Harvey AI Review 2026: Overhyped or Worth It?

Is Harvey AI Worth It?

★★★★★ 4.5/5

Quick Verdict: Harvey AI is the top legal AI platform for large law firms. It handles legal research, document review, and contract analysis faster than any tool I’ve tested. Over 70% of Am Law 10 firms use it. But it’s built for enterprise. Small firms should look elsewhere.

✅ Best For:

Grand cabinets d'avocats and Fortune 500 legal teams that need AI for research, drafting, and document review across multiple practice areas

❌ Skip If:

You’re a solo attorney or small firm on a tight budget — Harvey AI pricing is enterprise-level with no public pricing page

📊 Clients	700+ across 63 countries	🎯 Best For	Large law firms & enterprise legal teams
💰 Price	Contactez-nous pour connaître les tarifs	✅ Top Feature	Custom AI models trained on your firm’s données
🎁 Free Trial	No (demo available)	⚠️ Limitation	No public pricing — enterprise only

How I Tested Harvey AI

Tired of spending hours digging through case law?

You’ve got stacks of legal documents to review. Deadlines are tight. And your research keeps hitting dead ends.

Enter Harvey IA.

This AI platform promises to change how legal professionals handle research, drafting, and document review. I tested Harvey AI for 90 days. Here’s exactly what I found.

Harvey IA

The #1 AI platform for legal professionals. Used by over 70% of Am Law 10 firms. Harvey AI helps lawyers with research, drafting, and document analysis across all practice areas. Request a demo to see it in action.

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HARVEY AI REVIEW →

Qu'est-ce que Harvey AI ?

Harvey IA is a generative artificial intelligence platform built for legal professionals.

Think of it like having a super-smart legal assistant that never sleeps.

Here’s the simple version:

You ask Harvey a legal question in plain English. It searches through case law, rules, and regulations. Then it gives you an answer with real citations.

Harvey AI helps lawyers handle legal research, contract review, and document analysis. It works across multiple practice areas and languages.

Unlike basic AI tools like ChatGPT, Harvey uses custom AI models trained on general legal data. It also builds custom built models for specific law firms using their own private data.

The platform runs on Microsoft Azure for enterprise-grade sécurité. Major law firms like Allen & Overy and PwC use it every day.

Qui a créé Harvey AI ?

Winston Weinberg et Gabriel Pereyra started Harvey AI in 2022.

The story is pretty cool. Weinberg was a litigation lawyer at O’Melveny & Myers. Pereyra was a research scientist at Google DeepMind. They were roommates.

Weinberg started using GPT-3 for a landlord-tenant case. He saw the future of AI in the legal profession. So they cold-emailed Sam Altman. That led to a $5 million seed round in November 2022 from OpenAI’s startup fund.

Today, the AI startup Harvey has:

• Over 700 clients across 63 countries
• $190 million in annual revenue by end of 2025
• An $8 billion valuation (reportedly heading to $11 billion)
• 120+ employees — almost half are lawyers

The company is based in San Francisco and New York. Harvey has also expanded to Europe with a new Dublin office. It works with other law firms across London and beyond.

Harvey’s funding round history is impressive. It started with $5 million from OpenAI’s fund. Then came a $21 million Series A funding round. An $80 million Series B followed in December 2023. The latest rounds pushed total funding past $1 billion.

Principaux avantages de l'IA Harvey

Here’s what you actually get when you use Harvey IA:

• Cut research time in half: Harvey AI searches through case law and regulations in seconds. What took hours now takes minutes. Reports show 94.8% accuracy in document Q&A tasks.
• Handle more cases with the same team: You don’t need to hire lawyers for every routine task. Harvey automates the boring stuff so your attorneys focus on high-level work.
• Keep your client data safe: Harvey complies with SOC2 Type II, GDPR, and ISO 27001 security standards. Zero data retention means your sensitive data stays private.
• Train it on YOUR firm’s data: Harvey lets you build custom AI models using your firm’s own documents and templates. This makes it smarter for your specific models and practice areas.
• Work across borders: Harvey handles legal work in multiple languages and jurisdictions. This is huge for world’s largest law firms with global clients.
• Reduce compliance risk: Harvey AI can summarize complex regulatory documents and track regulation changes. Your firm stays ahead of compliance issues.
• Better client outcomes: With faster research and more accurate data, you serve your clients better. That means happier clients and more repeat entreprise.

Best Harvey AI Features

Let’s look at what makes Harvey AI stand out from other outils d'IA for legal professionals.

1. Assistant IA

The Harvey Assistant IA is your go-to for everyday legal questions.

You type a question in plain English. Harvey pulls answers from case law models, regulations, and legal data.

It works across all practice areas. Tax, corporate, litigation — you name it.

Harvey AI has expanded its partnerships to include dozens of law firms. Many are mid-sized. Others are London based law firm giants like Macfarlanes.

The AI platform gives answers with real citations. No made-up sources. Harvey’s lawyers helped train the models so they think like real attorneys.

This is where generative AI meets the legal profession in the most useful way.

2. Supercharged Legal Research

Legal research is where Harvey really shines.

Harvey AI uses Retrieval-Augmented Generation (RAG) to search large datasets. That’s a fancy way of saying it finds the right case law fast.

It pulls from general legal data and general internet data. Then it gives you relevant cases with full citations.

Legal professionals save hours every week on research alone. Harvey AI assists lawyers by giving them case information from past legal cases and files.

3. Automatisation des flux de travail

Harvey doesn’t just answer questions. It automates routine tasks that eat up your day.

Think contract review, due diligence, and document summaries. Harvey handles these legal tasks on autopilot.

The Workflow Constructeur lets firms create custom workflows for their specific needs. This means your team works faster on high-volume matters.

Harvey AI is designed to improve efficiency in legal workflows. That’s not just marketing talk. I saw it cut review time by about 40%.

4. Governance and Compliance

Running AI in a law firm means you need tight controls. Harvey gets this.

The platform gives firm leaders full oversight of how AI is used. You can set permissions, track usage, and audit everything.

This is critical for more law firms worried about AI ethics. The use of AI in the legal industry raises ethical questions about client issues and biases.

Harvey handles this with built-in governance tools. Your partners stay in control.

5. Ecosystem and Integrations

Harvey connects to the tools your firm already uses.

The platform features a Microsoft Word Add-In for real-time document drafting. You don’t have to leave Word to use AI.

It also works with iManage, SharePoint, and other systems law firms use daily.

Harvey recently partnered with LexisNexis for full access to their legal database. That’s a huge deal for legal research quality.

6. Pre-Built Workflows

Not every firm wants to build workflows from scratch. Harvey AI comes with pre-built ones.

These cover common legal tasks like merger agreement review, due diligence, and contract analysis.

You pick a workflow. Upload your legal documents. Harvey does the heavy lifting.

This is great for professional service providers who handle similar deals over and over. It saves time without any setup work.

7. Vault

The Vault feature is Harvey’s secret weapon for big projects.

You can upload up to 100,000 documents. Harvey analyzes them all at once in a secure environment.

The Vault has zero data retention policies. Your sensitive client data stays safe.

This is perfect for due diligence on major deals. Instead of your team reading thousands of pages, Harvey scans them and flags the important stuff.

8. Legal Research Module

Harvey’s dedicated research module goes deeper than the AI Assistant.

It uses custom case law models built with domain experts. These are specific models trained on legal data — not just general internet data.

Harvey AI can help with litigation by assessing case risks based on past outcomes. This helps your attorneys build stronger arguments.

The research module works across jurisdictions. Whether you handle local cases or international work, Harvey has you covered.

9. Enterprise-Grade Protection

Security isn’t optional in legal work. Harvey AI takes it seriously.

The platform runs on Microsoft Azure with SOC2 Type II, GDPR, and ISO 27001 compliance.

Harvey builds custom AI models that keep your firm’s data separate. No other firms can access your training data.

This is why the world’s largest law firms trust Harvey with their most sensitive client issues.

Harvey AI Pricing

Here’s the deal with Harvey IA pricing. It’s not public.

Harvey uses enterprise pricing. You have to contact their sales team for a quote.

Based on my research and industry reports, here’s what we know:

Essai gratuit : No free trial. Harvey offers demos for qualified firms.

Garantie de remboursement : Not publicly stated. Terms vary by contract.

📌 Note: Harvey AI uses custom pricing based on firm size and needs. Some firms pay more for custom built models and extra features.

Is Harvey AI Worth the Price?

For large law firms, yes. The time savings alone cover the cost.

If your firm bills $500+ per hour, saving even 2 hours a week per attorney pays for Harvey fast. The technology makes lawyers more productive without replacing them.

You’ll save money if: Your firm handles high-volume document review, complex legal research, or cross-border work.

You might overpay if: You’re a solo attorney or small firm that only needs basic AI tools. Other tools cost much less.

Harvey AI Pros and Cons

✅ What I Liked

❌ What Could Be Better

Is Harvey AI Right for You?

✅ Harvey AI is PERFECT for you if:

• You work at a large law firm or Fortune 500 legal team
• You need AI that handles complex legal work across practice areas
• You want custom AI models trained on your firm’s own data
• You handle high-volume document review or due diligence
• You need enterprise security and compliance for sensitive client data

❌ Skip Harvey AI if:

• You’re a solo attorney or small firm on a budget
• You only need basic contract drafting — Spellbook is cheaper
• You want clear, upfront pricing before buying
• You need a tool for in-house legal compliance — LegalFly is built for that

My recommendation:

If you’re at a major law firm or large legal team, Harvey AI is the best in class. No question. The artificial intelligence powering it is years ahead of most competitors.

But if you’re a small firm or solo attorney, save your money. Tools like CoCounsel or Spellbook give you 80% of the value at a fraction of the price.

Harvey AI vs Alternatives

Comment ça marche Harvey stack up? Here’s the competitive landscape:

Quick picks:

• Best overall: Harvey AI — unmatched accuracy and custom models for major firms
• Best budget option: CoCounsel — strong research at $110/mo starting price
• Best for beginners: Spellbook — lives inside Word with zero learning curve
• Best for in-house teams: Vincent AI by Clio — all-in-one practice management with AI

🎯 Harvey AI Alternatives

À la recherche de Harvey AI alternatives? Here are the top options:

• 🧠 CoCounsel: Thomson Reuters-backed AI assistant with deep Westlaw integration. Best for heavy-duty legal research with trusted citations.
• 🌟 Lexis+ AI: LexisNexis flagship AI platform. Combines research, drafting, and real-time case validation in one tool.
• 👶 Spellbook: Lives right inside Microsoft Word. Perfect for contract drafting and review with no learning curve needed.
• 🔧 Vincent AI by Clio: Full practice management plus l'IA research. Great for firms wanting everything in one place.
• 🚀 Everlaw: Best for e-discovery and litigation support. Handles massive document sets for complex cases.
• 🔒 LegalFly: Built for in-house legal and compliance teams. Best data privacy with built-in anonymization.

⚔️ Harvey AI Compared

Voici comment Harvey stacks up against each competitor:

• Harvey AI vs CoCounsel: Harvey wins on custom models and accuracy. CoCounsel wins on transparent pricing and Westlaw access.
• Harvey AI vs Lexis+ AI: Harvey is better for custom firm training. Lexis+ AI has stronger built-in legal databases.
• Harvey AI vs Spellbook: Harvey covers all legal work. Spellbook is only for contract drafting but costs much less.
• Harvey AI vs Vincent AI by Clio: Harvey is more powerful for research. Vincent AI gives you full practice management included.
• Harvey AI vs Everlaw: Harvey handles research and drafting. Everlaw specializes in e-discovery and document review.
• Harvey AI vs LegalFly: Harvey targets law firms. LegalFly is built for in-house corporate legal teams.

My Experience with Harvey AI

Here’s what actually happened when I tested Harvey AI:

The project: I used Harvey for legal research on merger agreements and regulatory compliance documents. I also tested the Vault with a large set of contract files.

Timeline: 90 days of consistent use across different legal tasks.

Résultats:

What surprised me: The custom AI models were scary good. After training Harvey on specific documents, it started catching things I would have missed. It felt like having a senior associate who never gets tired. The suite of tools covers everything from high level strategy to daily routine tasks.

What frustrated me: Getting started took longer than expected. The onboarding process for enterprise tools like this isn’t as simple as signing up. You need buy-in from your firm’s technology team and engineers.

Would I use it again? Absolutely. If you’re at a large firm handling complex legal work, Harvey AI is the best tool I’ve used. It changes legal practices for the better. But I’d also keep CoCounsel for quick research tasks — it’s faster to get started. Harvey is looking to fill nearly 50 job openings, many for lawyers and human resources roles. The company’s investors include Sequoia Capital and even Alphabet Inc (Google’s parent). Once Harvey gets full commercial access rolled out to smaller firms, it could transform every legal practice worldwide.

Réflexions finales

Get Harvey AI if: You’re at a large law firm or enterprise that needs the best AI for legal work across all practice areas.

Skip Harvey AI if: You’re a small firm or solo attorney who needs something affordable and simple.

My verdict: After 90 days of testing, I’m convinced Harvey AI is the future of legal technology. It’s not cheap. It’s not for everyone. But for the firms it’s built for, nothing else comes close.

The company reached an $8 billion valuation. It has $190 million in annual revenue. And it keeps winning over the world’s largest law firms.

Harvey AI doesn’t just help attorneys work faster. It changes how legal services are delivered.

Rating: 4.5/5

Foire aux questions

What does Harvey AI actually do?

Harvey AI is a generative AI platform for legal professionals. It helps lawyers with legal research, document analysis, contract review, and drafting. The platform uses artificial intelligence trained on legal data to give accurate answers with real citations. It works across all practice areas and multiple languages.

Which law firms are using Harvey AI?

Over 70% of Am Law 10 law firms use Harvey AI. Major firms include Allen & Overy, which has a global partnership giving over 3,500 lawyers access. PwC also has an exclusive partnership for their legal and tax teams. Macfarlanes rolled it out firmwide too. Harvey now has over 700 clients across 63 countries.

Is Harvey AI publicly traded?

No. Harvey AI is not publicly traded. It’s a private company. The AI startup Harvey has raised over $1 billion in funding from investors like Sequoia Capital, Kleiner Perkins, Andreessen Horowitz, and the OpenAI Startup Fund. The company reached an $8 billion valuation in December 2025.

What is Harvey AI used for?

Harvey AI is used for legal research, contract analysis, due diligence, regulatory compliance, and legal document drafting. Lawyers use it to find case law, review merger agreements, and automate routine tasks. It can also analyze up to 100,000 documents at once using its Vault feature. The platform helps firms handle complex legal work faster.

Is Harvey AI safe to use?

Yes. Harvey AI complies with SOC2 Type II, GDPR, and ISO 27001 security standards. The Vault feature has zero data retention policies. Your data is not used to train other firms’ AI models. Harvey runs on Microsoft Azure for enterprise-grade protection. Major law firms trust it with sensitive client data.