--- title: "Retell AI vs Voiceflow: Which is searched more?" description: "Is Retell AI or Voiceflow more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the AI voice agents 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/retell-ai-vs-voiceflow" publisher: "Brandwave" --- # Retell AI vs Voiceflow: Which is searched more? Is Retell AI or Voiceflow more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the AI voice agents 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**: Retell AI and Voiceflow - **Competitive set**: AI voice agents - **Market**: Global - **Month measured**: Sep 2026 - **Retell AI Share of Search**: 51.9% - **Voiceflow Share of Search**: 15.5% ## Is Retell AI or Voiceflow more popular in search? - In September 2026, Retell AI had more branded searches than Voiceflow among AI voice agents worldwide. Retell AI had about 60,500 branded searches, while Voiceflow had 18,100. Retell AI made up 51.9% of all AI voice agent searches we track, and Voiceflow accounted for 15.5%. - Retell AI was ahead of Voiceflow in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Retell AI’s share of searches among AI voice agents worldwide moved from 39.5% to 51.9%, and its estimated monthly branded searches held steady at 60.5K. - Across the 12 months ending September 2026, Voiceflow’s share of searches among AI voice agents worldwide moved from 26.4% to 15.5%, and its estimated monthly branded searches moved from 40.5K to 18.1K. ## Top AI voice agents in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Retell AI appeared in all five answers. Voiceflow was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Retell AI was listed before Voiceflow 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 | | --- | --- | --- | --- | --- | | Retell AI | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | Vapi | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | Synthflow | 3rd | 2 of 3 | 2 of 2 | 4 of 5 | | Bland AI | 4th | 3 of 3 | 2 of 2 | 5 of 5 | | Voiceflow | 5th | 1 of 3 | 1 of 2 | 2 of 5 | ## Every AI answer about AI voice agents - Asked ChatGPT "Which AI voice agent platform should I use?": 1. Retell AI, 2. Vapi, 3. Bland AI - Asked ChatGPT "What are the best AI voice agent platforms?": 1. Vapi, 2. Retell AI, 3. Synthflow, 4. Bland AI, 5. Voiceflow - Asked ChatGPT "What's the best AI voice agent platform for customer calls?": 1. Retell AI, 2. Vapi, 3. Synthflow, 4. Bland AI - Searched Google, AI Overview "ai voice agent platforms": 1. Vapi, 2. Retell AI, 3. Bland AI, 4. Synthflow, 5. Voiceflow - Searched Google, AI Overview "ai phone agent": 1. Retell AI, 2. Synthflow, 3. Bland AI 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 voice agents worldwide in September 2026? - In September 2026, Retell AI lost share of searches among AI voice agents worldwide, from 54.3% to 51.9%. - In September 2026, Voiceflow lost share of searches among AI voice agents worldwide, from 16.3% to 15.5%. ## Month by month | Month | Retell AI estimated searches | Retell AI Share of Search | Retell AI rank | Voiceflow estimated searches | Voiceflow Share of Search | Voiceflow rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 60.5K | 39.5% | 1 | 40.5K | 26.4% | 2 | | Nov 2025 | 60.5K | 40.1% | 1 | 40.5K | 26.9% | 2 | | Dec 2025 | 60.5K | 45% | 1 | 33.1K | 24.6% | 2 | | Jan 2026 | 74K | 46.3% | 1 | 33.1K | 20.7% | 2 | | Feb 2026 | 74K | 45.9% | 1 | 33.1K | 20.5% | 2 | | Mar 2026 | 74K | 43.8% | 1 | 33.1K | 19.6% | 3 | | Apr 2026 | 74K | 45.2% | 1 | 33.1K | 20.2% | 3 | | May 2026 | 74K | 44.8% | 1 | 27.1K | 16.4% | 3 | | Jun 2026 | 60.5K | 44.3% | 1 | 27.1K | 19.8% | 3 | | Jul 2026 | 60.5K | 45.9% | 1 | 22.2K | 16.8% | 3 | | Aug 2026 | 74K | 54.3% | 1 | 22.2K | 16.3% | 3 | | Sep 2026 | 60.5K | 51.9% | 1 | 18.1K | 15.5% | 3 | ## How each brand is measured Brandwave collects information about searches that people make online using Retell AI’s and Voiceflow’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. - **Retell AI**: Measured on the search term “retellai”. - **Voiceflow**: Measured on the search term “voiceflow”. - [Retell AI profile](/demand/global-en/brands/retell-ai) - [Voiceflow profile](/demand/global-en/brands/voiceflow) - [All AI voice agents worldwide](/demand/global-en/categories/ai-voice-agents): The set both shares are measured inside, 5 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 Retell AI or Voiceflow more popular in search? In September 2026, Retell AI had more branded searches than Voiceflow among AI voice agents worldwide. Retell AI had about 60,500 branded searches, while Voiceflow had 18,100. Retell AI made up 51.9% of all AI voice agent searches we track, and Voiceflow accounted for 15.5%. ## Cite this page Brandwave. "Retell AI vs Voiceflow: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/retell-ai-vs-voiceflow This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/retell-ai-vs-voiceflow. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.