A new open-source command-line interface (CLI) agent called Dirac has achieved a score of 65.2% on the TerminalBench 2.0 benchmark, outperforming its competitors. The agent was run in a leaderboard-compliant manner without any cheating. Dirac is fully open source and available on GitHub. The project highlights the importance of harness design in achieving high performance.
Dirac Open Source CLI Agent Achieves Top Performance on TerminalBench 2.0
AI
April 28, 2026 · 2:10 PM