FluxCap, Kanter's AI antitrust tool, launches for plaintiffs

Kanter's move into private-sector legal tech follows a stint running the Justice Department's Antitrust Division, where his team went to trial against Google twice and brought monopolization suits against Apple and Live Nation. The Division's resources were modest by comparison: Congress appropriated $245 million for fiscal year 2026, with more than 400 attorneys across several issue areas. Kanter says the imbalance is even greater for state attorneys general, where a large office might have 10 people working on a case.

During his time at the DOJ, Kanter and others tried AI-based legal tools but found them lacking for complex legal research. "Every antitrust lawyer has tried asking questions to ChatGPT or [AI legal research software] Harvey or one of those tools, and they do okay," he says. "But they miss the nuance." The Antitrust Division secured a $45.5 million grant from the government's Tech Modernization Fund to implement better tools for managing cases and reviewing evidence, but Kanter says his team never had the opportunity to put that to work before he left office.

FluxCap's team of former government lawyers spent months testing the system with existing and hypothetical test cases to see if it could help build a solid argument. Kanter acknowledges that technology alone cannot fully even the playing field, noting that government enforcers will always be outmatched and need more funding, budget and headcount. Even so, he says private defendants are likely to far outweigh anything the government could produce, and he positions FluxCap as a "great equalizer" for smaller legal teams.