AI Undetectable vs Jasper
Both are in AI content tools. Here is how their plans, prices and features compare, taken from each vendor's own site.
The main differences
- AI Undetectable's cheapest paid plan is $5/mo, against $59/mo for Jasper.
| AI Undetectable | Jasper | |
|---|---|---|
| Starting price | from $5/mo | from $59/mo |
| Free plan | Not stated by the vendor | Not stated by the vendor |
| Free trial | Yes | Yes |
| Plans | 10K words ($9.99/mo, $5/mo annual, $60/yr); 20K words ($19/mo, $9.50/mo annual, $114/yr); 35K words ($31/mo, $15.75/mo annual, $189/yr) | Pro ($59/mo); Business (Custom pricing) |
| Fees and pricing notes | None stated | None stated |
| Best for | Creators | Not stated |
| Key features | AI text detector that estimates how machine-written a passage looks; Two rewrite modes: Basic and a deeper Stealth rebuild; Image detector for uploaded images or image links; Five writing modes: general, essays, articles, marketing copy and stories | Canvas platform for on-brand content creation; Agents for core marketing workflows; Brand Voices, knowledge assets and audiences (2, 5 and 3 on Pro); 30+ languages |
| Checked on | 2026-10-08 | 2026-10-03 |
Prices change; confirm on the vendor's site before you buy. Full details and sources are on each tool's page.
AI Undetectable
- 3-day free trial on every plan
- Yearly billing is about 50% cheaper
- Detector and rewriter in one workspace
Trade-offs
- No free plan, and the selected plan is billed after the trial unless cancelled
- Monthly word allowances do not roll over
- Detector scores are estimates, not proof of how a text was written
Jasper
- 7-day free trial of Pro
- On-brand controls built in: brand voice, knowledge and audiences
- Agents for GEO, translations and research on Business
Trade-offs
- Pro covers 1 seat and is priced per seat
- Pro limits you to 2 brand voices and 3 audiences
- The Business plan has no listed price; API access needs it