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...

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.

Try CS Disco Free

Pro fromPricing on request

AI-Powered EdiscoveryGenerative AI ChatAutomated Doc ReviewCase TimelinesLegal Hold Automation

8.8 Zekai

Power Ediscovery Suite

AI for Legal

Ease of Use

8.5

Accuracy

9.2

Value

7.8

Time Saving

9.5

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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

1

Ingest & Process Data

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

2

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.

3

Build Case Strategy

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

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

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

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

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.

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.

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

Plans & Pricing