Best Legal AI Tools for 2025

AI for in-house legal teams is particularly transformative, simplifying tasks like legal drafting, compliance checks, legal translation, and contract management while providing practical solutions for everyday operations.

Here’s an overview of the best legal AI tools for 2025, highlighting their features, benefits, and potential use cases to help legal teams choose the right fit for their specific needs.

1. ChatGPT

Pricing: Free; Plus plan at $20/month; Team plan at $25/month/user (annual)
Latest Model: GPT-4o, with multimodal input and voice interaction
Compliance: GDPR certified, strong data security

ChatGPT, developed by OpenAI, has become a widely used tool in the legal field with its advanced natural language processing (NLP) capabilities. Designed to simplify tasks like legal drafting, research, contract analysis, and legal translation, ChatGPT is a versatile tool for solo practitioners, in-house teams, and law firms alike.

On October 31, 2024, OpenAI introduced SearchGPT to Plus and Team users, an AI-powered search engine integrated directly into ChatGPT. SearchGPT enhances the user experience by providing real-time, concise answers with clear citations. This integration makes ChatGPT a one-stop solution for legal professionals seeking both generative AI and real-time web search capabilities. With no knowledge cutoff and a conversational interface, SearchGPT ensures lawyers can access the latest legal developments without leaving the platform.

The GPT-4o model powers both ChatGPT and SearchGPT, enabling them to deliver precise, context-aware assistance tailored to the legal field. Combined with advanced multimodal inputs and predictive analytics, these tools bring unparalleled efficiency and accuracy to the legal profession.

Benefits for Legal Teams

• Reduces time spent on drafting and reviewing contracts.

• With SearchGPT, legal professionals can access live updates on case law, statutes, and regulations.

• Enables teams to share customised workflows and tailored prompts.

• Combines GPT-4o’s reasoning power with SearchGPT’s real-time data for informed decision-making.

Use Cases

• Legal Translation: Translates legal documents into multiple languages.

• Legal Research: Provides quick, accurate summaries of case law and statutes.

• Document Simplification: Breaks down complex legal jargon for clients or internal use.

2. Google Gemini

Pricing: Google One AI Premium at $19.99/month (£18.99/month)
Latest Model: Gemini 1.5, optimised for reasoning tasks
Compliance: SOC 1, 2, 3, and ISO 27701

Google Gemini offers multimodal processing capabilities, enabling it to handle text, images, audio, and video. Designed for a variety of professional applications, it provides reasoning and summarisation tools useful for legal drafting and review.

Gemini’s integration with Google Workspace enhances collaboration and document management.

Benefits for Legal Teams

• Accelerates drafting and reviewing workflows with advanced reasoning.

• Offers integration with existing productivity tools.

• Enhances collaboration across legal teams.

Use Cases

• Contract Analysis: Identifies key clauses and suggests improvements.

• Legal Drafting: Helps you to generate clear legal documents.

• Collaboration: Facilitates teamwork through integrated Google apps.

3. Microsoft Copilot

Pricing: Free; Pro plan at $20/month (£19/month)
Latest Model: GPT-4o
Compliance: GDPR certified

Microsoft Copilot is a practical tool for professionals working within the Microsoft Office ecosystem. It simplifies legal document management by automating tasks like drafting, risk assessment, and compliance checks. Its integration with familiar tools such as Word and Excel makes it a convenient choice for streamlining routine legal work, especially in areas like contract law.

Whether drafting contracts or simplifying legal language for broader understanding, Copilot offers a straightforward solution that aligns with the needs of legal teams.

Benefits for Legal Teams

• Reduces time spent on drafting and reviewing contracts.

• Leverages predictive analytics for risk assessment and compliance.

• Enhances collaboration through integrated Office tools.

Use Cases

• Legal Translation: Assists with multilingual legal documents.

• Contract Drafting: Modifies legal agreements with ease.

• Compliance Checks: Reviews documents for regulatory adherence.

4. Claude AI

Pricing: Free; Pro plan at $20/month (£18/month); Team plan at $25/month (£23/month) per user (annual)
Latest Model: Claude 3.5 Sonnet
Compliance: SOC 2 and HIPAA certified

Claude AI, offers a range of tools for legal professionals, focusing on tasks like drafting, reviewing, and clause analysis. Its advanced reasoning capabilities make it particularly effective for crafting and reviewing complex legal texts, including clause recommendations and contract analysis.

With its latest model, Claude 3.5 Sonnet, the tool delivers enhanced accuracy and reliability for a range of legal applications.

Benefits for Legal Teams

• Speeds up drafting and reviewing processes with smart recommendations.

• Ensures compliance through advanced reasoning capabilities.

• Securely handles sensitive legal data.

Use Cases

• Contract Review: Helps with clause analysis and suggests improvements.

• Legal Drafting: Creates clear documents for client needs.

• Risk Assessment: Identifies potential compliance risks in contracts.

5. Perplexity AI

Pricing: Freemium; Pro at $20/month or $200/year
Latest Model: Llama 3.1-Sonar Series (with options to choose from GPT-4o, Claude-3, Sonar Large, and other advanced models)
Compliance: GDPR compliant

Perplexity AI stands out with its real-time data updates, making it a good choice for legal professionals needing up-to-the-minute information. It helps professionals access accurate information quickly, making it particularly useful for ongoing case preparation and client advising. Its AI-powered search capabilities provide direct answers to queries.

Benefits for Legal Teams

• Up-to-date research for accurate case preparation.

• Improves project management and case tracking.

Use Cases

• Legal Research: Delivers current case law and statute updates.

• Case Preparation: Summarises relevant information for ongoing matters.

• Client Advising: Provides accurate, real-time insights for client consultations.

6. Meta AI

Pricing: Currently free
Latest Model: Llama 3.1
Compliance: GDPR certified

Meta AI combines open-source flexibility with a range of AI-driven features. It supports multimodal processing, enabling it to handle legal research, document drafting, and contract analysis.

Its open-source nature allows for extensive customisation, ensuring that legal teams can adapt it to their specific needs.

Benefits for Legal Teams

• Reduces costs while offering advanced AI capabilities.

• Simplifies legal workflows with multimodal functionality.

Use Cases

• Legal Research: Extracts insights from case law and regulations.

• Contract Simplification: Breaks down complex clauses for better understanding.

• Custom Applications: Enables firms to develop proprietary legal AI solutions.