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Dioptra

AI contract redlining that works from your own playbooks and previously executed contracts, rather than generic legal templates.

3.7 Legal AI
3.7 Good 3.7

Bottom line: Dioptra is a capable legal ai tool, best known for AI redlining driven by your own playbooks.

Redlining against your executed contracts beats generic template comparison Recently acquired by Icertis – ask about roadmap and integration before a long commitment
Reviewed by Challenging Voice Editorial · Updated Aug 2026 How we rate
PricingContact for Pricing
Free planNo
CompanyDioptra (Icertis)
PlatformsWeb
Best forLegal AI
Visits4
Last reviewedSep 2026
UpdatedAug 2026
Ask AI about Dioptra ChatGPT Claude Perplexity

Overview

Dioptra redlines contracts using AI, and the detail that matters is what it redlines against: your own playbooks and previously executed contracts, not a generic notion of standard terms.

That distinction is the whole game in contract review. Every legal team has positions it will and will not accept, and those live in playbooks and in the history of what has actually been signed. A tool marking up against generic standards produces suggestions a lawyer has to re-evaluate from scratch; one working from your executed contracts is proposing what your organisation has already agreed to before.

Worth knowing before you evaluate: Icertis has acquired Dioptra, announced on the site itself, to build an AI-first contracting experience. The product currently operates with its own pricing, signup and demo path, but ask about the roadmap and how it will sit inside Icertis before committing to a multi-year arrangement. As always, generated redlines inform a lawyer’s judgement rather than replacing it.

Key features

  • AI redlining driven by your own playbooks
  • Learns from previously executed contracts
  • Marks up against your accepted positions, not generic standards
  • Published pricing and self-serve signup
  • Demo path for evaluation

Screenshots & demo

Dioptra screenshot 1

Pricing

Dioptra uses custom pricing. Contact their team for a quote based on your needs.

  • Pricing modelContact for Pricing
  • Starting priceCustom
  • Free planNo
Visit Dioptra

Pricing is provided as a guide. Check the official site for the latest plans.

Pros & cons

Pros

  • Redlining against your executed contracts beats generic template comparison
  • Playbook-driven, so it encodes positions your team already holds
  • Pricing and signup published rather than sales-gated

Cons

  • Recently acquired by Icertis – ask about roadmap and integration before a long commitment
  • Requires a body of executed contracts and playbooks to work well
  • Redlines inform a lawyer's judgement, they do not replace it

How it compares

ToolRatingFreeFromBest known for
Dioptra (this tool)3.7NoAI redlining driven by your own playbooks
Lex Machina4.5NoPredictive litigation analytics based on historical case outcomes
Everlaw4.5NoPredictive coding and technology-assisted review for prioritizing relevant documents
Harvey4.4No$4,000/moDocument review, due diligence, contract analysis, and legal research in one platform

Alternatives to Dioptra

4 tools our editors picked as direct alternatives to Dioptra.

Everlaw

4.5

Cloud-native ediscovery and litigation platform with built-in AI for document review and case analytics.

Contact for Pricing Legal AI

Our verdict

3.7 / 5 3.7

Dioptra is a solid legal ai tool, best known for AI redlining driven by your own playbooks.

What makes it different: Dioptra stands out for AI redlining driven by your own playbooks.

How we score it
Overall 3.7
Value for money 4.2
Feature depth 4.9
Popularity 3.7
Best for ProfessionalsTeamsCreatorsCurious learners

Frequently asked questions

What is Dioptra?
Dioptra is a legal ai tool listed in the Challenging Voice directory. AI contract redlining that works from your own playbooks and previously executed contracts, rather than generic legal templates.
Is Dioptra free?
Dioptra does not offer a free plan.
What are the best Dioptra alternatives?
Popular alternatives to Dioptra include WiseTime, Filevine, and Clausehound. Browse them all in the Legal AI category.
Is Dioptra any good?
Dioptra scores 3.7 out of 5 based on our editorial review.

Reviews

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