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How to Evaluate Live Voice Agents in ADK

First seen · 9/8/2026, 08:06 AMLatest activity · 9/8/2026, 08:06 AM

Transitioning live voice agents from prototypes to production often stalls on the unpredictability of multi-turn spoken dialogue. Google's Agent Development Kit (ADK) introduces native live evaluation, employing LLM-driven personas that emit synthetic speech via Gemini TTS to stress-test graph-based agent workflows. The system automatically grades audio replies and tool executions against natural-language rubrics, with results inspectable through ADK Web or integrated into automated CI/CD runs.

Event heat · last 24 hours

There are 8 persisted snapshots in the last 24 hours. Peak heat was 10 at 9/12, 11:00; latest heat is 10.

There are 8 persisted snapshots in the last 24 hours. Peak heat was 10 at 9/12, 11:00; latest heat is 10.10509/12, 11:00, event heat 109/12, 14:00, event heat 109/12, 17:00, event heat 109/12, 20:00, event heat 109/12, 23:00, event heat 109/13, 02:00, event heat 109/13, 05:00, event heat 109/13, 08:00, event heat 1024 hours agoNow
  1. 9/12, 11:00, event heat 10
  2. 9/12, 14:00, event heat 10
  3. 9/12, 17:00, event heat 10
  4. 9/12, 20:00, event heat 10
  5. 9/12, 23:00, event heat 10
  6. 9/13, 02:00, event heat 10
  7. 9/13, 05:00, event heat 10
  8. 9/13, 08:00, event heat 10

Reporting Timeline

  1. OfficialGoogle Developers Blog9/8, 08:06 AMRepresentative
    How to Evaluate Live Voice Agents in ADK