--- title: "Captions vs Synthesia: Which is searched more?" description: "Is Captions or Synthesia more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the AI avatar video platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/compare/captions-app-vs-synthesia" publisher: "Brandwave" --- # Captions vs Synthesia: Which is searched more? Is Captions or Synthesia more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the AI avatar video platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Captions and Synthesia - **Competitive set**: AI avatar video platforms - **Market**: Global - **Month measured**: Sep 2026 - **Captions Share of Search**: 2.2% - **Synthesia Share of Search**: 7.5% ## Is Captions or Synthesia more popular in search? - In September 2026, Synthesia had more branded searches than Captions among AI avatar video platforms worldwide. Synthesia had about 250,000 branded searches, while Captions had 72,600. Synthesia made up 7.5% of all AI avatar video platform searches we track, and Captions accounted for 2.2%. - Synthesia was ahead of Captions in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Captions’ share of searches among AI avatar video platforms worldwide moved from 2.8% to 2.2%, and its estimated monthly branded searches moved from 105K to 72.6K. - Across the 12 months ending September 2026, Synthesia’s share of searches among AI avatar video platforms worldwide moved from 12.1% to 7.5%, and its estimated monthly branded searches moved from 457K to 250K. ## Top AI avatar video platforms in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Synthesia was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Captions was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Synthesia was listed before Captions in every answer. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Synthesia | 1st | 3 of 3 | 1 of 2 | 4 of 5 | | HeyGen | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | D-ID | 3rd | 2 of 3 | 2 of 2 | 4 of 5 | | Colossyan | 4th | 2 of 3 | 0 of 2 | 2 of 5 | | Captions | 5th | 2 of 3 | 0 of 2 | 2 of 5 | | Elai | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about AI avatar video platforms - Asked ChatGPT "Which AI avatar video platform should I use?": 1. HeyGen, 2. Synthesia, 3. Captions, 4. D-ID - Asked ChatGPT "What are the best AI avatar video platforms?": 1. HeyGen, 2. Synthesia, 3. D-ID, 4. Colossyan, 5. Captions - Asked ChatGPT "What's the best AI avatar video platform for business videos?": 1. Synthesia, 2. HeyGen, 3. Colossyan - Searched Google, AI Overview "ai presenter video": 1. Synthesia, 2. HeyGen, 3. D-ID - Searched Google, AI Overview "avatar video maker": 1. D-ID Not named in any answer: Elai. Brands are listed in the order each answer named them. The answers were collected in the United States on October 20, 2026. ## How did search popularity change for AI avatar video platforms worldwide in September 2026? - In September 2026, Captions lost share of searches among AI avatar video platforms worldwide, from 2.7% to 2.2%. - Estimated monthly branded searches for Synthesia worldwide fell 45.2% over 12 measured months, from 457K to 250K in September 2026. ## Month by month | Month | Captions estimated searches | Captions Share of Search | Captions rank | Synthesia estimated searches | Synthesia Share of Search | Synthesia rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 105K | 2.8% | 4 | 457K | 12.1% | 3 | | Nov 2025 | 103K | 2.7% | 4 | 455K | 11.8% | 3 | | Dec 2025 | 100K | 2.7% | 4 | 457K | 12.1% | 3 | | Jan 2026 | 105K | 2.5% | 4 | 455K | 10.9% | 3 | | Feb 2026 | 105K | 2.6% | 4 | 372K | 9.2% | 3 | | Mar 2026 | 105K | 2.6% | 4 | 373K | 9.2% | 3 | | Apr 2026 | 88.8K | 2.2% | 4 | 373K | 9.3% | 3 | | May 2026 | 88.8K | 2.3% | 4 | 305K | 7.8% | 3 | | Jun 2026 | 103K | 3.1% | 4 | 305K | 9.3% | 3 | | Jul 2026 | 103K | 3.1% | 4 | 305K | 9.3% | 3 | | Aug 2026 | 86.1K | 2.7% | 4 | 250K | 7.9% | 3 | | Sep 2026 | 72.6K | 2.2% | 4 | 250K | 7.5% | 3 | ## How each brand is measured Brandwave collects information about searches that people make online using Captions’ and Synthesia’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. - **Captions**: Measured on the search terms “captions ai” and “captions app”, summed into one figure. - **Synthesia**: Measured on the search terms “synthesia” and “synthesia ai video”, summed into one figure. - [Captions profile](/demand/global-en/brands/captions-app) - [Synthesia profile](/demand/global-en/brands/synthesia) - [All AI avatar video platforms worldwide](/demand/global-en/categories/ai-avatar-video-platforms): The set both shares are measured inside, 6 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Captions or Synthesia more popular in search? In September 2026, Synthesia had more branded searches than Captions among AI avatar video platforms worldwide. Synthesia had about 250,000 branded searches, while Captions had 72,600. Synthesia made up 7.5% of all AI avatar video platform searches we track, and Captions accounted for 2.2%. ## Cite this page Brandwave. "Captions vs Synthesia: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/captions-app-vs-synthesia This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/captions-app-vs-synthesia. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.