Liberty Mutual deployed LibertyGPT, a secure internal generative AI platform built on OpenAI's models, to its approximately 45,000-person workforce starting in 2023. The tool helps employees summarize information, answer questions, and automate repetitive knowledge-work tasks across departments including underwriting, claims, tech, and marketing.

LibertyGPT is an internal, non-public version of ChatGPT integrated into Liberty Mutual's operations. The company later built a 'model hub' allowing employees to choose from multiple AI models beyond OpenAI, and created centralized summarization workflows to avoid duplicate efforts. As of early 2026, the platform is reported to be used by approximately 74% of employees, up from roughly 25% in late 2024, with early adopters saving an average of 1.5 hours per week. The rollout was paired with training, prompt libraries, workshops, and governance guardrails overseen by a Responsible AI Steering Committee.