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Home › AI Use-Case Library › AI in legal work: 11 real deployments
Named deployments in legal work, grouped by industry.
launched in-house AI model post-trained on Moonshot's Kimi K3 to replace OpenAI and Anthropic APIs for legal AI services
Reported: gross margins collapsed from ~50% to -50% by June as token usage jumped 20x; margins swung positive after launching in-house model in August
Early adopter of OpenAI's Astra for Law, a GPT-6-powered legal research tool with a proprietary search index spanning more than 230 million URLs of US case law, statutes, regulations, and court rules
Early adopter of OpenAI's Astra for Law, a GPT-6-powered legal research tool with a proprietary search index spanning more than 230 million URLs of US case law, statutes, regulations, and court rules
Early adopter of OpenAI's Astra for Law, a GPT-6-powered legal research tool with a proprietary search index spanning more than 230 million URLs of US case law, statutes, regulations, and court rules
Early adopter of OpenAI's Astra for Law, a GPT-6-powered legal research tool with a proprietary search index spanning more than 230 million URLs of US case law, statutes, regulations, and court rules
piloting Gemini Enterprise for Legal with contract-review and regulatory-scanning skills and pre-built agents
Deployed proprietary Thomson LLM trained on Westlaw, Practical Law, Checkpoint and Reuters content inside CoCounsel Legal's Tabular Analysis feature for law firms and corporate legal departments
Deployed Harvey II legal AI platform featuring Memory that learns individual lawyer drafting style across Harvey, Word and Outlook, and Tenet, an in-house proprietary legal model trained on mock disputes and case files using a version of Moonshot's Kimi K3
Expert witness Josh Autenrieth used ChatGPT to produce approximately 85-90% of an expert report defending 3M in the Watson Grinding fatal explosion lawsuit, prompting it to show 3M is at zero fault
Reported: Jury awarded plaintiffs $61M assigning 30% fault to 3M; 350 pages of ChatGPT prompts entered discovery and were used to impeach the expert witness at trial
Thomson Reuters is deploying AI across legal, tax and regulatory workflows while reshaping its engineering organization.
Reported: The company confirmed up to 500 engineering layoffs and plans to hire more than 250 net-new, mostly senior AI-native engineers over two years.
HUD uses the DOGE-built SweetREX AI tool to analyze and rewrite federal housing regulations under a default assumption that rules should be rescinded.
Reported: DOGE claims a 90% reduction in rulemaking time and says the tool made decisions on 1,083 regulatory sections.
Every entry names the organisation and links its source. Outcome figures are quoted as reported, never estimated. Vendor announcements without a named customer are excluded. Halted and reversed deployments are kept on purpose.