Legal professionals can now use an AI research agent across Claude, ChatGPT, and Trellis Chat, with access to more than 2.5 billion state trial court records, following Trellis's launch of the Trellis plugin for ChatGPT and Trellis Chat. These launches build on the recent Trellis MCP Connector for Claude. The capability combines agentic AI with the nation's largest state trial court dataset, allowing attorneys to ask legal research questions directly within Claude or ChatGPT, where Trellis connectors enrich conversations with relevant trial court data and litigation insights. Trellis Chat delivers the same experience natively within the Trellis platform. Users can describe a research goal, and AI agents can plan a research strategy, search billions of trial court records, cross-reference results against real verdicts, rulings, and motions, and verify citations. For example, an AM100 partner asked Claude Cowork to find factually similar California premises liability cases involving large retail stores, resulting in a memorandum with visualizations and charts delivered in seconds. State trial courts handle 98% of civil litigation in the United States, yet their records have historically been fragmented across thousands of jurisdictions.