Deepgram vs Rev AI:Which is more popular?
In September 2026, Deepgram had more branded searches than Rev AI among speech to text APIs worldwide. Deepgram had about 74,000 branded searches, while Rev AI had 9,000. Deepgram made up 62.5% of all speech to text API searches we track, and Rev AI accounted for 7.6%. When we asked ChatGPT and Google AI Overviews about speech to text APIs, Deepgram appeared in three of the five answers and Rev AI in none.
Who do people search for more?
Deepgram, about 8 searches for every 1 for Rev AI
Who does AI mention more?
Deepgram, mentioned in 3 of 5 answers, Rev AI in 0
Who does AI recommend more?
Deepgram, the only one of the two named
Follow Deepgram vs Rev AI and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
Top speech to text APIs in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Deepgram was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Rev AI did not appear in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
AssemblyAI4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers- Google Cloud Speech-to-Text4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Deepgram3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- OpenAI speech-to-text API3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Amazon Transcribe1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Speechmatics0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Rev AI0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about speech to text APIs
5 answers
Asked ChatGPT
“Which speech to text API should I use?”
Asked ChatGPT
“What are the best speech to text APIs?”
Asked ChatGPT
“What's the best speech to text API for an app workflow?”
Searched Google, AI Overview
“speech to text api”
Searched Google, AI Overview
“speech recognition api”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is Deepgram or Rev AI more popular in search?
This chart shows how often people search Google for Deepgram and Rev AI by name. Each line represents a brand's share of searches for all seven speech to text APIs we track, month by month, from English-language searches worldwide.
Share of searches by month for Deepgram, Rev AI. The figures are in the table below the chart.
View monthly share of searches table
| Month | Deepgram | AssemblyAI | Speechmatics | Rev AI | Google Cloud Speech-to-Text | Amazon Transcribe | OpenAI speech-to-text API |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 49.5% | 14.8% | 12.1% | 9% | 9.9% | 4.4% | 0.17% |
| Nov 2025 | 46.6% | 17.1% | 11.4% | 11.3% | 9.3% | 4.1% | 0.13% |
| Dec 2025 | 56.7% | 13.9% | 9.3% | 8.3% | 7.6% | 4.1% | 0.13% |
| Jan 2026 | 54.3% | 16.3% | 8.9% | 9.9% | 7.3% | 3.2% | 0.13% |
| Feb 2026 | 53.5% | 16% | 8.7% | 7.8% | 10.7% | 3.2% | 0.15% |
| Mar 2026 | 56.2% | 16.8% | 7.5% | 7.4% | 9.2% | 2.7% | 0.13% |
| Apr 2026 | 55.3% | 16.6% | 7.4% | 7.3% | 11.1% | 2.2% | 0.13% |
| May 2026 | 58.1% | 17.4% | 7.8% | 6.3% | 7.8% | 2.3% | 0.31% |
| Jun 2026 | 60.7% | 14.9% | 8.1% | 6.6% | 6.6% | 2.4% | 0.72% |
| Jul 2026 | 59.7% | 14.6% | 8% | 6.5% | 8% | 1.9% | 1.3% |
| Aug 2026 | 60.3% | 14.7% | 8.1% | 6.8% | 8.1% | 2% | 0.17% |
| Sep 2026 | 62.5% | 15.3% | 8.4% | 7.6% | 3.7% | 2.4% | 0.12% |
How has the Deepgram and Rev AI comparison changed over the last 12 months?
3 findings
- Deepgram was ahead of Rev AI in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Deepgram’s share of searches among speech to text APIs worldwide moved from 49.5% to 62.5%, and its estimated monthly branded searches moved from 60.5K to 74K.
- Across the 12 months ending September 2026, Rev AI’s share of searches among speech to text APIs worldwide moved from 9% to 7.6%, and its estimated monthly branded searches moved from 11K to 9K.
How did search popularity change for speech to text APIs worldwide in September 2026?
2 changes
In September 2026, Rev AI overtook Google Cloud Speech-to-Text to rank 4th among speech to text APIs worldwide, with 7.6% of the searches.
In September 2026, Deepgram gained share of searches among speech to text APIs worldwide, from 60.3% to 62.5%.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Deepgram’s and Rev AI’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Other head-to-heads among speech to text APIs
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.