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AssemblyAI · Speech to text
AssemblyAI's mainstream asynchronous transcription model; also its streaming tier.
Pricing
$0.0025 /min
Async billed on audio duration ($0.15/hr). Streaming is quoted at the same rate but billed on WebSocket session wall-clock, so its effective per-minute cost can be higher.
Source: https://www.assemblyai.com/pricing, as of Jul 6, 2026