Harvey AI / harvey.ai
AI legal assistant built specifically for large law firms providing legal research, contract analysis, litigation drafting, and M&A due diligence tools grounded in legal expertise and firm-specific data.
Pricing
Free
Free plan
No
Category
Developer Tools
Platforms
1
Free plan
No
API access
No
Open source
No
Platforms
1
Harvey AI is one of the most well-funded AI legal startups, having raised over $300 million from investors including OpenAI Fund and Google Ventures. It is built specifically for large law firms and professional services firms rather than for individual lawyers or small firms, and has signed enterprise agreements with major firms including PwC, A&O Shearman, and Linklaters.
Harvey's core legal capabilities include contract analysis and drafting, legal research with case law synthesis, litigation document drafting, M&A due diligence document review, and regulatory analysis. These are grounded in legal domain expertise rather than general AI capability — Harvey understands legal concepts, jurisdiction-specific requirements, and the conventions of legal document drafting in a way that general-purpose AI tools do not replicate without careful prompting.
The firm-specific memory capability allows Harvey to learn a firm's specific work product, templates, and approach over time, making suggestions more aligned with the firm's style than general AI tools. This institutional knowledge accumulation is a key long-term differentiator.
Harvey is positioned as an attorney productivity tool rather than a replacement for attorney judgment. All AI outputs require attorney review before use in professional work, and Harvey includes citations to source materials.
Harvey AI runs as document analysis llm software built around text and document workflows. Users typically start with a prompt, upload, or connected data source, and the underlying model handles the heavy lifting before returning a result you can refine or export. It's available on web.
The capabilities that matter most for teams evaluating Harvey AI.
Analyses contracts for non-standard terms, missing provisions, and risks grounded in legal domain knowledge and firm-specific templates.
Learns a law firm's work product, templates, and approach to align AI suggestions with the firm's specific style and conventions over time.
Reviews transaction documents for issues, flags missing representations, and synthesises findings across large document sets for M&A due diligence workflows.
Enterprise only. Law firm licensing. No public pricing or individual access. Raised $300M+ in funding.
Model
Enterprise
Starting price
Free
Free trial
No
Thomson Reuters CoCounsel leverages the authoritative Westlaw database for research. Clio AI is better for small and mid-size law firm practice management. Spellbook AI focuses on contract drafting in Microsoft Word.
A side-by-side look at the closest alternative in this category.
Key facts about model providers, platforms, and team support.
Model Provider
OpenAI, Anthropic, Harvey
Platforms
Web
Deployment
Enterprise, SaaS
Integrations
Document management systems, Matter management platforms, API
Team Collaboration
Yes
Launch Year
2023
Compliance signals and data-handling notes as reported by the vendor.
SOC 2 Type II. ISO 27001. GDPR compliant. Attorney-client privilege protections in enterprise agreements. Data not used for model training.
Harvey processes legal documents and client matter data under enterprise data handling agreements with attorney-client privilege protections. Customer data is not used to train Harvey's AI models per enterprise terms.
Editorial Verdict
Harvey AI is the best AI legal tool for large law firms wanting firm-specific AI legal assistance beyond what Thomson Reuters CoCounsel's Westlaw integration provides, with institutional knowledge accumulation.
Last verified July 24, 2026.
Enterprise only. Law firm licensing. No public pricing or individual access. Raised $300M+ in funding.
Enterprise licensing through Thomson Reuters legal product subscriptions. Integrated into Westlaw subscriptions. No standalone consumer purchase.
SOC 2 Type II. ISO 27001. GDPR compliant. Attorney-client privilege protections in enterprise agreements. Data not used for model training.
SOC 2 Type II. ISO 27001. GDPR compliant. Attorney-client privilege and legal confidentiality in enterprise agreements. FedRAMP authorised.
Harvey processes legal documents and client matter data under enterprise data handling agreements with attorney-client privilege protections. Customer data is not used to train Harvey's AI models per enterprise terms.
Legal documents processed under enterprise data handling agreements with attorney-client privilege protections. Customer data not used to train AI models per Thomson Reuters terms.
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