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Head-to-head · AI Contract Review Software

ThoughtRiver vs Luminance

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score ThoughtRiver #3 in AI Contract Review Software 9.0/10 28-day trial Free trial✓ 4 of 4 features Visit ThoughtRiver
Luminance #6 in AI Contract Review Software 8.6/10 Pricing on request · 14-day trial Free trial✓ 0 of 4 features Visit Luminance

ThoughtRiver leads on 0 checks, Luminance 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 scoreThoughtRiver · 9.0/10
  • Free trialboth
  • Most featuresThoughtRiver · 4 of 4

ThoughtRiver scores higher on our rubric for ai contract review software: 9.0 against 8.6 out of 10; our editors rank them #3 and #6.

ThoughtRiver is the better fit for cost-conscious teams needing full review workflows. Luminance is the better fit for enterprise legal operations and compliance.

  • ThoughtRiver fits best

    Cost-conscious teams needing full review workflows

  • Luminance fits best

    Enterprise legal operations and compliance

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 ThoughtRiver 9.0/10 Visit ↗ Luminance 8.6/10 Visit ↗
At a glance
Editor score 9.0 8.6
Ranking #3 in AI Contract Review Software #6 in AI Contract Review Software
Best for Cost-conscious teams needing full review workflows Enterprise legal operations and compliance
Pricing model Paid Paid
Starting price — Pricing on request · 14-day trial
Free plan — —
Free trial 28 days 14 days
Free trial length 28 days 14 days
Deployment Cloud, Desktop Cloud, Self-hosted
Platforms Web, Windows Web
Support Docs Docs · 24/7
Compliance ISO 27001, 2FA SOC 2, ISO 27001, 2FA
Integrations 7 integrations 2 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features ThoughtRiver 4/4 · Luminance 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 Not checked yet Not checked yet
Supported languages Not checked yet Not checked yet
Our review
Pros
  • AI analysis covers risks, obligations, and key clauses
  • Configurable playbooks support repeatable contract review
  • Redlines, scoring, collaboration, and reporting are included
  • AI-assisted negotiation works within Microsoft Word
  • Cited answers connect contract queries to source material
  • Self-hosted deployment and auditable compliance workflows
Cons
  • There is no free plan
  • The low-priced monthly tiers list generic project-management features
  • Annual tiers use GBP billing and require annual plans
  • Pricing requires contacting sales
  • No free plan is available
  • Its broad scope may exceed focused review needs
Our verdict

ThoughtRiver is an AI contract review platform for in-house legal teams, law firms, and non-legal business teams. Its Lexible AI analyzes contracts for risks, obligations, and key clauses, while configurable playbooks help teams apply…

Read the review →

Luminance is an AI legal platform for organizations managing contracts across drafting, negotiation, review, analysis, management, and monitoring. It serves legal, compliance, procurement, finance, sales, and other business teams. The…

Read the review →
  1. ThoughtRiverAI Contract Review Software 9.028-day trial
  2. LuminanceAI Contract Review Software 8.6Pricing on request · 14-day trial

Strengths and trade-offs

  • ThoughtRiver — where it wins

    • AI analysis covers risks, obligations, and key clauses
    • Configurable playbooks support repeatable contract review
    • Redlines, scoring, collaboration, and reporting are included

    Where it doesn't

    • There is no free plan
    • The low-priced monthly tiers list generic project-management features
    • Annual tiers use GBP billing and require annual plans
  • Luminance — where it wins

    • AI-assisted negotiation works within Microsoft Word
    • Cited answers connect contract queries to source material
    • Self-hosted deployment and auditable compliance workflows

    Where it doesn't

    • Pricing requires contacting sales
    • No free plan is available
    • Its broad scope may exceed focused review needs
  • ThoughtRiver9.0/10 · 28-day trial

    A low-entry-cost contract review platform with playbooks, redlines, analytics, and collaboration.

    Visit ThoughtRiverFull verdict →
  • Luminance8.6/10 · Pricing on request · 14-day trial

    An enterprise contract platform spanning drafting, negotiation, review, and compliance.

    Visit LuminanceFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update