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AssemblyAI vs Microsoft Azure Speech Service comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

AssemblyAI
Ranking in Speech-To-Text Services
5th
Average Rating
8.0
Reviews Sentiment
6.1
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Microsoft Azure Speech Service
Ranking in Speech-To-Text Services
2nd
Average Rating
9.0
Reviews Sentiment
7.7
Number of Reviews
3
Ranking in other categories
Text-To-Speech Services (4th)
 

Mindshare comparison

As of May 2026, in the Speech-To-Text Services category, the mindshare of AssemblyAI is 6.1%, down from 9.1% compared to the previous year. The mindshare of Microsoft Azure Speech Service is 15.8%, down from 23.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Speech-To-Text Services Mindshare Distribution
ProductMindshare (%)
Microsoft Azure Speech Service15.8%
AssemblyAI6.1%
Other78.1%
Speech-To-Text Services
 

Featured Reviews

Khemit Verma - PeerSpot reviewer
Full Stack Developer at a tech services company with 11-50 employees
Accurate transcripts with clear grammar have supported reliable speaker-based dialogue analysis
A few drawbacks I observed in the speaker identification are that in some videos where text and names appear on the video frames, AssemblyAI does not identify the actual speaker name, instead providing generic names such as Speaker A, Speaker B, Speaker C, or Speaker X, Y, Z. AssemblyAI does not identify the real speaker in some audio or video files, just sending Speaker A, Speaker B, or Speaker C. They are not easily identifying speakers in some instances. AssemblyAI does not provide a cloud service; I simply upload the audio file to the API, and they store it somewhere internally to send me the transcription text. For additional functions, the API does not provide video uploading functionality, and I need to convert video to audio first before uploading it to AssemblyAI.
Abhishek-Rana - PeerSpot reviewer
Student at Graphic Era Hill University
Offers ease of use and the availability of documentation is great
The simplicity impressed me the most. We just needed a single API key. The documentation was also great. I developed the AI application using Unity, a game engine that uses C#. Then, I searched online for instructions on how to use it. I found Microsoft's GitHub repository, which provided the necessary code for integrating the Speech Service into Unity with C#. The ease of use and the availability of documentation made the process smooth and impressed me the most. The documentation and boilerplate code [a template of code] was available, which I incorporated into my application with modifications. Initially, the code functioned so that when a button was clicked, the microphone would activate and recognize my speech. One of the benefits was the ability to see my spoken words visually on the screen as I spoke. For example, if I said "I am Abhishek Rana," I could see the sentence appear in real-time. When I stopped speaking, it automatically recognized the silence and ceased, sending the text for further processing. So, the real-time translation feature has helped me a lot.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The primary benefit I receive from their product is much more accurate transcription; first, it is a very affordable service, and second, the accuracy is much better compared to other services such as Deepgram or AWS transcription services, which are the main benefits."
"Overall, in my opinion, the transcription service is rated as ten out of ten."
"Useful text-to-speech and speech-to-text features."
"The documentation and boilerplate code [a template of code] was available."
 

Cons

"AssemblyAI should respond more quickly because when I post a ticket, they take too much time to respond to it."
"It can improve based on the native language."
"Lacks a voice recording option."
"The product is limited when it comes to integrating with different platforms and using many other APIs."
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Top Industries

By visitors reading reviews
No data available
Computer Software Company
8%
Comms Service Provider
8%
Manufacturing Company
7%
Educational Organization
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

What needs improvement with AssemblyAI?
A few drawbacks I observed in the speaker identification are that in some videos where text and names appear on the video frames, AssemblyAI does not identify the actual speaker name, instead provi...
What is your primary use case for AssemblyAI?
I use AssemblyAI only with audio files, not for real-time transcription. I mainly use only US English, and I have not tried other languages. I upload audio files through AssemblyAI API, and they pr...
What is your experience regarding pricing and costs for Microsoft Azure Speech Service?
The product is included and does not incur any additional costs. Pricing information is not available at the moment.
What needs improvement with Microsoft Azure Speech Service?
The product is limited when it comes to integrating with different platforms and using many other APIs. The marketplace is very limited and it's difficult to implement solutions in it. Enhancing fe...
What is your primary use case for Microsoft Azure Speech Service?
I use Microsoft Azure Speech Service ( /products/microsoft-azure-speech-service-reviews ) for communication between different countries. It facilitates communication via emails, documents, and temp...
 

Also Known As

No data available
Azure Speech Service, MS Azure Speech Service
 

Overview

 

Sample Customers

Information Not Available
KPMG
Find out what your peers are saying about Deepgram, Microsoft, Google and others in Speech-To-Text Services. Updated: May 2026.
893,221 professionals have used our research since 2012.