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11 toolsResearch assistants that answer legal questions with citations to cases, statutes and regulations you can check, and draft the memo or brief from them.
The 11 tools here split into two kinds. The first is the research service with AI built into its tiers: Westlaw posts Westlaw Edge with AI-Assisted Research at $170.95/mo and Westlaw Advantage at $288.60/mo; CoCounsel Legal puts the Thomson Reuters assistant on top of Westlaw and Practical Law content; Lexis+ AI pairs LexisNexis content with the Protégé assistant and Shepard's Verify; Bloomberg Law bundles Bloomberg Law Answers and Draft Analyzer under one subscription; Vincent AI runs on the vLex/Fastcase library; and Clio Work adds research with a built-in citator to Clio. Those last five are priced by quote. The second kind is the AI-first research assistant with a posted plan: CaseMine from $49/mo, LawY at $89/user/mo for its all-in-one plan, Alexi's default plan at $499 a month, Paxton's Individual plan at $499/user/mo, and Counsel Stack, which runs inside Claude and ChatGPT with a free tier of 25 research calls, packs at $20 per 50 calls and an Unlimited plan at $199/mo.
Across the set the AI answers a legal question with citations to cases, statutes and regulations, summarizes opinions, checks the citations against the source and drafts the memo or brief from the results; several add document analysis and matter timelines. Six of the 11 post a price and five are quoted, with posted plans running from a free tier and $49/mo to $499/user/mo; every figure was read on the vendor's own site on October 31, 2026. Eight of the 11 vendors post that client data is not used to train their AI models and name a security standard: Alexi, Clio Work, CoCounsel Legal, Lexis+ AI, Paxton, Vincent AI and Westlaw name SOC 2, most of them with ISO 27001 alongside, and CaseMine names ISO/IEC 27001:2022. Two tools list Clio as an integration (Clio Work and Vincent AI) and CoCounsel Legal lists Smokeball; most of the rest list Microsoft Word, and several list iManage and NetDocuments.
Featured spot open. Put your tool at the top of this category for $149/month.
Feature your toolLegal research platform that turns a question into an Instant Memo or a deeper Pro Memo and runs Alexi Arguments sessions for case strategy.
AI: Alexi AI engine, Instant Memos, Pro Memos, Alexi Arguments
Legal research platform sold on one subscription price, with Bloomberg Law Answers, Draft Analyzer, Points of Law, docket search and litigation analytics.
AI: Bloomberg Law Answers, AI Assistant, Points of Law, Draft Analyzer, Docket Search, Clause Adviser, Complaint Summaries, Litigation Analytics
Legal research platform for federal and all 50 state courts, with AMICUS AI to answer questions and summarize opinions and CaseIQ to find cases from an uploaded document.
AI: AMICUS AI, CaseIQ, Parallel Search
Clio's AI workspace that reviews case files, builds matter timelines, finds cited authority through a built-in citator and drafts motions, briefs and summaries.
AI: Clio Work, built-in citator, risk and gap analysis, matter timelines, drafting, Clio for Word
Legal AI assistant from Thomson Reuters that handles research, document analysis and drafting from a single query, grounded in Westlaw and Practical Law content.
AI: CoCounsel Legal, Deep Research, Litigation Document Analyzer, Westlaw Brief Builder, Tabular Analysis, Agentic Workflows, Workspaces, CoCounsel Essentials
Legal research assistant that runs inside Claude and ChatGPT to search court decisions, statutes and regulations, link answers to the passage and check citations.
AI: Counsel Stack research assistant, Check Cites, Answer Questions, Build Collections, Connect Your AI, Citator API, Research API
AI legal assistant sold as one subscription that answers research questions with sources, analyzes documents, writes first drafts and redlines contracts in Word.
AI: LawY all-in-one AI legal assistant, Research, Drafting, Analysis, Prompts, Contracts, Lawyer in the loop
Research platform that pairs LexisNexis content with the Protégé assistant for research, drafting and summarizing, with Shepard's Verify checking citations.
AI: LexisNexis Protégé, Legal AI Research, Legal AI Drafting, Shepard's Verify, Vault, Workrooms, agent skills
AI workspace for litigation teams that connects legal research, a matter record and drafting, with medical chronologies and billing summaries for injury cases.
AI: Contextual Research, File Ready Drafting, Matter Intelligent Analysis, Quick-Start Drafting, Document Analysis, Medical Chronologies, Medical Billing Summaries
Legal assistant on the vLex/Fastcase library that answers research questions, runs 50-state surveys, analyzes complaints and contracts and profiles judges and parties.
AI: Vincent AI, Ask a Research Question, 50-State Survey, Analyze a Complaint, Analyze a Contract, Redline Analysis, Vincent Studio
Legal research service whose AI tiers add AI-Assisted Research, Jurisdictional Surveys, Deep Research, a Litigation Document Analyzer and Claims Explorer.
AI: AI-Assisted Research, AI Jurisdictional Surveys, Deep Research, Litigation Document Analyzer, Claims Explorer, CoCounsel
6 of the 11 tools post a price; 5 are quote-based (priced to your business after a demo). Among the 3 with a flat monthly price, the range runs from $49/mo (CaseMine) to $499/mo (Alexi). Priced differently: Counsel Stack free plan, then $199/mo; LawY $89/user/mo; Paxton $499/user/mo.
Free trial: Alexi, Clio Work, CoCounsel Legal, Lexis+ AI, Paxton, Vincent AI and Westlaw. Free plan: Counsel Stack. The other 3 start with a demo or a quick signup.
Alexi, Bloomberg Law, CaseMine, Clio Work, CoCounsel Legal, Counsel Stack, LawY, Lexis+ AI, Paxton, Vincent AI and Westlaw are listed as a fit for a solo attorney.
Tools that name the segment on their own site: Solo attorneys 11; Small law firms 11; Personal injury firms 2; Family law and estate planning practices 3; Criminal defense practices 1.
8 of the 11 post a statement that client data is not used to train AI models and name a security standard: Alexi (SOC 2); CaseMine (ISO/IEC 27001:2022; ISO 9001:2015); Clio Work (SOC 2 Type II; ISO 27001; GDPR; HIPAA); CoCounsel Legal (SOC 2; ISO 42001; ISO 27001); Lexis+ AI (SOC 2 Type 2; ISO 27001; HIPAA); Paxton (SOC 2; ISO 27001; HIPAA); Vincent AI (SOC 2; ISO 27001); Westlaw (SOC 2; ISO 42001; ISO 27001). The other 3 have no such statement posted on the vendor's site, which is not the same as training on your data; ask before you buy.
Listings that name an integration or platform: Alexi (Filevine, Litify, Actionstep, iManage, NetDocuments, SharePoint); CaseMine (CaseMine API); Clio Work (Microsoft Word); CoCounsel Legal (Smokeball, Microsoft Word, Outlook, Microsoft Teams, iManage, NetDocuments); Counsel Stack (Claude, ChatGPT, MCP, API); LawY (Google Drive, OneDrive, Dropbox, Microsoft Word, LEAP, WealthCounsel); Lexis+ AI (Microsoft Word, iManage, SharePoint, NetDocuments, OpenText, Google Drive); Paxton (Microsoft Word, Outlook, Claude, document management systems, DMS); Vincent AI (Clio); Westlaw (Microsoft Word, CoCounsel Legal). Integrations change often; confirm with the vendor before you buy.
On Oct 31, 2026, against each vendor's own site and pricing page. Vendors change plans often; anything a reader or vendor flags is fixed, usually the same day. Corrections: support@aiforlawpractices.com.