Best AI Content Detectors in 2026
Updated
In short: Originality.ai is ranked #1 of 24 as of 3 October 2026, ahead of GPTZero and Pangram. The best-ranked option with a free plan is GPTZero. The lowest first paid tier on this page is Winston AI at $0.42/mo.
24 AI content detectors 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 | Detection languages | |
|---|---|---|---|---|---|---|---|---|
| 1 | Originality.ai | 8.9 | RecognisedAPIDocumented | $12.95/mo | Yes | 12.95 /mo | 30 languages | View |
| 2 | GPTZero | 8.9 | RecognisedAPIDocumented | $8.33/mo | Yes | — | 5 languages | View |
| 3 | Pangram | 8.6 | RecognisedAPIDocumented | $1.67/mo | Yes | 20 /mo | 24 languages | View |
| 4 | Winston AI | 8.6 | RecognisedAPIDocumented | $0.42/mo | No | 10 /mo | 16 languages | View |
| 5 | AI Detectors.io | 8.5 | RecognisedAPIDocumented | $0.69/mo | Yes | 8.33 /mo | — | View |
| 6 | It's AI | 8.4 | RecognisedAPIDocumented | $0.42/mo | Yes | 7 /mo | — | View |
| 7 | Copyleaks AI Detector | 6.6 | RecognisedAPIDocumented | — | — | — | 30 languages | View |
| 8 | TrustOriginality.ai | 6.3 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 9 | Detecting-AI.com | 6.2 | RecognisedAPIDocumented | — | Yes | 7 /mo | — | View |
| 10 | Detecto | 6.1 | RecognisedAPIDocumented | — | Yes | 6.99 /mo | — | View |
| 11 | Smodin AI Detector | 6.0 | RecognisedAPIDocumented | — | — | 10 /mo | — | View |
| 12 | Airno | 5.9 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 13 | ContentDetector.org | 5.9 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 14 | Isgen AI Detector | 5.8 | RecognisedAPIDocumented | — | Yes | 8 /mo | — | View |
| 15 |  Proofademic | 5.7 | RecognisedAPIDocumented | $15/mo | No | — | 23 languages | View |
| 16 | TheChecker.AI | 5.6 | RecognisedAPIDocumented | — | No | 9.9 /mo | 1 languages | View |
| 17 | AI Detector Pro | 5.5 | RecognisedAPIDocumented | — | Yes | — | 5 languages | View |
| 18 | GPTKit | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 19 | AI-Content Detector ML | 5.2 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 20 | Mask AI Detector | 5.1 | RecognisedAPIDocumented | — | No | 10.99 /mo | — | View |
| 21 |  Learnaway | 5.0 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 22 | Content Checker by AI Aware | 4.7 | RecognisedAPIDocumented | — | No | — | — | View |
| 23 | ClassGuard | 4.6 | RecognisedAPIDocumented | — | No | — | — | View |
| 24 |  Elucida | 4.5 | RecognisedAPIDocumented | — | No | — | — | 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 detector is ranked first on Inferse?
Originality.ai is ranked #1 of 24 with a score of 8.9. GPTZero is second and Pangram third.
How many of these have a free plan?
7 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Winston AI has the lowest first paid tier we found: $0.42/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.