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AssemblyAI

by AssemblyAI

Speech-to-text and audio AI API.

Reviewed by the Softwares.com Editorial Team · Last updated June 2026 · How we rate

AssemblyAI screenshot

Key facts

Vendor
AssemblyAI
Pricing
Usage-based — Free
Free tier
Yes
Platforms
Web, Api
Best for
Developers
Editor rating
4.6 / 5
Founded
2017
Headquarters
San Francisco, CA, USA

What is AssemblyAI?

AssemblyAI is a ai audio tool from AssemblyAI. AssemblyAI provides accurate speech-to-text, summarization, and audio intelligence APIs.

AssemblyAI uses usage-based pricing and offers a free tier you can start on without a credit card. Free.

It's best suited to developers and runs on Web, Api.

Standout strengths include accurate transcription, rich audio models, good docs. Worth weighing: usage costs at scale.

AssemblyAI pricing

Pay as you go
Custom
Get Pay as you go

Pros

  • Accurate transcription
  • Rich audio models
  • Good docs

Cons

  • Usage costs at scale

AssemblyAI vs alternatives

See all AssemblyAI alternatives →

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User reviews

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Frequently asked questions

What is AssemblyAI?

AssemblyAI provides accurate speech-to-text, summarization, and audio intelligence APIs.

How much does AssemblyAI cost?

AssemblyAI is usage-based-priced. It has a free tier.

Does AssemblyAI have a free trial?

AssemblyAI offers a free tier rather than a time-limited trial.

What platforms does AssemblyAI support?

AssemblyAI is available on Web, Api.