

AssemblyAI is the #1 rated API for speech recognition. Thousands of developers use our APIs to transcribe millions of videos, podcasts, phone calls, and zoom meetings every day - powering innovative products like visual voicemail, meeting summarizers, and closed captioning. We're backed by leading investors including Y Combinator, John and Patrick Collison of Stripe, Daniel Gross, and Nat Friedman. We were founded in 2017. Among its major competitors, AssemblyAI is ranked in 1st place for NPS while Amazon is 2nd, and Microsoft is 3rd.
AssemblyAI's Net Promoter Score (NPS) is a 100 with 100% Promoters, 0% Passives, and 0% Detractors. Net Promoter Score tracks whether AssemblyAI's customers would recommend using the product based on a scale of -100 to 100.
| 100% | Promoters |
|---|---|
| 0% | Passives |
| 0% | Detractors |
| Summary | Date | Score |
|---|---|---|
Sep 2022 100 | Sep 2022 | 100 |
Nov 2023 100 | Nov 2023 | 100 |
AssemblyAI is ranked first for NPS among its competitors. Amazon and Microsoft come in second and third, with Rev.com coming in at #4.
Net Promoter Score (NPS) is a management tool that can be used to gauge the satisfaction of a firm's customer relationships. NPS has been widely adopted as a key metric often linked to the revenue potential of a company’s product or service. The metric is based on customer responses to the question: "On a scale of 0 to 10, how likely are you to recommend the product to a friend?"
Those who respond with a score of 9 to 10 are known as Promoters, and are widely associated with behaviors that create value, including actively encouraging others to use the product or service. Those who respond with a score of 7 or 8 are categorized as Passives, and they are believed to be less likely to exhibit the value-creation traits of Promoters having a largely neutral effect on other consumers. Detractors are those who fall in the score range of 0 to 6 and represent dissatisfied customers of the product sometimes actively recommending against using the product.
Compared to its competitors, AssemblyAI's NPS is rated right above Amazon.
| COMPANY | NPS Score | |
|---|---|---|
![]() | AssemblyAI | 100 |
![]() | Amazon | 49 |
![]() | Microsoft | 38 |
![]() | Speechmatics | N/A |
![]() | Rev.com | -34 |
AssemblyAI has an overall Product Quality score of 5 out of 5 stars rated by its users and customers.
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AssemblyAI’s product quality score is a 5 out of 5 as rated by its users and customers.
Compared to its competitors, AssemblyAI's Product Quality score is rated right above Amazon.
| COMPANY | Product Quality Score | |
|---|---|---|
![]() | AssemblyAI | 5/5 |
![]() | Amazon | 4.2/5 |
![]() | Microsoft | 4.1/5 |
![]() | Rev.com | 3.6/5 |
![]() | Speechmatics | N/A |
AssemblyAI has an overall Customer Satisfaction score of 100 rated by its users and customers.
Sign Up to see the full customer demographics data and the people that answered "How would you rate your overall satisfaction with the service you received?"
Customer Satisfaction Score (also known as CSAT), is a metric used to quantify how satisfied customers are with a company or brand’s products and services. The Customer Satisfaction Score is based on customers response to the question: “How would you rate your overall satisfaction with the service you received?” The score is calculated using the formula: (The total number answer of “Very Satisfied” and “Satisfied”) ÷ (The total response) x100, and it is generally displayed in percentages. Some of the main benefits of the CSAT for businesses are tracking retention, identifying happy customers and growing relationships, and gaining repeat business to build a sustainable brand.
Compared to its competitors, AssemblyAI's Customer Satisfaction score is rated right above Rev.com.
| COMPANY | Customer Satisfaction (CSAT) Score | |
|---|---|---|
![]() | AssemblyAI | 100% |
![]() | Rev.com | 100% |
![]() | Amazon | 84% |
![]() | Microsoft | 80% |
![]() | Speechmatics | 0% |
AssemblyAI has a 4.7/5 stars for its overall company culture rated by their employees


AssemblyAI scored a 100 for Net Promoter Score and a 76 for Employee Net Promoter Score. NPS gauges how likely a customer of AssemblyAI would recommend the brand to a friend. ENPS measures how likely AssemblyAI employees would recommend working at AssemblyAI to a friend.
| 100% | Promoters |
|---|---|
| 0% | Passive |
| 0% | Detractors |
| 83% | Promoters |
|---|---|
| 10% | Passive |
| 7% | Detractors |