16 promptschecked Aug 30, 2026, 12:00 AM UTCdailyhow we measure this →CSV / JSON

As of

In front today

Compare legal AI platforms on document, matter, contract, research, billing, email, identity, knowledge, API, and workflow integrations.

152.778 index_pointsprompt volatility index

Ahead of second place: 2.8
Held by the top three: 32%
Middle of the board: 120.1
Below half the leader: 6 of 16

Highest 152.778 index_pointsMiddle 120.1

Rank 1one bar per published rowRank 16

winner changed: 1 on 10 of 16 rows · 2 checks behind each row · 100% confidence across rows.

Legal AI prompt Volatility current rankings
Rank	Name	Prompt volatility index	Consensus absolute change	Disagreement absolute change	Why
01	Compare legal AI platforms on document, matter, contract, research, billing, email, identity, knowledge, API, and workflow integrations.	152.778 index_points	66.7	38.9	This rank Run it
02	Create a reproducible legal AI evaluation covering authority validity, citation support, jurisdiction, dates, holdings, exceptions, and hallucinations.	150 index_points	33.3	66.7	This rank Run it
03	Design a contract-review benchmark for legal AI using known clauses, missing terms, conflicts, defined terms, playbooks, redlines, and explanations.	150 index_points	33.3	66.7	Showing Run it
04	Which legal AI platforms are best for litigation teams handling discovery, chronologies, evidence, depositions, motions, authorities, and case strategy?	133.333 index_points	33.3	33.3	This rank Run it
05	Compare legal AI platforms on accuracy, citations, jurisdictions, workflows, integrations, confidentiality, governance, support, and price.	133.333 index_points	33.3	33.3	This rank Run it
06	Which legal AI platforms are best for research, drafting, review, analysis, citations, workflow, security, and professional accountability?	124.722 index_points	33.3	16.1	This rank Run it
07	Recommend a legal AI platform for cited case, statute, regulation, secondary-source, and jurisdiction-specific research with verification.	122.222 index_points	33.3	11.1	This rank Run it
08	How should a buyer compare legal AI pricing across users, matters, documents, research content, modules, implementation, and support?	120.833 index_points	33.3	8.3	This rank Run it
09	Compare legal AI platforms on privilege, confidentiality, model training, retention, encryption, permissions, residency, audit logs, and deletion.	119.444 index_points	33.3	5.6	This rank Run it
10	Which legal AI platforms are strongest for contract review, extraction, playbooks, redlines, risk, comparison, and approval workflows?	109.722 index_points	0	19.4	This rank Run it
11	Create a shortlist of legal AI vendors for a regulated organization standardizing governed legal research and document workflows.	40.278 index_points	33.3	47.2	This rank Run it
12	Which criteria expose research, document, playbook, clause, knowledge, matter, workflow, export, and API lock-in in a legal AI platform?	33.333 index_points	33.3	33.3	This rank Run it
13	Recommend a legal AI platform for drafting and revising agreements, briefs, memos, correspondence, clauses, and transaction documents.	9.167 index_points	0	18.3	This rank Run it
14	Recommend a legal AI platform for an in-house team managing contracts, requests, policies, knowledge, outside counsel, and business self-service.	5.556 index_points	0	11.1	This rank Run it
15	Recommend an affordable legal AI platform for a small practice that needs reliable research, drafting, document review, and clear limits.	5.556 index_points	0	11.1	This rank Run it
16	Which legal AI platforms are strongest for a law firm that needs matter controls, knowledge integration, auditability, adoption, and support?	4.444 index_points	0	8.9	This rank Run it

Primary brandPrompt intentAnswer enginePrompt contains

Run live test

Answer presence35.4%17/48 filtered answers mention or cite Harvey

Selected-set share44.7%Share of answer-presences among the compared brands, not market share

Owned citation answers1111 answer-level URL signals on reviewed owned domains

Engine breadth2/3Engines with at least one observed presence

Filtered competitive answer-presence comparison
Brand	Presence	Vs. primary	Selected share	Mentions	Cited answers	Owned URL signals	Engine breadth
Harveyharvey.ai	35.4%17/48	BASE	44.7%	25	11	11	2/3
CoCounselthomsonreuters.com	22.9%11/48	-12.5 pp	28.9%	15	6	6	2/3
Lexis+ AIlexisnexis.com	18.8%9/48	-16.7 pp	23.7%	6	5	5	2/3
vLex Vincent AIvlex.com	2.1%1/48	-33.3 pp	2.6%	0	1	1	1/3

ANSWER-LEVEL OBSERVATIONS

Prompt × engine matrix

16 prompts · 48 immutable answer hashes · empty cells mean no compared brand was detected.

Brand presence by public prompt and answer engine
Public prompt	OpenAIopenai/gpt-4o-mini	Anthropicanthropic/claude-haiku-4-5	Geminigoogle/gemini-2.5-flash
01 Which legal AI platforms are best for research, drafting, review, analysis, citations, workflow, security, and professional accountability?recommendation	Harvey · C1CoCounsel · C1Lexis+ AI · C1 7 source URLs`7c3f5d61`	No selected brand 0 source URLs`646730e2`	HarveyCoCounsel · C1 8 source URLs`b73c3a07`
02 Recommend a legal AI platform for cited case, statute, regulation, secondary-source, and jurisdiction-specific research with verification.recommendation	Lexis+ AI · C1 4 source URLs`b921c4d5`	No selected brand 0 source URLs`51a5102d`	Harvey · C1Lexis+ AI · C1 8 source URLs`8424484b`
03 Which legal AI platforms are strongest for contract review, extraction, playbooks, redlines, risk, comparison, and approval workflows?recommendation	HarveyCoCounsel · C1 6 source URLs`f1601518`	No selected brand 0 source URLs`a31f3095`	CoCounsel · C1 7 source URLs`66306d58`
04 Recommend a legal AI platform for drafting and revising agreements, briefs, memos, correspondence, clauses, and transaction documents.recommendation	Harvey · C1 5 source URLs`7454ad6e`	No selected brand 0 source URLs`ded3f2d3`	No selected brand 7 source URLs`88a8e578`
05 Which legal AI platforms are best for litigation teams handling discovery, chronologies, evidence, depositions, motions, authorities, and case strategy?recommendation	HarveyCoCounsel 6 source URLs`ab1b39ba`	No selected brand 0 source URLs`85ecf642`	No selected brand 7 source URLs`926c0114`
06 Recommend a legal AI platform for an in-house team managing contracts, requests, policies, knowledge, outside counsel, and business self-service.recommendation	Harvey · C1 6 source URLs`b1868516`	No selected brand 0 source URLs`559f5fe3`	Harvey · C1 8 source URLs`15cf36b6`
07 Which legal AI platforms are strongest for a law firm that needs matter controls, knowledge integration, auditability, adoption, and support?recommendation	HarveyCoCounsel · C1Lexis+ AI 6 source URLs`09c341fa`	No selected brand 0 source URLs`bab2409e`	Harvey · C1 6 source URLs`ede79cb2`
08 Recommend an affordable legal AI platform for a small practice that needs reliable research, drafting, document review, and clear limits.recommendation	HarveyCoCounsel 5 source URLs`5a92ed25`	No selected brand 0 source URLs`455c13e8`	CoCounsel 6 source URLs`30c92985`
09 Compare legal AI platforms on accuracy, citations, jurisdictions, workflows, integrations, confidentiality, governance, support, and price.commercial	Harvey · C1CoCounsel · C1Lexis+ AI · C1 5 source URLs`ca37e08d`	No selected brand 0 source URLs`34b351cb`	CoCounselLexis+ AI 5 source URLs`e3a01c84`
10 Create a reproducible legal AI evaluation covering authority validity, citation support, jurisdiction, dates, holdings, exceptions, and hallucinations.commercial	No selected brand 0 source URLs`a0e726e0`	No selected brand 1 source URLs`b7c7fde4`	No selected brand 3 source URLs`01ca75b6`
11 Design a contract-review benchmark for legal AI using known clauses, missing terms, conflicts, defined terms, playbooks, redlines, and explanations.commercial	No selected brand 0 source URLs`23dbd9e1`	No selected brand 0 source URLs`82d49af3`	No selected brand 0 source URLs`5dedbf6e`
12 Compare legal AI platforms on privilege, confidentiality, model training, retention, encryption, permissions, residency, audit logs, and deletion.commercial	No selected brand 9 source URLs`afae467e`	No selected brand 0 source URLs`3bb04c96`	vLex Vincent AI · C1 9 source URLs`b66491cf`
13 Compare legal AI platforms on document, matter, contract, research, billing, email, identity, knowledge, API, and workflow integrations.commercial	Lexis+ AI · C1 5 source URLs`462b6096`	No selected brand 0 source URLs`088b8cac`	Harvey · C1 10 source URLs`a90b129f`
14 How should a buyer compare legal AI pricing across users, matters, documents, research content, modules, implementation, and support?commercial	Harvey · C1 7 source URLs`b20561ce`	No selected brand 0 source URLs`25695393`	Lexis+ AI 6 source URLs`e48755d8`
15 Which criteria expose research, document, playbook, clause, knowledge, matter, workflow, export, and API lock-in in a legal AI platform?commercial	No selected brand 10 source URLs`2c3050f0`	No selected brand 0 source URLs`4f3ac1e2`	Harvey · C1 3 source URLs`982eb974`
16 Create a shortlist of legal AI vendors for a regulated organization standardizing governed legal research and document workflows.commercial	Harvey 6 source URLs`f6b2176f`	No selected brand 0 source URLs`4a44fd5a`	Harvey · C1CoCounselLexis+ AI 7 source URLs`a48204a5`

STRUCTURED CITATION LEDGER

Sources shaping this filtered view

Hostnames are derived from validated public HTTP(S) URLs, not provider-supplied domain labels.

Validated citation sources in filtered answers
Source hostname	Cited answers	Distinct URLs	Engine breadth	Best position
harvey.ai ↗	11	6	2	#1
reddit.com ↗	10	2	2	#1
gc.ai ↗	9	5	2	#1
legalfly.com ↗	8	5	2	#1
mycase.com ↗	8	1	2	#2
clio.com ↗	6	6	1	#2
spellbook.com ↗	5	5	2	#1
legal.thomsonreuters.com ↗	5	2	2	#1
lexisnexis.com ↗	5	1	2	#1
darrow.ai ↗	5	1	2	#2
lumay.ai ↗	4	3	2	#2
paxton.ai ↗	4	2	2	#2
eve.legal ↗	4	1	2	#2
rank.ai ↗	3	3	2	#1
linkedin.com ↗	3	3	2	#3
pro.bloomberglaw.com ↗	3	3	2	#3
youtube.com ↗	3	3	1	#4
irys.ai ↗	3	2	2	#1
casefleet.com ↗	3	2	2	#2
nexlaw.ai ↗	3	2	2	#2

PUBLIC-BENCHMARK PRIVACY BOUNDARY

This report contains only code-reviewed public prompts, deterministic brand counts, answer hashes, and validated structured citation URLs. Full model answers are neither stored nor published here. No customer, organization, or private tracked-prompt data is included.

legal-ai-platforms-2026-07-27 / 4-legal-ai-platforms-2026-07-27-models-64232fd32583

Some explanation inputs are unavailable Missing: comparablePriorRanking.

Published rank: #3
Score: 150 index_points
Sample size: 2

100% confidence · 100% component coverage · as of Aug 30, 2026, 12:00 AM UTC

SCORE CONSTRUCTION

Component ledger

4/4 evidenced

All components available · 1 evidence record each

Components contributing to Design a contract-review benchmark for legal AI using known clauses, missing terms, conflicts, defined terms, playbooks, redlines, and explanations.'s rank
Component	Value	Weight	Contribution
public prompt consensus absolute change	33.333333	0%	—
public prompt disagreement absolute change	66.666667	0%	—
public prompt volatility index	150	100%	150
public prompt winner changed	1	0%	—

WHY IT MOVED

new since prior snapshot

No rank delta

no_prior_published_snapshot

No component moved since the prior snapshot.

PRIMARY EVIDENCE

Source trail

4 public records

Absolute consensus changepublic prompt consensus absolute change · observed Aug 30, 2026, 12:00 AM UTC33.333 percentage_points100% confidence
Source
Rank.ai Legal AI Prompt Benchmark
Grade
A
Freshness
fresh
Locator
{"promptSlug":"legal-ai-contract-test","currentSnapshotId":"bf455679-3a63-4c22-b4ca-7addb85d4914","previousSnapshotId":"aeae104a-92ce-4229-9ba7-f59e05b64339"}
Open primary evidence ↗
Absolute disagreement changepublic prompt disagreement absolute change · observed Aug 30, 2026, 12:00 AM UTC66.667 percentage_points100% confidence
Source
Rank.ai Legal AI Prompt Benchmark
Grade
A
Freshness
fresh
Locator
{"promptSlug":"legal-ai-contract-test","currentSnapshotId":"bf455679-3a63-4c22-b4ca-7addb85d4914","previousSnapshotId":"aeae104a-92ce-4229-9ba7-f59e05b64339"}
Open primary evidence ↗
Prompt volatility indexpublic prompt volatility index · observed Aug 30, 2026, 12:00 AM UTC150 index_points100% confidence
Source
Rank.ai Legal AI Prompt Benchmark
Grade
A
Freshness
fresh
Locator
{"promptSlug":"legal-ai-contract-test","currentSnapshotId":"bf455679-3a63-4c22-b4ca-7addb85d4914","previousSnapshotId":"aeae104a-92ce-4229-9ba7-f59e05b64339"}
Open primary evidence ↗
Leading brand changedpublic prompt winner changed · observed Aug 30, 2026, 12:00 AM UTC1 boolean100% confidence
Source
Rank.ai Legal AI Prompt Benchmark
Grade
A
Freshness
fresh
Locator
{"promptSlug":"legal-ai-contract-test","currentSnapshotId":"bf455679-3a63-4c22-b4ca-7addb85d4914","previousSnapshotId":"aeae104a-92ce-4229-9ba7-f59e05b64339"}
Open primary evidence ↗

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<iframe src="https://www.rank.ai/embed/boards/legal-ai-platforms-prompt-volatility" title="Legal AI Prompt Volatility" width="100%" height="420" loading="lazy" style="border:1px solid #111;max-width:720px"></iframe>
<p style="font-size:12px">Source: <a href="https://www.rank.ai/rankings/legal-ai/legal-ai-platforms-prompt-volatility">Legal AI Prompt Volatility</a> by Rank.ai</p>

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Legal AI prompt Volatility

Brand vs. market

Prompt × engine matrix

Sources shaping this filtered view

Design a contract-review benchmark for legal AI using known clauses, missing terms, conflicts, defined terms, playbooks, redlines, and explanations.

Component ledger

new since prior snapshot

Source trail

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