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AssemblyAI Review: Speech-to-Text and Audio Intelligence API

Audio Speech-to-text and audio intelligence API for developers

Price

— Monthly

Free plan

yes (Free: $50 credits, ~185 pre-recorded hours)

Best for

Developers building transcription, summarization or audio analysis features into their own applications.

AssemblyAI is an API for speech-to-text and audio intelligence, built for developers who need transcription inside their own products. It is not a consumer app but a service you integrate into software.

Value for money

Monthly 100

✓ Free plan

Pros

  • Developer-first API with strong accuracy plus speaker labels and summaries.
  • The free tier provides 50 dollars of credits, roughly 185 hours of prerecorded audio.
  • Pricing is usage-based, so you pay for what you process.

Cons

  • There is no consumer app, so it is useless unless you can code.
  • Costs scale with volume, and heavy transcription adds up.
  • You manage your own storage and workflow around the API.

Monthly budget calculator

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Estimated yearly cost: $0

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Frequently asked questions

Is there a monthly subscription?
No, it is usage-based with a free 50 dollar credit to start, so you pay as you process audio.
Can a non-developer use it?
It is an API, so it requires programming; non-coders should look at app-based tools instead.