AssemblyAI

5.0(23 reviews)

Build Voice AI Apps With Insanely Accurate Speech-to-Text

Freemium

AssemblyAI Overview

What is AssemblyAI?

AssemblyAI provides AI models specifically designed for speech recognition and analysis. Its offerings include robust and accurate speech-to-text capabilities with applications such as transcribing calls, virtual meetings, podcasts, building voice agents and medical scribes. The company's AI models are equipped with features such as speaker diarization and identification, sentiment analysis, summarization, and PII redaction, offering a comprehensive solution for converting voice data into actionable insights. AssemblyAI's Universal STT model is touted to be a highly accurate, multilingual Speech AI model designed to handle 99+ languages and accents. AssemblyAI's technology is available through an API, meaning developers can incorporate their speech AI into applications with less hassle. Continuous improvements and updates ensure users always have access to the latest AI technology. Rates are flexible, and customers are charged solely based on their exact usage of the AssemblyAI models. Not just limited to providing advanced technology, AssemblyAI also places a strong emphasis on customer support and a readily available team of AI experts. Help other people by letting them know if this AI was useful. Add your own prompts and outputs to help others understand how to use this AI.

Screenshot gallery

AssemblyAI screenshot

Pros & Cons

Pros

  • State-of-the-art research integration
  • Capable of understanding audio
  • Transcribes live audio streams
  • Used by global enterprises
  • Proven transcription accuracy increase
  • In-depth tutorials for support
  • Comprehensive API documentation
  • Robust speech-to-text capabilities
  • Specifically designed for speech recognition
  • Speaker detection
  • Sentiment analysis
  • Chapter detection
  • PII redaction
  • API facilitates easy integration
  • Continuous improvements and updates
  • Flexible, usage-based rates
  • Strong emphasis on customer support
  • 24/7 customer assistance
  • User-friendly integration with applications
  • Integrates with virtual meeting platforms
  • Applicable in tech development
  • Optimised for voice data analysis
  • Data insights from voice calls

Cons

  • No tts
  • No offline capabilities
  • No mobile application
  • API centric, less user-friendly
  • Unspecified update schedules

A Professional Framework to Evaluate AssemblyAI

When considering AssemblyAI for integration into your organizational workflow, we recommend deploying a structured score card across three critical operational pillars: Security & Compliance, Integration Friction, and long-term Price Scalability. Rather than looking only at basic feature lists, modern procurement teams must assess how a software platform behaves under high load and how well it fits into the team's data security guidelines.

1. Security and Database Compliance

Depending on your operating region and field, ensure that AssemblyAI supports standard security layers such as SOC 2 Type II certifications, GDPR compliance, or HIPAA-compliant database encryption. If the tool connects directly to client database tables or handles user passwords, verify that they implement multi-factor authentication (MFA), single sign-on (SSO) integrations, and end-to-end data encryption in transit and at rest.

2. API Coverage and Custom Integrations

Siloed data is the primary cause of operational friction. Evaluate if AssemblyAI has native connectors for your current project trackers, messaging hubs, and customer communication channels. For custom developer requirements, check if they provide a fully documented REST API with reasonable rate limits, comprehensive Webhooks support, and robust SDK packages in your language. A flexible API layer saves hundreds of hours of manual copy-paste overhead.

3. Total Cost of Ownership (TCO)

SaaS pricing packages are often deceptively simple. When reviewing AssemblyAI's billing structure, map out your team's projected expansion over the next 12 to 24 months. Determine how costs scale as your customer database increases or as you add team members. Factor in setup costs, mandatory support plan upgrades, API access fees, and storage overage rates to understand the true cost before committing to a contract.

By combining verified user reviews from our directory with internal workflow pilot tests, your procurement team can make an informed decision that drives productivity without creating capital waste.

Features of AssemblyAI

  • Conversation Intelligence
  • Real Time Speech To Text
  • Voice Agents
  • Voice AI
  • Speech Recognition
  • Voice Data
  • Free + From $0.21

SaaS1to10 verified reviews for AssemblyAI

Overall rating

5.0

Based on 23 reviews

5.01 days ago

Review

One day and I Love it!

Patrizia Isaija

5.01 days ago

Review

this is so good, i pasted a youtube link of 40 mins long video and it gave me a clean text nice to read and i didn’t find any mistakes. best part it only took 2 mins maybe less

beni1

5.02 weeks ago

Review

One of the most accurate API's I've used for speech to text and summarization. Cost effective w/ bulk contracts too.

Mery

5.02 weeks ago

Review

It's ok - English pre-recorded transcription is good. But if I need accuracy in real-time with lots of people talking and noisy background it tends to fall over. With the right use case, @AssemblyAI is good enough - but with my specific audio requests, it's a bit hit and miss.

Andrew Hathaway

5.02 weeks ago

Review

I joined Kin's beta program on my iPhone XR. After upgrading to an iPhone 13, I found that I couldn't log into my existing account on the new phone, forcing me to create a new account. Now, I have two separate Kin accounts on different phones. Today, when I accessed the beta version of Kin, I got a notification stating that the test version ended on Monday, September 23rd. It instructed me to back up my data and move to the official Kin app. I did as advised—backed up my data, confirmed, uninstalled the beta app via TestFlight, and installed the official Kin app. However, when I attempted to “log in”, I was still unable to access my existing account. This issue hasn't been resolved yet. I have been trying desperately to get in contact with the support team. I left feedback through the test flight app and sent emails. No response. Now trying to find a forums, Reddit posts, TAAFT comments☻

Desiree Miller

5.02 weeks ago

Review

Suppppeeeeerrr! Wowwww! @Mindsmith is absolutely fantastic! It is incredibly useful, easy to use, and very professional.

Claudia Scilletta

5.02 weeks ago

Review

I tried using it but the website has too many bugs.

João Neiva

5.02 weeks ago

Review

interesting ai tool!!!!!!!!

Expected :[tru]e

5.02 weeks ago

Review

Best font app I ever tried. Because it is really simple and effective.

Alice Peyrol

5.02 weeks ago

Review

Now here's an application where ML can shine. Translation quality is usually excellent, especially if the target language is English. Probably the closest you can get to a decent translation short of hiring a professional translator.

Daniel Saner

5.02 weeks ago

Review

I've been playing around with this for a few hours. It's made me say "WOW" too many times than i wish to admit. I'm going to follow this and see how it evolves. For now, i managed to create quite a nice Expenses app for personal use. | It did have some problems when it came to moving some components on other pages, but for how short the prompts it uses can be, it is really impressive. With some proper prompts it can generate some strong stuff.

Bernard

5.02 weeks ago

Review

It's genius. Amazing tool. PDF generation might be improved, but apart from that is amazing.

Aleksander Lukashou

5.02 weeks ago

Review

Went from a C to an A in Cognitive Psychology using @Thea!!

Sarah White

5.02 weeks ago

Review

Works but I cannot understand what's the use. I was expecting it to give me some videos

Samartha Venkatramana

5.02 weeks ago

Review

O GPT faz uma análise melhor e mais personalizada.

Vinicius Vilela

5.02 weeks ago

Review

I think it's the best @Image Generator I ever found on the net. It gives more accurate image according to the prompt. And thank you for keeping it for free.

My Sawsiri

5.02 weeks ago

Review

Insanely useful

S Rohan Karthik

5.02 weeks ago

Review

B12 exceeded my expectations especially after I tried a few similar tools. Signing up took under a minute and because I offer a very specific set of services as a consultant, I didn't expect the AI to be able to capture my work, but it did a great job with creating content for me. I only had to make a few edits, add my bio, and was able to publish that same day. Now I get lots of compliments on my site and I've even tried their other tools like email marketing, which is great because the emails match my site's appearance. Overall I would recommend B12 as an effective, affordable, and easy to use website solution.

Katie G

5.02 weeks ago

Review

Before registration, it was free, but after downloading to your computer, it became paid.

Виталий Губин

5.02 weeks ago

Review

the founder is cool, definitely a recommendation if you have personal requests and grow the app along with you.

Samik Choudhury

5.02 weeks ago

Review

This is my favourite, so handy and works brilliant

Colin Fitzpatrick

5.02 weeks ago

Review

No other tool quite like this, it's pretty straightforward. Needed to extract a long interview from YouTube and it extracted everything, providing it in different meaningful formats in less than two minutes. Awesome

Juan Sierra

5.02 weeks ago

Review

I already have another transcription tool, but this one is much better. I love the different features such as the summary, quiz, and chapters. It does a great job of them. I've only done one transcript so far to try it out, but I'm truly impressed and am going to grab another code. A couple things that would make it even better are: - the ability to rename the files and organize them through folders. - the ability to download a copy of the other features as well as the transcript. Copying and pasting it works, but doesn't keep the format.

dunn

Pricing

Starting Price

Free plan available

Free tier available with optional paid upgrades.

Where can AssemblyAI be deployed?

  • Cloud, SaaS, Web-Based

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