Dioptra

Automate contract redlining and playbook distillation with high-accuracy AI to reduce review times by up to 80% for legal teams and solo practitioners.

Paid contract review

Starting at

$450/mo

About Dioptra

Dioptra is an AI-driven contract review platform designed to accelerate legal workflows by automating the redlining process. Originally developed by a team of technologists from IBM Watson, Spotify, and Nutanix, the tool was built to address the friction points in contract negotiation. By leveraging large language models specifically tuned for legal accuracy, Dioptra allows users to review both their own standard forms and counterparty papers. The platform operates primarily within Microsoft Word through a dedicated add-in, ensuring that legal professionals can maintain their existing drafting environment while benefiting from AI-powered suggestions. The tool's primary functionality revolves around AI redline generation based on custom playbooks or historical executed agreements. Users can upload their company’s legal guidelines, and Dioptra will automatically suggest edits that align with those standards. Additionally, the platform features Playbook Distillation, which uses AI to extract rules and standard clauses from past contracts to create new, ready-to-use playbooks. Other core features include term search and extraction for large-scale contract analysis, the generation of issue lists and risk summaries to streamline communication between departments, and a clause library for quick insertions of approved language. Dioptra is tailored for a wide range of legal and business professionals, including solo General Counsels, mid-sized legal departments, and global law firms. It is also utilized by procurement and finance teams who need to understand contract risks without requiring constant legal intervention. The system is built with enterprise-grade security as a priority, featuring SOC2 Type II compliance and GDPR adherence. Importantly, the company maintains a strict data policy where user data and contracts are never used to train its AI models, and it offers self-hosted deployment options for organizations with stringent data residency requirements. What distinguishes Dioptra from standard Contract Lifecycle Management (CLM) tools is its focus on high-precision redlining rather than just document storage. While many tools provide simple replacement functionality, Dioptra emphasizes lawyer-level accuracy, claiming 95% accuracy on internal papers and 92% on counterparty documents. It integrates into existing workflows with CLMs and CRMs in days rather than weeks. Its ability to handle complex, multi-faceted contract sections and provide explanations for its redlines makes it an intelligent co-pilot that helps lawyers spot nuances they might otherwise miss during manual review.

Dioptra pros & cons

Pros

Achieves high accuracy levels of 95% on user papers and 92% on counterparty documents.
Eliminates the need for manual data entry by distilling playbooks from past executed agreements.
Ensures data privacy by never training AI models on customer-specific legal documents.
Includes a native Microsoft Word Add-in to keep legal workflows within a familiar environment.
Provides a 7-day free trial for solo practitioners to test the Starter plan features.

Cons

The Starter plan requires annual billing to access the $450 per month rate.
Teams and Enterprise pricing require a demo or custom quote for seat-based totals.
Initial setup and ROI realization guidance can take between 15 and 30 days depending on the plan.

Dioptra use cases

Solo General Counsels can use the Starter plan to manage high contract volumes without additional headcount by automating redlines against standard forms.
Law Firm Associates can reduce time spent on manual review by using AI to flag non-market provisions and generate initial redline drafts.
Procurement Teams can quickly generate risk summaries and issue lists to understand counterparty terms before involving the legal department.
Innovation Officers at law firms can deploy private LLMs to scale high-accuracy contract review while maintaining strict client data residency.
Corporate Finance teams can use the Term Search feature to extract specific financial obligations and terms from executed contracts at scale.

Dioptra features

playbook distillation
issues list & risk summaries
ai redline generation
private llm deployment
workflow integrations (clm, crm)
secure ai chat assistant
clause library word add-in
term search & extraction

Dioptra pricing

Is Dioptra free? No, Dioptra doesn't offer a free plan; pricing starts at $450 / month.

Starter

$450 / month

Redline from Playbooks
Redline from Standard Forms
Redline from Past Agreements
Microsoft Word Add-in
Prompting office hours
Unlimited Contract Reviews
Out of the box Market Playbooks
Out of the box Prompt Library
No Training on your Data

Teams

$4,200 / year

Everything in Starter
15-day Free Guided ROI Realization
Team prompt library
30-day Customized Onboarding Plan
Bring Your Own Repository (BYOR)

Enterprise

Price varies

Everything in Teams
30-day Free Guided ROI Realization
Playbook building services
Enterprise SSO
Dedicated Support
Usage Dashboard

Dioptra FAQs

What is Dioptra's customer data policy regarding AI training?

Dioptra does not train its models on customer contracts, playbooks, or any other customer data. Customers retain complete control over their data and the outputs of the AI Agent.

How accurate is the AI in reviewing legal documents?

The tool demonstrates 95% accuracy on internal papers and 92% accuracy on counterparty documents. It also achieves a 97% accuracy rate for term search and extraction tasks.

Can Dioptra extract rules from my existing contracts?

Yes, the Playbook Distillation feature allows the AI to extract fully custom, AI-ready playbooks from your standard forms and previously executed agreements.

Does the tool integrate with Microsoft Word?

Yes, Dioptra provides a Microsoft Word Add-in that enables redline generation and clause library access directly within the document editor.

What security standards does Dioptra follow?

Dioptra is SOC2 Type II and GDPR compliant. Data is encrypted at rest with SSE-S3 and in transit with TLS 1.2, and the platform supports self-hosted deployment.

Ratings & reviews

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