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Core Transcription



Audio Intelligence

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Telephony



Video



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Models

Core Transcription

AI models to accurately convert audio files, video files, and live audio streams
into text at scale.

View all features



Audio Intelligence

AI models to summarize speech, detect hateful content, spoken topics, and more.

View all features

Use Cases
Telephony


Unlock rich, accurate data from call recordings


Video


Caption, categorize, and moderate video content


Virtual Meetings


Easily transcribe and analyze insights from virtual meetings


Media


Target and analyze media content from TV, podcasts, and radio

Pricing
Developers

Develop

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Learn

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Featured Resources

Introducing Conformer-1announcements

We've released our new Conformer-1 model for speech recognition. Conformer-1 was
trained on 650K hours of audio data and is our most accurate model to date.



How ChatGPT actually worksblog

Since its release, the public has been playing with ChatGPT and seeing what it
can do, but how does ChatGPT actually work?



Stable Diffusion 1 vs 2 - What you need to knowblog

Learn where the differences between the two models stem from and what they mean
in practice in this simple guide.

Playground
Try the API
NEW

Conformer-1, a state-of-the-art speech recognition model



ACCESS POWERFUL AI MODELS TO TRANSCRIBE AND UNDERSTAND SPEECH

Our simple API exposes AI models for speech recognition, speaker detection,
speech summarization, and more. We build on the latest state-of-the-art AI
research to offer production-ready, scalable, and secure AI models through a
simple API. Used by thousands of breakthrough startups and dozens of global
enterprises for mission-critical workloads.

Try the API

Contact sales

PythonTypeScriptPHPRubyC#

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import requests



endpoint = "https://api.assemblyai.com/v2/transcript"



json = {

  "audio_url": "https://storage.googleapis.com/bucket/b2c31290d9d8.wav"

}



headers = {

  "Authorization": "c2a41970d9d811ec9d640242ac12",

  "Content-Type": "application/json"

}



response = requests.post(endpoint, json=json, headers=headers)
AssemblyAI
parse(response)




Trusted by companies of all sizes — from startups to Fortune 500




JOIN OUR GROWING COMMUNITY OF AI DEVELOPERS


CALLRAIL AMPLIFIES CONVERSATION INTELLIGENCE WITH ASSEMBLYAI

Case Studyindustry

With AssemblyAI, CallRail has seen call transcription accuracy improve by up to
23% and has doubled the number of customers using its product.

Kelsey Foster

Marketing



HOW DALL-E 2 ACTUALLY WORKS

industryengineering


INTRODUCTION TO DIFFUSION MODELS FOR MACHINE LEARNING

blogengineering


WE'RE LOVED BY COMPANIES OF ALL SIZES

From startups to Fortune 500 companies, businesses of all sizes use AssemblyAI's
API everyday.


AFTER TESTING TRANSCRIPTION APIS FROM SOME OF THE LARGEST COMPANIES IN THE
WORLD, WE WERE PLEASANTLY SURPRISED TO FIND THAT ASSEMBLYAI IS THE MOST ACCURATE
API ON THE MARKET TODAY.

Jeremy Helms/Co-Founder, WhatConverts

ASSEMBLYAI TRANSCRIBES OUR CUSTOMERS PHONE CALLS. SOLID TRANSCRIPTION ACCURACY
(WE TESTED A NUMBER OF COMPETITORS, AND THEY WERE THE BEST) WITH GREAT CUSTOMER
SERVICE. THE TEAM GOES ABOVE AND BEYOND.

Bradley Blaser/Co-Founder & CEO, Liine

ASSEMBLYAI IS SO GREAT BECAUSE YOU CAN MAKE AN API REQUEST WITH A MEDIA FILE,
AND BOOM, YOU GET A NICE, INTUITIVE JSON FORMATTED TRANSCRIPT RESPONSE. YOU CAN
ALSO ADD PARAMETERS TO GET SPEAKERS, TOPIC ANALYSIS, PERSONAL INFORMATION
DETECTION, AND IT'S JUST A MATTER OF CHANGING THE PAYLOAD IN THE FIRST API
REQUEST.

@rememberlenny/Hacker News

Built for developers


EVERYTHING DEVELOPERS NEED TO QUICKLY BUILD EXCITING NEW PRODUCTS

From in-depth tutorials, to detailed changelogs, to comprehensive documentation,
AssemblyAI is focused on providing developers a great experience every step of
the way.

Get started


DOCUMENTATION

Product overview

Detailed walkthroughs

Video tutorials

Industry updates

View documentation


CHANGELOG

Version updates

New feature releases

Bug fixes

Product improvements

View changelog

CLIsentiment.pytranscription.tschapters.rb

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assemblyai transcribe "https://www.youtube.com/watch?v=j9C3eebCQX0" \

  --sentiment_analysis 

  --auto_chapters

  --redact_pii

  --redact_pii_policies "medical_condition,injury"




Models


TRANSCRIBE AND ANALYZE AUDIO WITH AI MODELS BUILT ON THE LATEST RESEARCH

Build AI-powered features by embedding state-of-the-art AI models through our
simple API.

Get started


CORE TRANSCRIPTION

Async transcription

Real-time transcription

Speaker labels

International languages

See all models


AUDIO INTELLIGENCE

Summarization

Sentiment analysis

PII redaction

Entity detection

See all models




TRUSTED BY 6,000+ BUSINESSES

ASSEMBLYAI FOR STARTUPS

We work with startups of all sizes - from early-stage startups to scale-ups - by
providing cost-efficient speech-to-text solutions.
View pricing


ASSEMBLYAI FOR ENTERPRISES

We're built for scale. We process millions of audio files every day for hundreds
of customers, including dozens of Fortune 500 enterprises.
Learn more


ASSEMBLYAI FOR DEVELOPERS

We provide comprehensive support to developers through our in-depth tutorials,
detailed documentation, and changelog.
Read the documentation



POWERFUL AI MODELS, SIMPLE API

Built for developers



Powered by AI

Get started with the API

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