getSessionMetrics method

@override SessionMetrics getSessionMetrics()

Get session metrics including token usage and performance stats.

FFI (LiteRT-LM): Returns accurate token counts from benchmark info. MediaPipe (Mobile): Returns estimated counts (uses internal metrics if available).

Call this after getResponse or getResponseAsync completes for accurate results.

Implementation

@override
SessionMetrics getSessionMetrics() {
  return ffiClient.getSessionMetrics();
}