QuillBot vs Sudowrite:Which is more popular?
In September 2026, QuillBot had more branded searches than Sudowrite among AI writing assistants worldwide. QuillBot had about 5 million branded searches, while Sudowrite had 74,000. QuillBot made up 96.3% of all AI writing assistant searches we track, and Sudowrite accounted for 1.4%. When we asked ChatGPT and Google AI Overviews about AI writing assistants, QuillBot and Sudowrite each appeared in two of the five answers. Sudowrite was mentioned before QuillBot in two out of three answers that named either.
Who do people search for more?
QuillBot, about 68 searches for every 1 for Sudowrite
Who does AI mention more?
Both were mentioned in 2 of 5 answers.
Who does AI recommend more?
Sudowrite, named ahead of QuillBot in 2 of 3 answers
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Top AI writing assistants in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, QuillBot was mentioned in two out of five: not in any of the three ChatGPT answers, but in both Google AI Overviews. Sudowrite was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Sudowrite was listed before QuillBot in two out of three answers that named either.
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.
Grammarly5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Jasper4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers- QuillBot2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Sudowrite2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Copy.ai0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Writesonic0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Rytr0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about AI writing assistants
5 answers
Asked ChatGPT
“Which AI writing assistant should I use?”
Asked ChatGPT
“What are the best AI writing assistants?”
Asked ChatGPT
“What's the best AI writing assistant for drafting content?”
Searched Google, AI Overview
“ai writing assistant”
Searched Google, AI Overview
“ai writing tools”
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 20, 2026.
Is QuillBot or Sudowrite more popular in search?
This chart shows how often people search Google for QuillBot and Sudowrite by name. Each line represents a brand's share of searches for all seven AI writing assistants we track, month by month, from English-language searches worldwide.
Share of searches by month for QuillBot, Sudowrite. The figures are in the table below the chart.
View monthly share of searches table
| Month | QuillBot | Sudowrite | Jasper | Copy.ai | Writesonic | Rytr | Grammarly |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 95.7% | 0.77% | 1.4% | 0.96% | 0.69% | 0.42% | 0.01% |
| Nov 2025 | 96% | 0.64% | 1.4% | 0.78% | 0.69% | 0.4% | 0.01% |
| Dec 2025 | 95.2% | 0.94% | 1.4% | 0.94% | 0.84% | 0.6% | 0.01% |
| Jan 2026 | 94.2% | 1.1% | 2.1% | 1.1% | 0.83% | 0.59% | 0.01% |
| Feb 2026 | 95% | 1.1% | 1.7% | 0.94% | 0.68% | 0.5% | 0.01% |
| Mar 2026 | 95.3% | 1.2% | 1.7% | 0.77% | 0.56% | 0.43% | 0.01% |
| Apr 2026 | 94.8% | 1.4% | 1.7% | 0.94% | 0.68% | 0.43% | 0.01% |
| May 2026 | 95.7% | 1.2% | 1.4% | 0.8% | 0.56% | 0.35% | 0.01% |
| Jun 2026 | 95.4% | 1.4% | 1.4% | 0.79% | 0.57% | 0.35% | <0.01% |
| Jul 2026 | 95.1% | 1.7% | 1.4% | 0.78% | 0.58% | 0.41% | 0.01% |
| Aug 2026 | 96.1% | 1.4% | 1.2% | 0.64% | 0.4% | 0.29% | <0.01% |
| Sep 2026 | 96.3% | 1.4% | 0.96% | 0.52% | 0.5% | 0.28% | 0.01% |
How has the QuillBot and Sudowrite comparison changed over the last 12 months?
3 findings
- QuillBot was ahead of Sudowrite in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, QuillBot’s share of searches among AI writing assistants worldwide moved from 95.7% to 96.3%, and its estimated monthly branded searches moved from 9.1M to 5M.
- Across the 12 months ending September 2026, Sudowrite’s share of searches among AI writing assistants worldwide moved from 0.77% to 1.4%, and its estimated monthly branded searches held steady at 74K.
How did search popularity change for AI writing assistants worldwide in September 2026?
1 change
Estimated monthly branded searches for QuillBot worldwide fell 45.3% over 12 measured months, from 9.1M to 5M in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using QuillBot’s and Sudowrite’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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