Casetext
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.
Acquisition Details
Thomson Reuters acquired Casetext for $650M in cash; deal closed Aug 2023. The product is now branded as CoCounsel inside Thomson Reuters.
🩺 Health Signals
No checks have been run on this tool yet.
📅 Timeline
Launches CoCounsel built on GPT-4
https://casetext.com/cocounsel/
Thomson Reuters announces $650M acquisition
https://www.thomsonreuters.com/en/press-releases/2023/june/thomson-reuters-to-acquire-casetext.html
Acquisition closes
https://www.reuters.com/markets/deals/thomson-reuters-completes-650-million-casetext-acquisition-2023-08-17/
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Casetext — the AI legal research pioneer that launched CoCounsel in March 2023 — was acquired by Thomson Reuters for $650M in August 2023 and folded into Westlaw Precision AI, leaving lawyers searching for a replacement or supplement in 2026. Harvey AI is the BigLaw and enterprise standard at a $3B valuation with AmLaw 100 customers, Spellbook is best-in-class for AI contract drafting inside Microsoft Word, Lexis+ AI and Westlaw Precision AI are the frictionless upgrades for firms already on those platforms, Paxton AI is the value pick for solos and small firms at $49/user/month, Claude excels at long-document analysis, ChatGPT covers brainstorming and drafting, and Perplexity Pro is the pick for cited public-web regulatory research. These eight tools like Casetext, split cleanly between specialist AI legal research and general-purpose assistants and ranked by use case with a per-seat pricing chart, capability matrix, decision tree, and migration playbook, cover every reason a Casetext user is searching for a new home in 2026.
❓ Frequently Asked Questions
Can I still subscribe to Casetext?
Not as Casetext. The product is now sold as Thomson Reuters CoCounsel, integrated with Westlaw and Practical Law.
Is CoCounsel still the same product?
It evolved. Thomson Reuters rebuilt CoCounsel on a multi-model backend in 2024 and tied it more tightly to Westlaw content.
What happened to Casetext's prior subscribers?
Existing accounts were migrated to Thomson Reuters billing. Pricing changed to enterprise tiers.
Are Casetext's open legal datasets still available?
The free case-law search was integrated into Westlaw. The standalone free product was sunset in 2024.