Estimate speech API costs for STT and TTS with scenario presets, provider compare mode, billing increment assumptions, surcharge toggles, and monthly run...
Whisper (Speech-to-Text) is priced by the minute of audio processed, rounded to the nearest second. It is currently $0.006 per minute.
TTS-1 is optimized for low latency (real-time applications), while TTS-1-HD offers higher audio quality but may be slower. HD costs twice as much per character.
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