How Law&Company Uses Claude to Capture 20% of Korean Lawyers in 180 Days
Law&Company built SuperLawyer, an AI legal assistant powered by Claude, that achieved 6,000 users—approximately 20% of South Korean practicing lawyers—within 180 days of launch. The platform delivers a 1.7x efficiency gain for lawyers, saving 25 minutes per work hour and collectively saving 2.3 million work hours across its user base.
Impact
6,000 in 180 days
Users acquired
60.2%
Free-to-paid conversion rate
79.1%
Second-month retention rate
1.7x
Efficiency increase per lawyer
25 minutes
Time saved per work hour
2.3 million
Collective work hours saved
Challenge
South Korean lawyers spent excessive time on routine document preparation and legal research, but existing AI tools lacked the Korean legal language quality needed for professional adoption.
Solution
Law&Company built SuperLawyer on Claude with a RAG framework for grounded legal research, leveraging Claude's superior Korean legal writing capability to automate document generation and research tasks.
Tools & Technologies
What Leaders Say
“Claude demonstrates exceptional capabilities in generating Korean legal documents. Its advanced knowledge and understanding of legal matters, combined with extensive training in Korean enables it to outperform other models in producing high-quality legal writing.”
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Full Story
South Korean legal professionals have long operated under significant time pressure: document preparation, legal research, and drafting routine filings consume hours that could otherwise go toward complex client work. Law&Company recognized that the Korean legal market was ripe for AI-assisted automation but required a model capable of nuanced Korean legal writing—not just translation-quality output.
The company built SuperLawyer on Claude, using a Retrieval Augmented Generation framework to ground responses in relevant legal data before generation. This approach directly addressed the hallucination risks that make lawyers skeptical of AI tools. Claude's function-calling capabilities organize generated content according to specific user requirements, producing structured legal documents rather than freeform text.
Claude's superiority in Korean legal writing was the decisive technical factor. The model's extensive training in Korean language combined with its deep legal knowledge produced output that practicing lawyers judged as genuinely useful rather than a starting point requiring heavy editing. This quality threshold was essential for professional adoption.
The market response exceeded expectations by almost any measure. Within 180 days, SuperLawyer had acquired 6,000 users—roughly 20% of all practicing lawyers in South Korea. The free-to-paid conversion rate reached 60.2%, and 79.1% of users returned for a second month. These engagement metrics reflect genuine utility: lawyers using the platform report a 1.7x efficiency increase, saving 25 minutes per work hour. Across the user base, that compounds to 2.3 million collective work hours saved in the first six months alone.
