Features

PII Redaction

Remove personally identifiable information from every transcript — redacted in the text and bleeped from the audio itself — in a single API call. The compliance anchor for production Voice AI.

Use our API

Get started with less than 10 lines of code

Enable PII Redaction in your transcription request and receive a transcript with sensitive information already removed — no separate post-processing pipeline to build or maintain.

See how in docs

Redact 60+ categories of PII

Names, phone numbers, email addresses, credit card and account numbers, social security numbers, medical conditions, and locations — identified and removed automatically.

See supported types

Text and audio in one call

Replace sensitive spans in the transcript with labels or hashes, and generate a copy of the audio with those spans bleeped — from the same request.

See how in docs

Built for regulated teams

Data minimization by default for teams with GDPR, PCI, and privacy obligations. Business Associate Addendum (BAA) available.

See security

Use cases

Redact sensitive data everywhere it’s spoken

Ship Voice AI that handles personal data safely — from contact centers to healthcare.

Protect customer data in call recordings

Remove sensitive data before storage

Meet GDPR and PCI obligations

Share recordings safely for QA

Scrub payment details from support calls

Redact audio for compliance archives

Minimize data in analytics pipelines

Keep training data free of PII

Join 200K+ developers building new experiences with voice data

The transcription accuracy, reliability, and speed of AssemblyAI's API have greatly enhanced our operations.

Raj Shankar

SVP Product, Calabrio

If you have an hour of content, the difference between 99% accuracy and 97% accuracy, it's a lot of time for that person to review. So you could cut down their workflow from taking half an hour, to 20 minutes, to 15 minutes — it's huge, right?

Joshua Grossberg

CTO, Kapwing

Investments in STT improvements always pay for themselves, since it is such a critical building block of the voice pipeline.

Lindsay Liu

Co-Founder & CEO, Super

AssemblyAI's managed API endpoint and diarization won me over — something Whisper couldn't provide.

Josh Mohrer

Founder, Wave.co

We needed a provider that could scale with us — offering unlimited concurrent streams, fair pricing, and responsive support.

Mark Barbir

CEO, Earmark

Our free to paid conversion rate doubled after implementing AssemblyAI.

Colin Treseler

Founder & CEO, Supernormal

The accuracy was strong, but the great documentation and unique models like Auto Chapters and Sentiment Analysis is what really won us over.

Nathan Webb

Product Manager, Aloware

Calls are and will remain a pertinent part of the customer service journey. Customer service isn't moving entirely to chatbots or chat interactions.

Dr. Shane Lynn

CEO, EdgeTier