--- title: "AI content detectors: Which are searched most?" description: "Compare the tools that detect AI written text. Share of Search among Turnitin, GPTZero, Copyleaks, Originality.ai and Winston AI, the AI content detectors Brandwave compares worldwide, using the same methodology, market, and reporting period. 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/categories/ai-content-detectors" publisher: "Brandwave" --- # AI content detectors: Which are searched most? Compare the tools that detect AI written text. Share of Search among Turnitin, GPTZero, Copyleaks, Originality.ai and Winston AI, the AI content detectors Brandwave compares worldwide, using the same methodology, market, and reporting period. 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 - **Competitive set**: AI content detectors - **Market**: Global - **Brands compared**: 5 - **Month measured**: Aug 2026 - **Highest Share of Search**: Turnitin, 52.2% ## Which brand is most popular in search among AI content detectors worldwide? - In August 2026, Turnitin was the most searched among AI content detectors worldwide, with an estimated 1.5M branded searches and 52.2% estimated Share of Search within this set. - GPTZero is in 2nd place, 17.4 percentage points behind at 34.8% Share of Search. - Across the 11 months ending August 2026, Copyleaks’ estimated Share of Search among AI content detectors worldwide increased from 5.7% to 7%. - Across the 11 months ending August 2026, Winston AI’s estimated Share of Search among AI content detectors worldwide decreased from 3.2% to 2.2%. - Across the 11 months ending August 2026, Turnitin’s estimated Share of Search among AI content detectors worldwide peaked at 60.1% in June 2026 and was lowest at 46.2% in March 2026. - Across the 11 months ending August 2026, GPTZero’s estimated Share of Search among AI content detectors worldwide peaked at 37.8% in March 2026 and was lowest at 26.8% in June 2026. - Across the 11 months ending August 2026, Copyleaks’ estimated Share of Search among AI content detectors worldwide peaked at 7.4% in July 2026 and was lowest at 4.6% in December 2025. - Across the 11 months ending August 2026, Originality.ai’s estimated Share of Search among AI content detectors worldwide peaked at 6.3% in March 2026 and was lowest at 3.9% in August 2026. - Across the 11 months ending August 2026, Winston AI’s estimated Share of Search among AI content detectors worldwide peaked at 4.6% in February 2026 and was lowest at 2% in June 2026. - Across the 11 months ending August 2026, Turnitin, GPTZero and Originality.ai held steady: their estimated Share of Search among AI content detectors worldwide each moved less than 0.5 percentage points. ## Compare search popularity between leading brands - [Turnitin vs GPTZero: compare search popularity](/demand/global-en/compare/gptzero-vs-turnitin): 52.2% against 34.8% Share of Search. - [Turnitin vs Copyleaks: compare search popularity](/demand/global-en/compare/copyleaks-vs-turnitin): 52.2% against 7% Share of Search. - [Turnitin vs Originality.ai: compare search popularity](/demand/global-en/compare/originality-ai-vs-turnitin): 52.2% against 3.9% Share of Search. - [Turnitin vs Winston AI: compare search popularity](/demand/global-en/compare/turnitin-vs-winston-ai): 52.2% against 2.2% Share of Search. - [GPTZero vs Copyleaks: compare search popularity](/demand/global-en/compare/copyleaks-vs-gptzero): 34.8% against 7% Share of Search. - [GPTZero vs Originality.ai: compare search popularity](/demand/global-en/compare/gptzero-vs-originality-ai): 34.8% against 3.9% Share of Search. - [GPTZero vs Winston AI: compare search popularity](/demand/global-en/compare/gptzero-vs-winston-ai): 34.8% against 2.2% Share of Search. - [Copyleaks vs Originality.ai: compare search popularity](/demand/global-en/compare/copyleaks-vs-originality-ai): 7% against 3.9% Share of Search. - [Copyleaks vs Winston AI: compare search popularity](/demand/global-en/compare/copyleaks-vs-winston-ai): 7% against 2.2% Share of Search. - [Originality.ai vs Winston AI: compare search popularity](/demand/global-en/compare/originality-ai-vs-winston-ai): 3.9% against 2.2% Share of Search. ## How did search popularity change for AI content detectors worldwide in August 2026? - In August 2026, GPTZero gained estimated Share of Search among AI content detectors worldwide, from 30.2% to 34.8%. - In August 2026, Turnitin lost estimated Share of Search among AI content detectors worldwide, from 55.1% to 52.2%. - In August 2026, Originality.ai lost estimated Share of Search among AI content detectors worldwide, from 5% to 3.9%. - Estimated monthly branded searches for Winston AI worldwide fell 63.2% over 11 measured months, from 169K to 62.1K in August 2026. - Estimated monthly branded searches for Copyleaks worldwide fell 33.2% over 11 measured months, from 301K to 201K in August 2026. ## Share of Search ranking | Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by | | --- | --- | --- | --- | --- | --- | | 1 | Turnitin | 52.2% | 1.5M | 0.0% | Turnitin | | 2 | GPTZero | 34.8% | 1M | +21.5% | GPTZero | | 3 | Copyleaks | 7% | 201K | 0.0% | Copyleaks | | 4 | Originality.ai | 3.9% | 111K | -18.5% | Originality.ai | | 5 | Winston AI | 2.2% | 62.1K | 0.0% | Winston AI | ## Historical estimated branded-search demand | Month | Brand | Estimated monthly branded searches | Share of Search | Rank | | --- | --- | --- | --- | --- | | Oct 2025 | Turnitin | 2.7M | 52.3% | 1 | | Oct 2025 | GPTZero | 1.8M | 34.9% | 2 | | Oct 2025 | Copyleaks | 301K | 5.7% | 3 | | Oct 2025 | Originality.ai | 203K | 3.9% | 4 | | Oct 2025 | Winston AI | 169K | 3.2% | 5 | | Nov 2025 | Turnitin | 3.4M | 56.8% | 1 | | Nov 2025 | GPTZero | 1.8M | 31% | 2 | | Nov 2025 | Copyleaks | 301K | 5.1% | 3 | | Nov 2025 | Originality.ai | 249K | 4.2% | 4 | | Nov 2025 | Winston AI | 169K | 2.9% | 5 | | Dec 2025 | Turnitin | 2.2M | 51.8% | 1 | | Dec 2025 | GPTZero | 1.5M | 34.7% | 2 | | Dec 2025 | Originality.ai | 249K | 5.8% | 3 | | Dec 2025 | Copyleaks | 201K | 4.6% | 4 | | Dec 2025 | Winston AI | 138K | 3.2% | 5 | | Jan 2026 | Turnitin | 1.8M | 50.9% | 1 | | Jan 2026 | GPTZero | 1.2M | 34% | 2 | | Jan 2026 | Originality.ai | 203K | 5.7% | 3 | | Jan 2026 | Copyleaks | 201K | 5.6% | 4 | | Jan 2026 | Winston AI | 138K | 3.8% | 5 | | Feb 2026 | Turnitin | 1.8M | 49.9% | 1 | | Feb 2026 | GPTZero | 1.2M | 33.3% | 2 | | Feb 2026 | Copyleaks | 246K | 6.7% | 3 | | Feb 2026 | Originality.ai | 203K | 5.5% | 4 | | Feb 2026 | Winston AI | 169K | 4.6% | 5 | | Mar 2026 | Turnitin | 2.2M | 46.2% | 1 | | Mar 2026 | GPTZero | 1.8M | 37.8% | 2 | | Mar 2026 | Originality.ai | 304K | 6.3% | 3 | | Mar 2026 | Copyleaks | 301K | 6.2% | 4 | | Mar 2026 | Winston AI | 169K | 3.5% | 5 | | Apr 2026 | Turnitin | 2.7M | 50.6% | 1 | | Apr 2026 | GPTZero | 1.8M | 33.8% | 2 | | Apr 2026 | Copyleaks | 368K | 6.8% | 3 | | Apr 2026 | Originality.ai | 304K | 5.6% | 4 | | Apr 2026 | Winston AI | 169K | 3.1% | 5 | | May 2026 | Turnitin | 2.7M | 55.6% | 1 | | May 2026 | GPTZero | 1.5M | 30.4% | 2 | | May 2026 | Copyleaks | 301K | 6.1% | 3 | | May 2026 | Originality.ai | 248K | 5% | 4 | | May 2026 | Winston AI | 138K | 2.8% | 5 | | Jun 2026 | Turnitin | 2.2M | 60.1% | 1 | | Jun 2026 | GPTZero | 1M | 26.8% | 2 | | Jun 2026 | Copyleaks | 246K | 6.6% | 3 | | Jun 2026 | Originality.ai | 167K | 4.5% | 4 | | Jun 2026 | Winston AI | 75.9K | 2% | 5 | | Jul 2026 | Turnitin | 1.5M | 55.1% | 1 | | Jul 2026 | GPTZero | 823K | 30.2% | 2 | | Jul 2026 | Copyleaks | 201K | 7.4% | 3 | | Jul 2026 | Originality.ai | 137K | 5% | 4 | | Jul 2026 | Winston AI | 62.1K | 2.3% | 5 | | Aug 2026 | Turnitin | 1.5M | 52.2% | 1 | | Aug 2026 | GPTZero | 1M | 34.8% | 2 | | Aug 2026 | Copyleaks | 201K | 7% | 3 | | Aug 2026 | Originality.ai | 111K | 3.9% | 4 | | Aug 2026 | Winston AI | 62.1K | 2.2% | 5 | | Sep 2026 | Copyleaks | — | — | — | | Sep 2026 | GPTZero | — | — | — | | Sep 2026 | Originality.ai | — | — | — | | Sep 2026 | Turnitin | — | — | — | | Sep 2026 | Winston AI | — | — | — | ## What is being compared - **Copyleaks**: Measured on the search term “copyleaks”. - **GPTZero**: Measured on the search term “gptzero”. - **Originality.ai**: Measured on the search terms “originality ai” and “originalityai”, summed into one figure. - **Turnitin**: Measured on the search term “turnitin”. - **Winston AI**: Measured on the search terms “winston ai” and “winstonai”, summed into one figure. - [Copyleaks](/demand/global-en/brands/copyleaks) - [GPTZero](/demand/global-en/brands/gptzero) - [Originality.ai](/demand/global-en/brands/originality-ai) - [Turnitin](/demand/global-en/brands/turnitin) - [Winston AI](/demand/global-en/brands/winston-ai) ## Methodology - [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Which brand is most popular in search among AI content detectors worldwide? In August 2026, Turnitin was the most searched among AI content detectors worldwide, with an estimated 1.5M branded searches and 52.2% estimated Share of Search within this set. These are worldwide searches for English-language branded terms. ## Cite this page Brandwave. "AI content detectors: Which are searched most?". https://gobrandwave.com/demand/global-en/categories/ai-content-detectors This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/ai-content-detectors. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.