Attorneys preparing for depositions often rely on mentoring, in-firm simulations and limited live practice opportunities to rehearse different scenarios. DepoSim, a new AI platform developed by Verbit and AltaClaro, brings part of that preparation into a simulated environment where attorneys can practice legal scenarios with virtual participants, repeat complex situations and receive performance analysis.
The platform, which is now in use in the U.S., uses AI agents to simulate different roles in the deposition process, including witnesses, opposing counsel and a court reporter. During the simulation, attorneys conduct full deposition exercises and then receive analysis and feedback designed to help identify areas for improvement and prepare for real-world proceedings. Similar to flight simulators used to train pilots, DepoSim enables attorneys to practice a wide range of scenarios, test different strategies and repeat the same exercise multiple times.
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The platform, which is now in use in the US, uses AI agents to simulate different roles in the deposition process, including witnesses, opposing counsel and a court reporter
(Photo: Verbit)
The product combines Verbit’s voice and AI technologies with AltaClaro’s expertise in simulation-based legal training. Rather than relying on a single AI character, DepoSim uses multiple coordinated agents that simulate different roles in the legal process and interact with one another and with the attorney. Attorneys can select characters with different attributes, such as a hostile, aggressive, talkative, evasive or reserved witness, and practice against behavioral styles they may encounter in an actual deposition.
At the end of each simulation, the system analyzes the participant’s performance using a set of approximately 20 additional AI agents that evaluate around 40 aspects of the deposition and generate recommendations for improvement. The approach places DepoSim within a broader shift toward agent-based AI systems that can simulate complex professional environments, support repeated practice and provide performance feedback, rather than only respond to one-off user requests.
In a pilot with six U.S. law firms from the Am Law 100, participants logged more than 160 hours of use, with 97% saying DepoSim was valuable for litigation training and 94% saying they would use it again. Five of the six firms that participated in the pilot chose to continue with the platform as paying customers and use it in their regular firm workflows.
“The challenge in developing DepoSim was to build a training environment that mirrors the dynamics of a deposition, not just another conversation with a language model,” said Simon Rapoport, CTO at Verbit. “That meant creating realistic personas and behaviors: witnesses who may be hostile, evasive, inconsistent or difficult to read, and opposing counsel who may raise objections, apply pressure or challenge the attorney’s approach. A real deposition involves multiple participants, each with a role, style, objective and way of responding. The system has to recreate that dynamic closely enough for attorneys to practice navigating it and build practical deposition skills.
“That required bringing together several types of agents: some participate in the simulation itself, while others analyze performance afterward. This is a meaningful step in how AI can be used in professional environments: not only to perform tasks for users, but to help them practice, improve and make better decisions.”
Verbit is a verbal intelligence platform that helps organizations capture spoken audio and video, understand the information being shared and apply those insights in daily work. Its voice AI solutions support speech-intensive industries and use cases across legal, media, education, corporate and events. For legal teams, Verbit has also developed Legal Visor, an AI tool that helps attorneys analyze transcripts and testimony, identify inconsistencies and key information, and receive real-time insights during legal proceedings.