By industry

AI Tools for the Legal Industry (2026)

5 tools tracked · 4 active · 1 dead or at risk · Updated August 3, 2026

Beyond the practising lawyer's toolkit, the legal industry runs on document workflow: intake, review, knowledge management, and the long tail of contract work that never reaches a courtroom.

The industry's defining AI event so far has been consolidation rather than invention. A legacy publisher acquired the most credible independent research assistant, which tells you where the durable moat sits - in the proprietary corpus, not the model.

Below, each tool is status-checked. The governance requirements are the same across all of them: verified citations, contractual exclusion from training, and an auditable record of what was generated.

Still Active

Harvey AI

🟢Active

Best firm-wide legal AI platform

Harvey launched in 2022 with a GPT-4-based product for case research, drafting, and document review tailored to elite law firms. Allen & Overy and PwC became flagship customers. By mid-2025 Harvey had raised over $500M across Sequoia, Kleiner, GV, and OpenAI's Startup Fund at a $5B+ valuation and counted most of the AmLaw 100 as customers. The product, team, and roadmap continue to grow.

research

Read the Harvey AI status page or Harvey AI alternatives, best tools like Harvey AI, is Harvey AI dead?, what happened to Harvey AI and why Harvey AI failed.

Claude

🟢Active

Best for contract and document review

Anthropic's AI assistant known for being helpful, harmless, and honest.

Chatbot

Read the Claude status page or Claude alternatives, best tools like Claude, is Claude dead?, what happened to Claude and why Claude failed.

ChatGPT

🟢Active

Best for drafting and summarisation

OpenAI's conversational AI assistant that sparked the generative AI revolution.

Chatbot

Read the ChatGPT status page or ChatGPT alternatives, best tools like ChatGPT, is ChatGPT dead?, what happened to ChatGPT and why ChatGPT failed.

Notion AI

🟢Active

Best for legal knowledge management

AI writing assistant integrated into Notion's workspace for drafting, summarizing, and brainstorming.

Productivity

Read the Notion AI status page.

Dead or At Risk

These have shut down, been abandoned, or been absorbed into another company. Check before you renew.

Casetext

🟡Acquired / Merged

Acquired by Thomson Reuters

Casetext launched CoCounsel in March 2023, a GPT-4-powered legal assistant for case analysis, contract review, and deposition prep. The product gained traction with AmLaw 100 firms and Thomson Reuters announced a $650M cash acquisition in June 2023, closing in August. CoCounsel was rebranded as a Thomson Reuters product line and integrated with Westlaw. The standalone Casetext site is gone.

research

Read the Casetext status page or Casetext alternatives, best tools like Casetext and is Casetext dead?.

Side-by-Side Comparison

Tool	Status	Category	Best for	Deep dive
Harvey AI	Active	research	Best firm-wide legal AI platform	Harvey AI alternatives
Claude	Active	Chatbot	Best for contract and document review	Claude alternatives
ChatGPT	Active	Chatbot	Best for drafting and summarisation	ChatGPT alternatives
Notion AI	Active	Productivity	Best for legal knowledge management	Notion AI status
Casetext	Acquired / Merged	research	Acquired by Thomson Reuters	Casetext alternatives

How to Choose

→Is the underlying legal corpus licensed and current?
→Does it produce an audit trail suitable for a regulator or client review?
→Is client material contractually excluded from model training?
→Does it fit existing document-management workflows, or replace them?

Frequently Asked Questions

How is AI used in the legal industry in 2026?

Mainly document review, first-draft generation, research triage, and knowledge management. Final legal judgement and filing responsibility remain entirely human.

What was the biggest legal AI acquisition?

Thomson Reuters acquiring Casetext was the category-defining deal, consolidating an independent AI research assistant into an incumbent publisher's corpus.

Is legal AI regulated?

There is no dedicated regime, but professional conduct rules on competence, confidentiality, and candour to the court apply fully to AI-assisted work.

Keep Reading: Status Checks and Alternatives

Deeper research on the tools above — shutdown reports, death-signal checks, and replacement shortlists.

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