AssemblyAI Voice Agent API pricing and plans (Oct 2026)
AssemblyAI Voice Agent API pricing at a glance: Voice Agent API $4.50/hr (about $0.075/min) all-in: real-time speech-to-text, turn detection, its Voice Agent LLM, text-to-speech and hosting, billed per second; speech-to-text from $0.15/hr; free tier (no card) includes up to 185 hours of pre-recorded and 333 hours of streaming transcription; volume pricing via sales. Checked on assemblyai.com.
Speech-to-text API provider with an all-inclusive Voice Agent API for building AI phone agents.
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| Starting price | See vendor |
|---|---|
| Pricing details | Voice Agent API $4.50/hr (about $0.075/min) all-in: real-time speech-to-text, turn detection, its Voice Agent LLM, text-to-speech and hosting, billed per second; speech-to-text from $0.15/hr; free tier (no card) includes up to 185 hours of pre-recorded and 333 hours of streaming transcription; volume pricing via sales |
| Pricing model | usage |
| Free trial | — |
| Free plan | Yes |
| Channels | phone |
| Categories | Voice AI & Dialers |
| Sources | |
| Last verified |
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FAQ
How much does AssemblyAI Voice Agent API cost?
Voice Agent API $4.50/hr (about $0.075/min) all-in: real-time speech-to-text, turn detection, its Voice Agent LLM, text-to-speech and hosting, billed per second; speech-to-text from $0.15/hr; free tier (no card) includes up to 185 hours of pre-recorded and 333 hours of streaming transcription; volume pricing via sales (checked 2026-10-27 on the vendor's site).
Does AssemblyAI Voice Agent API offer a free trial?
We did not find a free trial on the vendor site.
Does AssemblyAI Voice Agent API have a free plan?
Yes, the vendor's pricing page lists a free plan.
What are the best AssemblyAI Voice Agent API alternatives?
See our list of AssemblyAI Voice Agent API alternatives at https://thesdrlist.com/alternatives/assemblyai/, which covers tools in the same categories, and head-to-head comparisons such as AssemblyAI Voice Agent API vs Deepgram Voice Agent API, AssemblyAI Voice Agent API vs Vapi.
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