AssemblyAI vs Google Cloud Speech-to-Text:Which is more popular?
In September 2026, AssemblyAI had more branded searches than Google Cloud Speech-to-Text among speech to text APIs worldwide. AssemblyAI had about 18,100 branded searches, while Google Cloud Speech-to-Text had 4,400. AssemblyAI made up 15.3% of all speech to text API searches we track, and Google Cloud Speech-to-Text accounted for 3.7%. When we asked ChatGPT and Google AI Overviews about speech to text APIs, AssemblyAI and Google Cloud Speech-to-Text each appeared in four of the five answers. AssemblyAI was mentioned before Google Cloud Speech-to-Text in three out of four answers.
Who do people search for more?
AssemblyAI, about 4 searches for every 1 for Google Cloud Speech-to-Text
Who does AI mention more?
Both were mentioned in 4 of 5 answers.
Who does AI recommend more?
AssemblyAI, named ahead of Google Cloud Speech-to-Text in 3 of 4 answers
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Top speech to text APIs in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, AssemblyAI and Google Cloud Speech-to-Text were each mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. AssemblyAI was listed before Google Cloud Speech-to-Text in three out of four 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 AssemblyAI or Google Cloud Speech-to-Text more popular in search?
This chart shows how often people search Google for AssemblyAI and Google Cloud Speech-to-Text 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 AssemblyAI, Google Cloud Speech-to-Text. 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 AssemblyAI and Google Cloud Speech-to-Text comparison changed over the last 12 months?
3 findings
- AssemblyAI was ahead of Google Cloud Speech-to-Text in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, AssemblyAI’s share of searches among speech to text APIs worldwide moved from 14.8% to 15.3%, and its estimated monthly branded searches held steady at 18.1K.
- Across the 12 months ending September 2026, Google Cloud Speech-to-Text’s share of searches among speech to text APIs worldwide moved from 9.9% to 3.7%, and its estimated monthly branded searches moved from 12.1K to 4.4K.
How did search popularity change for speech to text APIs worldwide in September 2026?
3 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, AssemblyAI gained share of searches among speech to text APIs worldwide, from 14.7% to 15.3%.
In September 2026, Google Cloud Speech-to-Text lost share of searches among speech to text APIs worldwide, from 8.1% to 3.7%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using AssemblyAI’s and Google Cloud Speech-to-Text’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.
AssemblyAI
1 branded search term
- assemblyai
Google Cloud Speech-to-Text
1 branded search term
- google cloud speech to text
Other head-to-heads among speech to text APIs
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