 2026ClaudeValues“When you crank it up to opus level extra it actually does this very well.”open
  • r/legaltech · Jul 11, 2026PerplexityValues“I would use Perplexity Enterprise Pro- only $40 a seat and get the benefits of Claude Opus 8 and ChatGPT with a ZDR, audit trail, etc.”open
  • r/legaltech · Jul 11, 2026ClaudeCriticizes“Ultimately, they are warning that if you use any other tier (at this moment) that doesn't include ZDR or is a tenant solution that includes such, then your confidential information can be read by their employees in that 30-day hold.”open
  • r/legaltech · Jul 11, 2026ClaudeCriticizes“Anthropic states that you don't have confidentiality unless you use ZDR or a tenant solution that provides for confidentiality.”open
  • r/legaltech · Jul 11, 2026ClaudeValues“It shines in analyzing long AIA construction docs and summarizing them or editing them within co-work.”open
  • r/legaltech · Jul 11, 2026ClaudeMixed“I allow claude access to my emails for admin support and select documents I feed it to prepare stuff I want it to prepare, then I finish up the work myself since its not able to prepare final work product to my liking anyway.”open
  • r/legaltech · Jul 11, 2026ClaudeCriticizes“Claude Teams provides no facility for you to do an ediscovery of your firm’s usage of Claude.”open
  • r/legaltech · Jul 11, 2026ClaudeNeutral“If you have to do any sort of discovery or production of prompts and/or responses in Claude, Team won’t allow you to do so.”open
Hacker News
“As a lawyer, Claude 4 is the best writer, and usually, but not always, the leader in legal reasoning.”

in “Gemini-2.5-pro-preview-06-05”

ValuesDraftingSelf-described lawyer

On ChatGPT · verbatim

Bl
Bluesky · bsky.app
“Orally must admit, impressive.”
ValuesGeneral useUnverified voice
Hacker News
“[...] my friend has said it has just made up case law that isn't real.”

in “The Anthropic Economic Index” · 2 voices

MixedHallucinationSecond-hand report
1 more voice in this thread
  • Hacker News · Feb 10, 2025ChatGPTCriticizes“Part of it is selection bias, Claude is much less general-audiences than ChatGPT. But any lawyers using LLMs in 2025 deserve to be disbarred”open

On Gemini · verbatim

Hacker News
“Considering Opus 5.5 only gets a 4% on the test compared to Gemini’s 20%, that’s actually pretty incredible.”

in “Gemini 4 Argon” · 2 voices

ValuesAccuracyUnverified voice
1 more voice in this thread
  • Hacker News · Sep 30, 2026GeminiValues“The ~200% improvement over the next nearest competitor on Harvey's Legal Benchmark is astounding.”open
r/legaltech
“Will be interesting to see how their model performs, we are finding real world ambiguity with Gemini pro 2.5.”

in “Harvey Launches Its First In-House Legal Model — Built on Moonshot’s Kimi K3, Not GPT or Claude”

CriticizesAccuracyUnverified voice

Short answers

From the same record as the tables above.

How many lawyers have posted about Claude, ChatGPT and Gemini?

We count 872 public voices on Claude, 2,467 public voices on ChatGPT and 134 on Gemini, posted since 2023 by lawyers and people who work with them, as of . Each voice is one post or comment that names the tool.

Do lawyers feel better about Claude, ChatGPT or Gemini?

Net sentiment is +37 for Claude, 90% band +33 to +41. Net sentiment is −13 for ChatGPT, 90% band −16 to −10. Net sentiment is +28 for Gemini, 90% band +15 to +39. Claude ahead of ChatGPT: the two 90% bands do not overlap. Claude and Gemini: the two 90% bands overlap, so net sentiment cannot tell them apart. Gemini ahead of ChatGPT: the two 90% bands do not overlap.

Task reports with these tools: Legal research report · Drafting report · Summarization report