Independent benchmarks for voice AI.
Reproducible, independent benchmarks of voice-AI providers - speech-to-text, text-to-speech, speech-to-speech, and the LLMs that drive voice agents. Every result is built to be re-run on each new model release.
Leaderboards
STT published
Speech-to-Text
Accuracy, speed, and cost on clean English audio.
view leaderboard TTS Coming soon
Text-to-Speech
Voice quality, latency, and pricing across leading TTS providers.
coming soon S2S Coming soon
Speech-to-Speech
End-to-end latency, reasoning, and cost for realtime voice models.
coming soon LLM Coming soon
LLM (Voice Agents)
Cost, context, and throughput for LLMs driving voice agents.
coming soon