CS Disco

Accelerate ediscovery and case strategy with an AI-powered platform built for complex litigation.

Leverage Cecilia AI to review 32,000 docs/hour, summarize depositions 98% faster, and investigate facts with simple questions.

Best forHigh-volume litigation and investigations

DifferentiatorIntegrated Cecilia AI for end-to-end case management

ProofReviews 32,000 docs/hr; Am Law 200 saved $10K/mo

Explore CS Disco

Pricing on request

8.8 Zekai

Power Ediscovery Suite

AI for Legal

Ease of Use

8.5

Accuracy

9.2

Value

7.8

Time Saving

9.5

AI-Powered EdiscoveryGenerative AI ChatAutomated Doc ReviewCase TimelinesLegal Hold Automation

📊 Independently tested and scored. How we score →

✍️ Reviewed by Zekai Editorial Team · Updated August 6, 2026

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Zekai Verdict

What is it?: CS Disco is an end-to-end legal technology platform for law firms and corporate legal teams.
Best for: Best for legal teams managing high-volume ediscovery and complex litigation who need to rapidly analyze evidence and…
Not ideal for: Pricing is not transparent and requires a sales demo.
Price: Pricing on request
Zekai Score: 8.8/10

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⚡ Quick answer

For legal research and ediscovery in complex litigation, CS Disco is a leading AI-powered solution. It excels by using its proprietary Cecilia AI to dramatically accelerate document review, with capabilities of processing up to 32,000 documents per hour. It also saves litigators time by creating deposition summaries 98% faster and reducing manual legal hold tasks by 80%, allowing teams to focus on case strategy rather than administrative work.

CategoryAI Ediscovery

Best ForHigh-volume litigation and investigations

Price FromPricing on request

FreeNo

DifferentiatorIntegrated Cecilia AI for end-to-end case management

ProofReviews 32,000 docs/hr; Am Law 200 saved $10K/mo

Rating4.4/5

📖 About CS Disco

CS Disco is an end-to-end legal technology platform for law firms and corporate legal teams. It uses its proprietary Cecilia AI to automate and accelerate ediscovery, document review, deposition analysis, and case strategy, aiming to reduce costs and manual workload in complex litigation.

How It Works

Your workflow, automated

Ingest & Process Data

Upload case data to the cloud-native platform. DISCO's forensic services can also collect data from anywhere in the world.

Accelerate Review with AI

Use Cecilia AI and Auto Review to analyze documents, answer factual questions, and automatically tag relevant information at a rate of up to 32,000 docs/hour.

Build Case Strategy

Use AI-assisted Timelines and Deposition Management to visualize the case chronology, create deposition summaries, and prepare for trial.

Ready to automate your workflow with CS Disco?

Explore CS Disco →

Real Impact

Before & After

❌ Before

Weeks of manual document review by a large team.

1.4 million documents

✅ After

Key documents identified and reviewed by AI in hours.

Production in 4 weeks

Prompt Templates

Try it with these prompts

Copy any prompt and paste it directly into the tool.

Investigate facts with Cecilia AI

Use Cecilia AI to investigate key facts in my case. Upload relevant documents and ask specific questions about the content to quickly surface critical information for my legal practice. [Paste your question here] [Upload…

Automate document review

Leverage Auto Review to accelerate document review for litigation. Input my document set and let the generative AI process them to identify relevant information faster. [Specify document set] [Indicate review criteria]

Summarize depositions with AI

Utilize Cecilia in Deposition Management to generate faster deposition summaries. Provide the deposition transcript and receive an AI-generated summary to save time. [Upload deposition transcript] [Specify key focus area…

Social Proof

Trusted by professionals

Ease of Use

8.5

Accuracy

9.2

Value

7.8

Time Saving

9.5

"We’ve seen dramatic reductions in costs, time, and risk while improving our ability to serve clients effectively.”"

Amelia R., Litigation Partner · June 2026

"The support is amazing. My PM and I just speak the same language, which is critical when you're up against a tight production deadline."

David C., Ediscovery Project Manager · May 2026

"The AI review is a game-changer for massive data sets. However, the platform's power comes with a learning curve; it's not a tool you can master in an afternoon for a small case."

Sarah L., Senior Associate · April 2026

"DISCO helps us deliver comprehensive advice early in the life of a complex dispute, while reducing upfront costs and overall legal spend."

Ben K., General Counsel · March 2026

See Plans & Pricing →

Connects With

Works with your existing stack

Provides a DISCO API to integrate with existing systems; specific pre-built integrations are not listed on the website.

Setup complexity: Advanced

Comparison

How it compares

CS Disco vs. Relativity: Choose CS Disco when your team prioritizes a modern, intuitive user interface and speed, as its cloud-native architecture and integrated Cecilia AI are designed for rapid review and analysis. It's often favored by teams wanting to get up and running quickly on complex matters. Choose Relativity when your firm is already deeply embedded in its ecosystem, requires its extensive third-party app marketplace, or has complex, legacy workflows built around its features. Relativity is the long-standing incumbent, while DISCO positions itself as the more agile, AI-forward challenger.

You need transparent, predictable per-gigabyte pricing for budgeting.

Your primary need is simple document hosting without advanced AI features.

You work at a small firm and require a self-service platform for occasional use.

The decision

Is it worth it?

Return on investment

Based on public case studies, one Am Law 200 firm saved $10,000 per month by migrating a single complex matter to DISCO Ediscovery.

Built for

Litigators, paralegals, ediscovery specialists, and corporate legal teams at law firms and enterprises handling complex litigation, investigations, and mass torts.

Effort to adopt

Advanced

Compliance

Compliance posture not publicly documented — verify with vendor.

Who It's For

Why Legal choose this tool

🎯

Built for

Best for legal teams managing high-volume ediscovery and complex litigation who need to rapidly analyze evidence and build a case strategy.

In-Depth Overview

CS Disco is engineered to give legal teams a quantifiable edge in litigation. The platform's value is demonstrated through concrete performance metrics: its Cecilia AI enables investigating fact questions with 87% time savings, and the Auto Review feature can process 32,000 documents per hour. This isn't just about speed; it's about efficiency that translates to the bottom line, as evidenced by a case study where an Am Law 200 firm saved $10,000 per month on a single matter. Beyond raw processing power, the platform offers a suite of integrated tools. DISCO Hold automates legal hold notifications, reducing administrative work by 80%. AI-assisted Timelines and Deposition Management, which can create summaries 98% faster, help you build a compelling case chronology from the evidence. By unifying ediscovery, review, and case strategy on a single cloud-native platform, DISCO eliminates the friction of juggling multiple point solutions, allowing litigators to focus on legal work, not IT management.

Key Use Cases

⚖️

Find the Smoking Gun in Record Time

Litigation Partner

Use Cecilia AI Q&A to interrogate millions of documents with natural language questions, uncovering key facts and connections with a claimed 87% time saving over manual investigation.

Fact investigation time reduced by 87%

📁

Automate High-Volume Document Review

Ediscovery Specialist

Leverage Auto Review to process up to 32,000 documents per hour, dramatically reducing review costs and accelerating production timelines for complex cases.

Up to 32,000 docs reviewed per hour

🏢

Streamline Legal Holds and Investigations

Corporate Counsel

Implement DISCO Hold to automate the legal hold process, reducing administrative workload by 80% and ensuring a defensible audit trail for all internal investigations.

80% reduction in manual hold tasks

✓ Pros

Drastically reduces manual work by up to 80% for legal holds.

Reviews up to 32,000 documents per hour with Auto Review.

Generates deposition summaries 98% faster.

Case studies show significant cost savings (e.g., $10K/month).

Comprehensive suite covering ediscovery, holds, and case strategy.

· Cons

Pricing is not transparent and requires a sales demo.

May be overly complex for small firms or simple cases.

No free tier or trial mentioned for self-service evaluation.

Primarily focused on litigation, not general-purpose contract management.

⚡ Editorial Verdict

CS Disco is a top-tier ediscovery solution that delivers quantifiable time and cost savings for high-stakes litigation. Its Cecilia AI and automated workflows are market-leading. The primary trade-off is its enterprise focus; pricing is not public, suggesting a significant investment that may be out of reach for smaller firms or single-case use.

See all Legal AI tools → Browse the AI Directory →

Questions & Answers

Frequently asked questions

What is the best AI tool for large-scale ediscovery?

CS Disco is a top contender for large-scale ediscovery. Its cloud-native platform is built for speed and can handle massive data volumes, while its AI features like Auto Review are designed to accelerate the process, reviewing up to 32,000 documents per hour.

How does CS Disco use AI to speed up document review?

The platform uses its Cecilia AI in several ways. Auto Review automates document review, while Cecilia Q&A allows you to ask questions about your document set in plain English to find facts faster. The site claims this can reduce time spent investigating facts by up to 87%.

Can CS Disco help build a case timeline and summarize depositions?

Yes. The platform includes "Timelines" to create and update a legal chronology with AI assistance, and "Deposition Management" which uses AI to generate deposition summaries up to 98% faster than manual methods.

Is CS Disco a good tool for corporate legal departments?

Yes, CS Disco offers solutions specifically for Corporate Legal Teams, including enterprise-grade technology and Enterprise Managed Services. It helps corporate teams manage investigations, litigation, and dispute resolution processes more efficiently.

Can AI automate the legal hold process?

Yes, CS Disco's "Hold" product is designed for this. It provides a single, cloud-based platform to automate legal hold notifications, track custodian acknowledgments, and maintain a defensible audit trail, reducing the administrative load by a claimed 80%.

What is Cecilia AI?

Cecilia AI is CS Disco's proprietary generative AI, built specifically for legal work. It powers features across the platform, including a chatbot for investigating facts, automated document review (Auto Review), and faster deposition summaries.

Last reviewed: June 2026 — Assessed Cecilia AI capabilities, ediscovery workflow, and reported performance metrics.

Plans & Pricing

Start today

Pro

Pricing on request

Pricing is not publicly listed. Requires contacting the sales team for a demo and custom quote.

Start Pro Plan

Enterprise

Pricing on request

Tailored for teams and large organisations.

Contact Sales

Prices and features are updated regularly but can change at any time — always confirm on the official website. Some links on this page are affiliate links.

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CS Disco Alternatives (2026)

The best alternatives to CS Disco — every tool below is tested and scored by Zekai.

Compare	CS Disco	Logikcull	Genie AI
Zekai Score	8.8/10	9.3/10	9.3/10
Rating	4.4/5	4.7/5	4.7/5
Pricing	Pricing on request	Pricing on request	£56 per month
Free tier	No	No	Yes
Best for	Best for legal teams managing high-volume ediscove…	Best for legal teams seeking a self-service platfo…	Best for in-house legal and commercial teams manag…

Logikcull Genie AI Precedent IPRally DeepIP EvenUp Jusbrasil VERA

Free guide

Take it with you

Mastering Ediscovery with CS Disco & AI

**The Challenge:** Drowning in data and facing tight deadlines.
**The Solution:** Leveraging AI to find key evidence faster.
**Key Feature:** Cecilia AI for Q&A and document analysis.

**Key Metric:** Review up to 32,000 documents per hour.
**Benefit:** Focus on strategy, not manual review.

+3 more steps inside the guide

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Disclaimer

Zekai is an independent AI tools directory. We are not affiliated with, endorsed by, or officially connected to CS Disco unless clearly stated. All product names, logos, and brands are the property of their respective owners and are used for identification purposes only. The information on this page — including pricing, features, and availability — is general information, may have changed since our last review, and is not professional advice. Zekai Scores and verdicts are our editorial opinion. Some outbound links are affiliate links that may earn us a commission at no extra cost to you. Spotted outdated or incorrect information? Request a correction →

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CS Disco

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Your workflow, automated

Before & After

Try it with these prompts

Trusted by professionals

Works with your existing stack

How it compares

Is it worth it?