GOOGLESPEECH-TO-SPEECH0 SAMPLES / 30 DAYS
Gemini 3.1 Flash Live (Preview) speech-to-speech benchmarks
Gemini 3.1 Flash Live (Preview). No dated, qualifying measurements are available in this window. Results cover the last 30 days. Coval benchmarks hosted endpoints daily using a consistent evaluation methodology. Each hosted endpoint is measured separately under the same benchmark conditions.
Gemini Live is Google's native-audio path for real-time spoken interaction.
Overview
Google's Live API accepts and returns audio in one bidirectional session rather than exposing separate STT and TTS endpoints.
Voice-to-voice latency comes from the call recording instead of provider-internal event timestamps.
Gemini 3.1 Flash Live (Preview) is tested on multi-turn simulated phone calls, measuring the pause before each reply and how closely it follows its instructions.
How fast is Gemini 3.1 Flash Live (Preview)?
No dated, ranked latency is available in this window.
How accurate is Gemini 3.1 Flash Live (Preview)?
No dated, ranked accuracy is available in this window.
Who hosts Gemini 3.1 Flash Live (Preview)?
Gemini 3.1 Flash Live (Preview) is created by Google and served by Google. Coval measures each hosted endpoint separately.
Limits of this comparison
Coval evaluates multi-turn simulated calls, measuring the pause a caller hears and whether the model follows its assigned instructions.
- The benchmark covers Coval's published call scenarios and clean-caller condition, not every Gemini capability, tool or language.
Official sources
Results are re-measured daily using fixed datasets and reported over a rolling 30-day window. Same datasets, prompts and metric definitions for every model, measured by Coval’s open-source runner. Full methodology on the overview.
Evaluate your own voice agent
Use Coval to test your production configuration, prompts and calls—not only the public benchmark endpoints.