AssemblyAI
Speech-to-text APIs for recorded and streaming audio, with model-dependent speech-understanding options.
Pricing to verifyUniversal-3.5 Pro async: $0.21/hour
Voice & Audio
Deepgram
Speech APIs for recorded transcription and real-time voice applications, with model-specific recognition and conversation features.
What it does
Speech APIs for recorded transcription and real-time voice applications, with model-specific recognition and conversation features.
Who it is for
Developers evaluating both recorded speech and live conversational workloads.
What stands out
- Recorded and streaming transcription
- Nova speech recognition
- Flux conversational turn detection
Limitations to consider
- Model, language mode, streaming behavior, and add-ons change the bill and need separate evaluation.
Integrations & connections
Tasks it can help with
Sources & verification
This profile is based on vendor documentation, checked Sep 17, 2026. It is not a hands-on review or a performance benchmark. Unknown details are marked explicitly.
Speech-to-text productOfficial pricingSuggest a correctionRead before you decide
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