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Head-to-head · AI Legal Assistant

Lexis+ vs Spellbook

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Lexis+ #3 in AI Legal Assistant 9.0/10 Pricing on request · 7-day trial Free trial✓ 0 of 5 features Visit Lexis+
Spellbook #4 in AI Legal Assistant 8.8/10 Pricing on request · 7-day trial Free trial✓ 0 of 5 features Visit Spellbook

Lexis+ leads on 0 checks, Spellbook on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreLexis+ · 9.0/10
  • Free trialboth

Lexis+ scores higher on our rubric for ai legal assistant: 9.0 against 8.8 out of 10; our editors rank them #3 and #4.

Lexis+ is the better fit for U.S. legal research and citation checking. Spellbook is the better fit for contract teams working in Word or Google Docs.

  • Lexis+ fits best

    U.S. legal research and citation checking

  • Spellbook fits best

    Contract teams working in Word or Google Docs

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Side by side

Feature Lexis+ 9.0/10 Visit ↗ Spellbook 8.8/10 Visit ↗
At a glance
Editor score 9.0 8.8
Ranking #3 in AI Legal Assistant #4 in AI Legal Assistant
Best for U.S. legal research and citation checking Contract teams working in Word or Google Docs
Pricing model Paid Paid
Starting price Pricing on request · 7-day trial —
Free plan — —
Free trial 7 days 7 days
Free trial length 7 days 7 days
Deployment Cloud Cloud, Desktop, Browser extension
Platforms Web Web, Windows, macOS, Chrome extension
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Lexis+ 0/5 · Spellbook 0/5
Legal research Not checked yet Not checked yet
Contract review Not checked yet Not checked yet
Document drafting Not checked yet Not checked yet
Source citations Not checked yet Not checked yet
Custom playbooks Not checked yet Not checked yet
Specs
Data residency Not checked yet Not checked yet
Monthly query limit Not checked yet Not checked yet
Our review
Pros
  • Natural-language search, Lexis Answers, and broad legal content
  • Shepard’s citation analysis flags potentially vulnerable cases
  • Document analysis, Search Term Maps, Practical Guidance, and alerts
  • Reviews and redlines contracts, with custom playbooks for consistent reviews.
  • Drafts clauses and answers document questions with citations.
  • Integrates with Word, Google Docs, cloud drives, and legal databases.
Cons
  • Pricing varies by organization, features, content, and users
  • Access is centered on a web platform
  • U.S.-focused coverage may not fit teams needing non-U.S. research
  • Custom pricing is based on the number of team members on the license.
  • No free plan is listed; access starts with a 7-day trial.
  • Its workflow is centered on contracts and legal documents, not general legal operations.
Our verdict

Lexis+ is a cloud legal research and workflow platform for law firms, corporate legal departments, law schools, and government agencies. It brings together case law, statutes and legislation, editorial and secondary sources, practical…

Read the review →

Spellbook is legal AI software for law firms and in-house legal teams that need help reviewing, redlining, and drafting contracts. It works through Microsoft Word, Google Docs, and a browser-based application, keeping its core document…

Read the review →
  1. Lexis+AI Legal Assistant 9.0Pricing on request · 7-day trial
  2. SpellbookAI Legal Assistant 8.8Pricing on request · 7-day trial

Strengths and trade-offs

  • Lexis+ — where it wins

    • Natural-language search, Lexis Answers, and broad legal content
    • Shepard’s citation analysis flags potentially vulnerable cases
    • Document analysis, Search Term Maps, Practical Guidance, and alerts

    Where it doesn't

    • Pricing varies by organization, features, content, and users
    • Access is centered on a web platform
    • U.S.-focused coverage may not fit teams needing non-U.S. research

  • Spellbook — where it wins

    • Reviews and redlines contracts, with custom playbooks for consistent reviews.
    • Drafts clauses and answers document questions with citations.
    • Integrates with Word, Google Docs, cloud drives, and legal databases.

    Where it doesn't

    • Custom pricing is based on the number of team members on the license.
    • No free plan is listed; access starts with a 7-day trial.
    • Its workflow is centered on contracts and legal documents, not general legal operations.
  • Lexis+9.0/10 · Pricing on request · 7-day trial

    A research-centered legal assistant for U.S. cases, statutes, citations, and documents.

    Visit Lexis+Full verdict →
  • Spellbook8.8/10 · Pricing on request · 7-day trial

    A document-focused legal assistant for teams working in Word or Google Docs.

    Visit SpellbookFull verdict →

More comparisons

All AI legal assistant comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update