AI detector
Isgen alternatives
By Sourabh SinghUpdated 30 September 2026
Isgen alternatives are GPTZero, Copyleaks, Winston AI and TextAsMe.
26,831
US organic visits / mo
1,548
Ranking keywords
Free tier; paid plans
Pricing
Isgen and its alternatives, compared
Traffic figures are estimated US organic visits per month, measured September 2026. They are a proxy for how many people actually use a tool, the one number in this market nobody can fake in a listicle.
| Tool | Price | US visits/mo | Ranking keywords |
|---|---|---|---|
| TextAsMe | Free, unlimited | New | Explains every flag |
| Isgen | Free tier; paid plans | 26,831 | 1,548 |
| GPTZero | Free tier; paid plans for volume and API | 4,517,328 | 7,326 |
| Originality.ai | Pay-as-you-go credits, from about $12.95/mo | 364,155 | 11,622 |
| Copyleaks | From about $9.99/mo | 987,521 | 3,357 |
| Winston AI | From about $12/mo | 78,840 | 2,089 |
What Isgen does well
A newer detector with multilingual support and a usable free tier.
Where it falls short
Little independent validation, and the usual verdict-without-reasoning model.
The verdict
Reasonable as a cross-check. Do not treat any single detector reading as settled.
Where TextAsMe differs
Every tool above returns a score or a rewrite and stops. TextAsMe marks each sentence, names the signal that fired on it, metronome rhythm, low perplexity, dead metaphor, stock transition, no concrete detail, and rewrites toward a measurement of your own writing rather than a generic human average. The writing analysis and your Style DNA run in your browser, and the text you check for a real AI score is never stored.
Isgen alternatives are GPTZero, Copyleaks, Winston AI and TextAsMe.
TextAsMe scans for free with no account and no word cap, showing every flagged sentence and why. The studio and humanizer are paid, $9 a month (Starter), $18.50 (Pro) or $50 (Elite), half price billed yearly. GPTZero also has a free tier.
Free tier; paid plans. Prices were read from vendor pricing pages in September 2026 and change often, check before you subscribe.
Little independent validation, and the usual verdict-without-reasoning model.
