GPTZero vs Turnitin:Which is more popular by branded search?
In August 2026, Turnitin had more branded searches than GPTZero among AI content detectors worldwide. Turnitin was estimated to have 1.5M branded searches compared to GPTZero’s 1M, and held a 55.5% Share of Search versus GPTZero’s 37%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, GPTZero or Turnitin?
Compare the tools that detect AI written text. 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 Search by month for Turnitin, GPTZero. The figures are in the table below the chart.
View monthly share of search table
| Month | Turnitin | GPTZero | Copyleaks | Winston AI | Originality.ai |
|---|---|---|---|---|---|
| Oct 2025 | 56.2% | 37.5% | 6.2% | 0.07% | 0.05% |
| Nov 2025 | 61% | 33.3% | 5.5% | 0.07% | 0.05% |
| Dec 2025 | 56.8% | 38% | 5.1% | 0.07% | 0.07% |
| Jan 2026 | 56.2% | 37.5% | 6.2% | 0.09% | 0.07% |
| Feb 2026 | 55.4% | 36.9% | 7.5% | 0.11% | 0.07% |
| Mar 2026 | 51.2% | 41.8% | 6.9% | 0.08% | 0.07% |
| Apr 2026 | 55.4% | 37% | 7.4% | 0.07% | 0.06% |
| May 2026 | 60.3% | 33% | 6.6% | 0.06% | 0.05% |
| Jun 2026 | 64.2% | 28.7% | 7% | 0.05% | 0.05% |
| Jul 2026 | 59.4% | 32.6% | 8% | 0.06% | 0.06% |
| Aug 2026 | 55.5% | 37% | 7.4% | 0.06% | 0.05% |
| Sep 2026 | — | — | — | — | — |
How has the GPTZero and Turnitin comparison changed over the last 12 months?
3 findings
- Turnitin was ahead of GPTZero in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, GPTZero’s estimated Share of Search among AI content detectors worldwide moved from 37.5% to 37%, and its estimated monthly branded searches moved from 1.8M to 1M.
- Across the 11 months ending August 2026, Turnitin’s estimated Share of Search among AI content detectors worldwide moved from 56.2% to 55.5%, and its estimated monthly branded searches moved from 2.7M to 1.5M.
How did search popularity change for AI content detectors worldwide in August 2026?
2 changes
In August 2026, GPTZero gained estimated Share of Search among AI content detectors worldwide, from 32.6% to 37%.
In August 2026, Turnitin lost estimated Share of Search among AI content detectors worldwide, from 59.4% to 55.5%.
How each brand is measured
Brandwave collects information about searches that people make online using GPTZero’s and Turnitin’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.
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.