Best AI Content Detection Software in 2026
Updated
In short: Ahrefs is ranked #1 of 45 as of 4 October 2026, ahead of GPTZero and TraceGPT. The best-ranked option with a free plan is GPTZero. The lowest first paid tier on this page is ScribeLens at $0.04/mo.
When text needs review for possible AI generation, compare where and how each tool can scan it. AI or Not heads the ranking, followed by Originality.ai and GPTZero, with Pangram and Winston AI among the next entries. Supported languages matter for the material you handle; batch scanning and file uploads affect how you submit it. Report exports can support sharing results, while API access may fit a connected workflow and a browser extension may suit in-browser checks. Free-plan availability and paid-from pricing round out the comparison. Use these details to match a tool’s access and workflow options to your review needs.
45 AI content detection software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Supported languages | |
|---|---|---|---|---|---|---|---|---|
| 1 | Ahrefs | 7.4 | RecognisedAPIDocumented | $29/mo | Yes | 29 /mo | — | View |
| 2 | GPTZero | 7.4 | RecognisedAPIDocumented | $8.33/mo | Yes | — | — | View |
| 3 | TraceGPT | 7.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 4 |  Trinka | 7.4 | RecognisedAPIDocumented | — | Yes | 20 /mo | — | View |
| 5 | Humbot | 7.3 | RecognisedAPIDocumented | $0.67/mo | Yes | 7.99 /mo | — | View |
| 6 | Reality Defender | 7.3 | RecognisedAPIDocumented | $33.25/mo | Yes | — | — | View |
| 7 | Resemble Detect | 7.3 | RecognisedAPIDocumented | $23.33/mo | Yes | 350 /mo | 54 | View |
| 8 | Undetectable AI | 7.3 | RecognisedAPIDocumented | $0.42/mo | Yes | 9.99 /mo | — | View |
| 9 | Winston AI | 7.3 | RecognisedAPIDocumented | $0.42/mo | No | 10 /mo | — | View |
| 10 | AI or Not | 7.2 | RecognisedAPIDocumented | $5/mo | Yes | 5 /mo | — | View |
| 11 | Originality.ai | 7.2 | RecognisedAPIDocumented | $12.95/mo | Yes | 12.95 /mo | — | View |
| 12 | Pangram | 7.2 | RecognisedAPIDocumented | $1.67/mo | Yes | 20 /mo | — | View |
| 13 |  Proofademic | 7.2 | RecognisedAPIDocumented | $15/mo | No | — | — | View |
| 14 | Quetext AI Detector | 7.2 | RecognisedAPIDocumented | $7.99/mo | Yes | 7.99 /mo | — | View |
| 15 | Blackboard Learn | 6.7 | RecognisedAPIDocumented | — | — | — | — | View |
| 16 | BrandWell | 6.7 | RecognisedAPIDocumented | $99/mo | No | — | — | View |
| 17 | TrustOriginality.ai | 5.8 | RecognisedAPIDocumented | €4.99/mo | Yes | — | — | View |
| 18 | AI Detector Pro | 5.6 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 19 | Detecting-AI.com | 5.6 | RecognisedAPIDocumented | $7/mo | Yes | 7 /mo | — | View |
| 20 | Isgen AI Detector | 5.6 | RecognisedAPIDocumented | $8/mo | Yes | 8 /mo | — | View |
| 21 |  ScribeLens | 5.6 | RecognisedAPIDocumented | $0.04/mo | Yes | 9 /mo | — | View |
| 22 | Corrector.app | 5.5 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 23 |  Illuminarty | 5.5 | RecognisedAPIDocumented | — | Yes | 10 /mo | — | View |
| 24 |  Polygraf AI Detector | 5.5 | RecognisedAPIDocumented | — | Yes | — | 1 | View |
| 25 | Signs of AI | 5.5 | RecognisedAPIDocumented | — | Yes | — | 2 | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which AI content detection software is ranked first on Inferse?
Ahrefs is ranked #1 of 45 with a score of 7.4. GPTZero is second and TraceGPT third.
How many of these have a free plan?
16 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, ScribeLens has the lowest first paid tier we found: $0.04/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.