Best AI Content Detection Software in 2026
Updated
In short: GPTZero is ranked #1 of 45 as of 4 October 2026, ahead of Polygraf AI Detector and Pangram. 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 text needs review, AI content detection tools differ in how you can submit material and work with results. The ranked entries begin with GPTZero, Pangram, and Winston AI. Compare supported languages, file uploads, and batch scanning to assess the kinds of checks available. Report exports may matter when findings need to be shared, while API access and a browser extension offer different ways to connect detection with a workflow. Check free-plan availability and “Paid from” details alongside those capabilities. AI or Not, Originality.ai, Undetectable AI, Quetext AI Detector, and Reality Defender are also included among the entries.
45 AI content detection software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
AI Content Detection Software, ranked on how quickly a newcomer can get going. 23 of the 25 on this page can be tried for free.
- 1 GPTZeroPaid from $8.33/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 2 Polygraf AI DetectorPaid from $9.95/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 3 PangramPaid from $1.67/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 4 ProofademicPaid from $15/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 5 Winston AIPaid from $0.42/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 6 AhrefsPaid from $29/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 7 TraceGPT
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 8 TrinkaFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 9 AI or NotPaid from $5/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 10 Copyleaks AI DetectorPaid from $1.17/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 11 Reality DefenderPaid from $33.25/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 12 HumbotPaid from $0.67/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 13 IlluminartyPaid from $10/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 14 Originality.aiPaid from $12.95/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 15 Quetext AI DetectorPaid from $7.99/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 16 ScribeLensPaid from $0.04/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 17 TrustOriginality.aiPaid from €4.99/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 18 Undetectable AIPaid from $0.42/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 19 Resemble DetectPaid from $23.33/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 20 Detecting-AI.comPaid from $7/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 21 AI Detector ProFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 22 Corrector.appFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 23 BrandWellPaid from $99/mo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 24 EyeSiftFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 25 Blackboard Learn
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
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 The Geeks Club?
GPTZero is ranked #1 of 45 with a score of 7.7. Polygraf AI Detector is second and Pangram third.
How many of these have a free plan?
19 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 how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.