AssemblyAI's logo. A blue illustration on the left, and the word Assembly A I on the right. The illustration is the letter V inverted. Why? I don't know either. Looks cool though.
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Pricing

Simple billing for companies of all sizes

With our Pay-As-You-Go pricing, you'll always have full transparency over how much you're paying for our services.

Core Transcription

$0.00025

PER SECOND

Automatically convert audio and video files, and live audio streams, into accurate transcriptions with a simple API. Powered by cutting-edge research into Automatic Speech Recognition.

Async transcription

Real-time transcription

Process multiple files & streams in parallel

State-of-the-art accuracy

Billed per second transcribed

Try now for free

Audio Intelligence

$0.000583

PER SECOND

*in addition to Core Transcription pricing

Leverage cutting-edge AI research to build powerful applications and features with higher ROI. Extract summaries and topics, detect sensitive content and sentiment, and more with Audio Intelligence.

Summarization

Sentiment Analysis

Entity Detection

PII Redaction

Content Moderation

Try now for free

Calculate your price

What products will you be using?
Core Transcription$0.00025/second
Automatically convert audio and video files, and live audio streams, into accurate transcriptions with a simple API. Powered by cutting-edge research into Automatic Speech Recognition.
Audio Intelligence$0.000583/second
Leverage cutting-edge AI research to build powerful applications and features with higher ROI. Extract summaries and topics, detect sensitive content and sentiment, and more with Audio Intelligence.
How many hours do you expect to transcribe?
Pay only for what you use with Pay-as-you-Go billing, per second of audio processed by the API.
hours/month
AUTOMATICALLY INCLUDED
State-of-the-art accuracy
Our APIs are backed by years of research in AI models for speech recognition and NLP.
24x7 Support
Our support engineers are standing by 24x7 over live chat, email, Slack, and phone.
SOC 2 and GDPR certified
We're committed to security, and routinely undergo monitoring and audits by third-party organizations.
Built for scale
Companies of all sizes rely on AssemblyAI to handle millions of API calls every day.
Your estimate

$900/mo

Billed monthly

Frequently asked questions

Can I sign up for free?

Yes! You can use the API for free on a limited trial. Simply add a credit card to your account at any time to upgrade from the trial.

Do you offer volume discounts?

Absolutely! If you plan to send large volumes of audio and video content through our API, please reach out to support@assemblyai.com to see if you qualify for a volume discount.

How fast does it take for audio and video files to process?

Files take around 25% of their duration to process. For example, a 20 minute audio or video file would take 5 minutes to process.

How does billing work?

Great question. Once you add a credit card and deposit funds into your account, your account's funds will be drained as you use the API.

How can I talk to someone?

Feel free to email us at support@assemblyai.com, or click the chat button in the bottom right corner of your browser to chat live with our API Support team!

What languages do you support?

We support over 15 languages and counting, including Global English (English and all of its accents).

Companies of all sizes trust AssemblyAI

Join them today.