LiveKit launches Agent Simulations for testing voice agents

LiveKit has made Agent Simulations generally available for all LiveKit Cloud projects, a repeatable way to test voice agents at the task level rather than turn by turn. An LLM-driven simulated user plays out each scenario, including backchannels and interruptions in audio mode, and an LLM judge returns a pass/fail verdict with a reason; a CLI can generate scenarios from the agent's own prompts and tools. Text runs are the default and cheap enough for every pull request, while audio runs cover the full pipeline and are better suited to nightly or pre-release schedules. Simulations are free through October, though they call the real agent's LLM, STT and TTS at normal rates.