Deep AI Detector vs Originality.ai
Originality.ai is the go-to detector for SEO agencies and content publishers — credit-based, bundled with plagiarism scanning, marketed hard at the affiliate space. Deep AI Detector is the transparent alternative: industry-leading accuracy trained on 2 billion+ samples, subscription pricing instead of credits, and per-sentence verdicts you can show a writer.
The short version
Pick Originality.ai if you're already on a credit-based content stack and want plagiarism + AI detection from a single vendor, plus their AI-rewrite detection feature. The credit model rewards bursty usage — pay for what you scan, no ongoing subscription pressure.
Pick Deep AI Detector if you want predictable subscription pricing, industry-leading accuracy trained on 2 billion+ samples, and per-sentence verdicts at the cheapest paid tier. Our plagiarism scanner pulls from open academic sources alongside the open web — reviewers can verify the matched paper, not just see a score.
Where Originality.ai is genuinely strong
- Credit model. Pay for exactly what you scan. Great for occasional or seasonal use.
- Plagiarism + AI in one workflow. Single dashboard, single billing.
- AI-rewriting detection. Their dedicated feature for catching AI rewrites is well-marketed.
- Established in SEO. Recognised by content agencies and ad networks.
Where Deep AI Detector wins
- Trained on 2 billion+ samples. Industry-leading accuracy backed by a corpus that spans every major LLM family plus paraphrased and humanized text.
- Predictable cost. Flat $14.99 / $34.99 / $99.99 / $179.99 / $499 / $749 / $999 per month tiers, no credit drain anxiety. Run as many detections as your tier allows.
- Per-sentence verdicts on every paid tier. Starter ($14.99) ships per-sentence highlighting; Originality reserves some highlighting features for higher tiers.
- Academic-grade plagiarism sources. We pull from open academic indexes alongside the open web — sources you can cite in a paper. Their proprietary index is fine for SEO but opaque for academic review.
- Free tier on the real model. 5 detections/mo (registered) on the same advanced detection model paid plans use. Theirs is trial-only.
Side-by-side
| Feature | Deep AI Detector | Originality.ai |
|---|---|---|
| Free tier | 5 detections/mo registered · 1,000 words | Trial credits — no ongoing free tier |
| Cheapest paid plan | $14.99/mo (Starter) | $14.95/mo (Base) |
| Pricing model | Subscription · flat monthly | Credits — 1 credit / 100 words |
| Detection approach | Advanced detection model · trained on 2B+ samples | Proprietary ML — closed |
| Per-sentence verdicts | Yes — every paid tier | Yes — paragraph/sentence highlighting |
| Paraphrased AI catching | Designed for it — catches rewrites others miss | AI-rewriting detection feature |
| Plagiarism scanning | Starter $14.99 and up — web + academic + reference sources | Bundled in higher tiers |
| API access | Pro tier ($34.99) — coming soon | Available on most plans |
| Confidence band | Reported on every result | Score only |
| Text retention default | 24h then deleted | Account-bound history |
| Cancellation | Self-service, no penalty | Per contract |
A word on credits vs subscriptions
Credit-based pricing reads cheaper at low volume but rapidly outpaces a flat subscription once you hit a few hundred scans a month. At our Pro tier ($34.99 / 500 detections / 3,500 words), the same volume on Originality.ai's credit math typically runs more depending on document length. The numbers cross over fast — check your historical scan volume before assuming credits are cheaper.
Try Deep AI Detector against Originality.ai on your own content
Most SEO teams already have a "ground truth" pile — articles you know are AI, articles you know are human, and ones you're not sure about. That's where comparison matters. Our free tier gives you 5 scans/month on the same advanced detection model paid plans use — enough to test our verdict against Originality's on the cases you care about.
Who chooses Deep AI Detector over Originality.ai
- Agencies with steady volume tired of watching credits drain mid-month. Flat subscription pricing makes margins predictable.
- Academic + editorial reviewers needing per-sentence verdicts that defend in front of a person, not just a number.
- Multilingual content teams covering 20+ languages without bolting on a second tool.
- Privacy-conscious workflows where 24-hour deletion beats account-bound history.
Try Deep AI Detector free
Same advanced detection model on every plan. No credit card. No credit math.