Best AI Content Detection Software in 2026
Updated
In short: GPTZero is ranked #1 of 45 as of 7 October 2026, ahead of Polygraf AI Detector and Trinka. The best-ranked option with a free plan is Polygraf AI Detector. The lowest first paid tier on this page is ScribeLens at $0.04/mo.
When checking text whose origin matters, the available scanning and reporting options can shape how software fits into a writing or review process. Compare supported languages, batch scanning, and file uploads, then consider report exports if results need to be shared. API access and a browser extension may suit different ways of working. GPTZero, Polygraf AI Detector, and Trinka are among the entries; free-plan availability and paid-from pricing are also listed. Weigh these details against where you need to check text and how you plan to review the results.
45 AI content detection software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
45ranked
20free plans on this page
$0.04/molowest paid tier
7 Oct 2026last checked
Input list AI Content Detection Software 25 channels on this page · 102 of 200 spec lines stated by the makers
Ch Tool Free planPaid fromSupported languagesFile uploadsAPI accessBrowser extensionReport exportsBatch scanning Spec sheet Score
01 GPTZero Free planYesPaid fromnot statedSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningYes 4/8spec lines stated 7.4
02 Polygraf AI Detector Free planYesPaid fromnot statedSupported languages1File uploadsYesAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningnot stated 5/8spec lines stated 7.3
03 Trinka Free planYesPaid from$20/moSupported languagesnot statedFile uploadsnot statedAPI accessnot statedBrowser extensionYesReport exportsnot statedBatch scanningnot stated 3/8spec lines stated 7.3
04 Winston AI Free planNoPaid from$10/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningYes 5/8spec lines stated 7.2
05 Ahrefs Free planYesPaid from$29/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionnot statedReport exportsnot statedBatch scanningnot stated 3/8spec lines stated 7.1
06 AI Detector Pro Free planYesPaid fromnot statedSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionnot statedReport exportsnot statedBatch scanningnot stated 2/8spec lines stated 7.1
07 Pangram Free planYesPaid from$20/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningYes 5/8spec lines stated 7.1
08 Proofademic Free planNoPaid fromnot statedSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionNoReport exportsnot statedBatch scanningYes 4/8spec lines stated 7.1
09 AI or Not Free planYesPaid from$5/moSupported languagesnot statedFile uploadsYesAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningYes 6/8spec lines stated 7.0
10 TraceGPT Free planYesPaid fromnot statedSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningnot stated 3/8spec lines stated 7.0
11 Copyleaks AI Detector Free plannot statedPaid fromnot statedSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningYes 3/8spec lines stated 6.9
12 Hive AI-Generated Content Detection Free planNoPaid fromnot statedSupported languagesnot statedFile uploadsYesAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningYes 5/8spec lines stated 6.9
13 Humbot Free planYesPaid from$7.99/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionnot statedReport exportsnot statedBatch scanningnot stated 3/8spec lines stated 6.9
14 Reality Defender Free planYesPaid fromnot statedSupported languagesnot statedFile uploadsYesAPI accessYesBrowser extensionYesReport exportsdetailedBatch scanningYes 6/8spec lines stated 6.9
15 Undetectable AI Free planYesPaid from$9.99/moSupported languagesnot statedFile uploadsYesAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningYes 6/8spec lines stated 6.9
16 Detecting-AI.com Free planYesPaid from$7/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionnot statedReport exportsnot statedBatch scanningnot stated 3/8spec lines stated 6.8
17 Illuminarty Free planYesPaid from$10/moSupported languagesnot statedFile uploadsYesAPI accessYesBrowser extensionNoReport exportsnot statedBatch scanningnot stated 5/8spec lines stated 6.8
18 Isgen AI Detector Free planYesPaid from$8/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionnot statedReport exportsnot statedBatch scanningYes 4/8spec lines stated 6.8
19 Originality.ai Free planYesPaid from$12.95/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningYes 5/8spec lines stated 6.8
20 Quetext AI Detector Free planYesPaid from$7.99/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionnot statedReport exportsnot statedBatch scanningnot stated 3/8spec lines stated 6.8
21 Resemble Detect Free planYesPaid from$350/moSupported languages54File uploadsYesAPI accessYesBrowser extensionYesReport exportsdetailedBatch scanningYes 8/8spec lines stated 6.8
22 ScribeLens Free planYesPaid from$9/moSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionnot statedReport exportsnot statedBatch scanningnot stated 3/8spec lines stated 6.8
23 TrustOriginality.ai Free planYesPaid fromnot statedSupported languagesnot statedFile uploadsnot statedAPI accessYesBrowser extensionYesReport exportsnot statedBatch scanningnot stated 3/8spec lines stated 6.8
24 BrandWell Free planNoPaid fromnot statedSupported languagesnot statedFile uploadsnot statedAPI accessnot statedBrowser extensionnot statedReport exportsnot statedBatch scanningnot stated 1/8spec lines stated 6.7
25 ZeroGPT Free planYesPaid fromnot statedSupported languagesnot statedFile uploadsYesAPI accessYesBrowser extensionnot statedReport exportsnot statedBatch scanningYes 4/8spec lines stated 6.7
Compare all 25 in a table
| # | Tool | Score | Free plan | From | Free plan | Paid from | Supported languages | File uploads |
|---|---|---|---|---|---|---|---|---|
| 1 | GPTZero | 7.4 | Free plan | $8.33/mo | Yes | — | — | — |
| 2 | Polygraf AI Detector | 7.3 | Free plan | $9.95/mo | Yes | — | 1 | Yes |
| 3 | Trinka | 7.3 | Free plan | — | Yes | 20 /mo | — | — |
| 4 | Winston AI | 7.2 | Free plan | $5/mo | No | 10 /mo | — | — |
| 5 | Ahrefs | 7.1 | Free plan | $29/mo | Yes | 29 /mo | — | — |
| 6 | AI Detector Pro | 7.1 | Free plan | Free | Yes | — | — | — |
| 7 | Pangram | 7.1 | Free plan | $1.67/mo | Yes | 20 /mo | — | — |
| 8 | Proofademic | 7.1 | Free plan | $15/mo | No | — | — | — |
| 9 | AI or Not | 7.0 | Free plan | $5/mo | Yes | 5 /mo | — | Yes |
| 10 | TraceGPT | 7.0 | No | — | Yes | — | — | — |
| 11 | Copyleaks AI Detector | 6.9 | No | $1.17/mo | — | — | — | — |
| 12 | Hive AI-Generated Content Detection | 6.9 | Free plan | $6/mo | No | — | — | Yes |
| 13 | Humbot | 6.9 | No | $0.67/mo | Yes | 7.99 /mo | — | — |
| 14 | Reality Defender | 6.9 | Free plan | $33.25/mo | Yes | — | — | Yes |
| 15 | Undetectable AI | 6.9 | No | $0.42/mo | Yes | 9.99 /mo | — | Yes |
| 16 | Detecting-AI.com | 6.8 | Free plan | $0.58/mo | Yes | 7 /mo | — | — |
| 17 | Illuminarty | 6.8 | Free plan | $10/mo | Yes | 10 /mo | — | Yes |
| 18 | Isgen AI Detector | 6.8 | Free plan | $8/mo | Yes | 8 /mo | — | — |
| 19 | Originality.ai | 6.8 | Free plan | $12.95/mo | Yes | 12.95 /mo | — | — |
| 20 | Quetext AI Detector | 6.8 | Free plan | $7.99/mo | Yes | 7.99 /mo | — | — |
| 21 | Resemble Detect | 6.8 | Free plan | $280/mo | Yes | 350 /mo | 54 | Yes |
| 22 | ScribeLens | 6.8 | Free plan | $0.04/mo | Yes | 9 /mo | — | — |
| 23 | TrustOriginality.ai | 6.8 | Free plan | €4.99/mo | Yes | — | — | — |
| 24 | BrandWell | 6.7 | No | $99/mo | No | — | — | — |
| 25 | ZeroGPT | 6.7 | Free plan | Free | Yes | — | — | Yes |
Is your tool on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which AI content detection software is ranked first on Specifiction?
GPTZero is ranked #1 of 45 with a score of 7.4. Polygraf AI Detector is second and Trinka third.
How many of these have a free plan?
20 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, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.