AI · alternatives · 2026

24 alternatives to GPT-Zero

Free AI Content Detector for ChatGPT, GPT-4, & More

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. GPT-Zero launched in 2024; newer entries below may have overtaken it.

1. 1
   TraceGPT AI Detector▲180

   AI and ChatGPT content detector with 97% accuracy

   2023 · plagiarismcheck.org · its alternatives →

2. 2
   X Detector▲115

   AI detector & checker for ChatGPT, Claude & Gemini

   2024 · xdetector.ai · its alternatives →

3. 3
   Wordvice AI Detector▲107

   Best ChatGPT detector

   2024 · wordvice.ai · its alternatives →

4. 4
   AI Detector - Text Validator▲76

   Verified ChatGPT, GPT3.5, GPT4 text detector

   2023 · apps.apple.com · its alternatives →

5. 5
   Detect GPT▲241

   A Chrome extension that spots AI-generated content

   2022 · thomas.io · its alternatives →

6. 6
   AI Text Checker▲19

   Free AI Detector | AI Content Detector

   2025 · aitextchecker.pro · its alternatives →

7. 7
   Chat GPT Detector▲6

   Check your content pattern is AI or human

   2023 · grammica.com · its alternatives →

8. 8
   ZeroGPT Plus▲14

   Free AI content detector

   2024 · zerogpt.plus · its alternatives →

9. 9
   Zero GPT▲8

   Detect AI content for free

   2025 · oya.news · its alternatives →

10. 10
    ZeroGPT.CC▲3

    AI Content Detector - Detect ChatGPT Text

    2023 · zerogpt.cc · its alternatives →

11. 11
    AI Text Detector▲8

    a free tool for everyone to detect the Ai generated content

    2023 · its alternatives →

12. 12
    AI Detector by ContentDetector.AI▲99

    Free and accurate AI detector to check AI content

    2023 · moxby.com · its alternatives →

13. 13
    Undetectio▲138

    Make AI-generated text undetectable by AI content detectors

    2023 · undetectio.com · its alternatives →

14. 14
    AI Content Detector▲11

    Detect Content Generated by ChatGPT, Gemini, and Deepseek

    2025 · scribowriter.com · its alternatives →

15. 15
    AI Detector▲87

    A lightweight and super fast AI detector that actually works

    Nov 2025 · aidetector.us.com · its alternatives →

16. 16
    AI Checker Tool▲78

    Free AI Content Detector

    2023 · aidetector.com · its alternatives →

17. 17
    SOCIAL GPT▲147

    AI tool for social media - AI detector + comment generator

    2023 · its alternatives →

18. 18
    ZeroGPT▲2

    ZeroGPT : a ChatGPT detector that detect AI written content

    2023 · zerogpt.com · its alternatives →

19. 19
    Undetectable AI▲13

    AI detector, AI checker, & AI humanizer

    2024 · undetectable.ai · its alternatives →

20. 20
    AI Content Detector▲93

    Check if your content is detected as AI generated

    2023 · krater.ai · its alternatives →

21. 21
    ChatGPT4o▲59

    Free Chat GPT 4o (GPT-4o)

    2024 · its alternatives →

22. 22
    AI Content Detection - AI Detector Free▲21

    It's free.Input the content, click to detect!

    2023 · its alternatives →

23. 23
    AIscan24 - Free AI Detector▲4

    Detect AI-generated text for free without sign-up.

    Feb 2026 · aiscan24.com · its alternatives →

24. 24
    ZeroGPT Detector▲107

    One of the world's most trusted & widely used checkers

    2023 · zerogptdetector.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →