Otter vs QuillBot:Which is searched more?
In September 2026, QuillBot had more branded searches than Otter among AI summarisation tools worldwide. QuillBot had about 5 million branded searches, while Otter had 382,000. QuillBot made up 16.7% of all AI summarisation tool searches we track, and Otter accounted for 1.3%. These are worldwide searches for English-language branded terms.
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Is Otter or QuillBot more popular in search?
Compare the tools that summarise long documents and articles. 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.
Share of searches by month for QuillBot, Otter. The figures are in the table below the chart.
View monthly share of searches table
| Month | NotebookLM | QuillBot | Otter | Scholarcy | TLDR This |
|---|---|---|---|---|---|
| Oct 2025 | 54.9% | 42.2% | 2.6% | 0.19% | 0.02% |
| Nov 2025 | 58.9% | 38.9% | 2% | 0.14% | 0.02% |
| Dec 2025 | 71.4% | 26.8% | 1.7% | 0.12% | 0.02% |
| Jan 2026 | 75.1% | 23% | 1.8% | 0.1% | 0.01% |
| Feb 2026 | 75.1% | 23% | 1.8% | 0.1% | 0.01% |
| Mar 2026 | 75.2% | 23% | 1.8% | 0.1% | 0.01% |
| Apr 2026 | 81.6% | 16.7% | 1.6% | 0.07% | 0.01% |
| May 2026 | 81.9% | 16.8% | 1.3% | 0.06% | <0.01% |
| Jun 2026 | 81.9% | 16.7% | 1.3% | 0.05% | <0.01% |
| Jul 2026 | 81.2% | 17.2% | 1.6% | 0.04% | <0.01% |
| Aug 2026 | 78.7% | 19.7% | 1.5% | 0.04% | <0.01% |
| Sep 2026 | 81.9% | 16.7% | 1.3% | 0.05% | <0.01% |
How has the Otter and QuillBot comparison changed over the last 12 months?
3 findings
- QuillBot was ahead of Otter in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Otter’s share of searches among AI summarisation tools worldwide moved from 2.6% to 1.3%, and its estimated monthly branded searches moved from 569K to 382K.
- Across the 12 months ending September 2026, QuillBot’s share of searches among AI summarisation tools worldwide moved from 42.2% to 16.7%, and its estimated monthly branded searches moved from 9.1M to 5M.
How did search popularity change for AI summarisation tools worldwide in September 2026?
2 changes
In September 2026, QuillBot lost share of searches among AI summarisation tools worldwide, from 19.7% to 16.7%.
Estimated monthly branded searches for Otter worldwide fell 32.8% over 12 measured months, from 569K to 382K in September 2026.
How are branded searches counted?
11 search terms
Brandwave collects information about searches that people make online using Otter’s and QuillBot’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.
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