Run benchmark

Pick a backend and voice, set run count, then measure synthesis latency and real-time factor (RTF). RTF < 1.0 means the backend generates faster than real-time.

Results

Latency per run. RTF = synthesis time ÷ audio duration (lower is better, <1.0 is real-time capable).

Batch benchmark

Benchmark multiple voices in one run. Pre-populated from your active My Voices — or reload from the backend. Results are sorted fastest first and saved to History.

Uses the sample text from the single-voice form above.

Batch results

Sorted fastest RTF first. Green = real-time capable (<1.0). Trend compares to the previous session for each voice.

History

Last 50 benchmark sessions saved in your browser. Each row is one run session — click the backend/voice to pre-fill the form above.