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Head-to-head · AI Contract Review Software

Spellbook vs Kira

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Spellbook #4 in AI Contract Review Software 8.8/10 Pricing on request · 7-day trial Free trial✓ 4 of 4 features Visit Spellbook
Kira #8 in AI Contract Review Software 8.4/10 Pricing on request ✓ 0 of 4 features Visit Litera

Spellbook leads on 0 checks, Kira on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSpellbook · 8.8/10
  • Free trialonly Spellbook
  • Most featuresSpellbook · 4 of 4

Spellbook scores higher on our rubric for ai contract review software: 8.8 against 8.4 out of 10; our editors rank them #4 and #8.

Spellbook is the better fit for word-centered legal teams. Kira is the better fit for mature teams analyzing large contract sets.

  • Spellbook fits best

    Word-centered legal teams

  • Kira fits best

    Mature teams analyzing large contract sets

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Spellbook 8.8/10 Visit ↗ Kira 8.4/10 Visit ↗
At a glance
Editor score 8.8 8.4
Ranking #4 in AI Contract Review Software #8 in AI Contract Review Software
Best for Word-centered legal teams Mature teams analyzing large contract sets
Pricing model Paid Paid
Starting price — Pricing on request
Free plan — Not checked yet
Free trial 7 days —
Deployment Cloud, Desktop, Browser extension Cloud, Self-hosted
Platforms Web, Chrome extension Web
Support Email, Docs Docs
Compliance SOC 2, GDPR, HIPAA, 2FA GDPR, ISO 27001, SOC 2
Integrations 7 integrations 4 integrations
Built for Solo, Small business, Mid-market, Enterprise Mid-market, Enterprise
Features Spellbook 4/4 · Kira 0/4
Clause comparison ✓ (best) Not checked yet
Redline suggestions ✓ (best) Not checked yet
Playbook support ✓ (best) Not checked yet
API access ✓ (best) Not checked yet
Specs
Supported file formats DOCX, PDF, DOC, TXT, XLSX, GDOC Not checked yet
Supported languages Not checked yet Not checked yet
Our review
Pros
  • Word add-in with AI review, drafting, comments, and tracked-change edits
  • Custom playbooks support preferred terms and fallback positions
  • Associate analyzes and revises multiple documents in one workflow
  • Extracts provisions, answers questions, and compares clauses across contract sets
  • Supports collaborative grids, citations, risk flagging, and export-ready reports
  • Offers web, API, cloud, and on-premises deployment options
Cons
  • Pricing uses a contact-sales model
  • There is no free plan
  • Its strongest workflow centers on Microsoft Word
  • Pricing requires contacting sales rather than selecting a published plan
  • Its broad feature set may exceed the needs of narrowly focused review teams
  • Advanced use depends on organizing large contract sets and review workflows
Our verdict

Spellbook is an AI contract drafting and review platform for transactional lawyers, law firms, and in-house legal teams. Its Word add-in reviews agreements for risks, drafting errors, missing protections, and playbook deviations, then…

Read the review →

Kira is Litera’s contract intelligence software for high-volume legal review and due diligence. It is designed for law firms and corporate legal teams handling M&A, real estate, banking, finance, tax, and IP matters. The product uses…

Read the review →
  1. SpellbookAI Contract Review Software 8.8Pricing on request · 7-day trial
  2. KiraAI Contract Review Software 8.4Pricing on request

Strengths and trade-offs

  • Spellbook — where it wins

    • Word add-in with AI review, drafting, comments, and tracked-change edits
    • Custom playbooks support preferred terms and fallback positions
    • Associate analyzes and revises multiple documents in one workflow

    Where it doesn't

    • Pricing uses a contact-sales model
    • There is no free plan
    • Its strongest workflow centers on Microsoft Word

  • Kira — where it wins

    • Extracts provisions, answers questions, and compares clauses across contract sets
    • Supports collaborative grids, citations, risk flagging, and export-ready reports
    • Offers web, API, cloud, and on-premises deployment options

    Where it doesn't

    • Pricing requires contacting sales rather than selecting a published plan
    • Its broad feature set may exceed the needs of narrowly focused review teams
    • Advanced use depends on organizing large contract sets and review workflows
  • Spellbook8.8/10 · Pricing on request · 7-day trial

    A Word-centered contract review suite with playbooks, redlines, and multi-document analysis.

    Visit SpellbookFull verdict →
  • Kira8.4/10 · Pricing on request

    A broad contract intelligence platform for high-volume legal review and due diligence.

    Visit LiteraFull verdict →

More comparisons

All AI contract review software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update