Turnitin AI Writing Detection vs GPTZero vs Originality.ai vs Pangram Labs
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Turnitin AI Writing Detection
The default campus AI detector, licensed through Turnitin Originality
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Originality.ai
Publisher-grade AI detection and plagiarism checking built for content...
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Pangram Labs
AI-text detector with the lowest false-positive rate in a Chicago stud...
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| RECATOOLS Score | 6.8 / 10 | 7.8 / 10 | 7.8 / 10 | 8.1 / 10 |
| Capability | — | |||
| Value for money | — | |||
| Ease of use | — | |||
| ASEAN readiness | — | |||
| API quality | — | |||
| Pricing | Enterprise | Freemium | Freemium | Freemium |
| Free tier | — | 10,000 words a month with the basic AI scan, one advanced scan and five AI highlights in the Chrome extension | Free Basic plan: 3 AI-detection scans a day, no trial of the paid features | Free plan after sign-up: 20 AI text checks a day, including AI-assistance detection; the homepage also offers 3 free AI image scans a day |
| Paid from | Institutional quote only (requires a Turnitin Originality licence) | Premium SGD 25.99/month, or SGD 13.99/month billed annually (as shown in Singapore) | Pro from $12.95 a month billed annually | $20/month (Individual), or $180 billed annually |
| Has API | ✓ | ✓ | ✓ | ✓ |
| Open source | ✗ | ✗ | ✗ | ✗ |
| Free to use | ✗ | ✓ | ✓ | ✓ |
| Users | — | 10M+ registered users; 380,000+ educators | Used by content agencies, SEO publishers, and educators; ~$2.3M revenue as of mid-2025 | Used by businesses and institutions; a small team |
| Founded | 1998 | 2023 | 2022 | 2023 |
| Maker | Advance (Advance Publications); acquisition closed April 2019 | Superhuman | Originality.AI Inc. | Max Spero (CEO) and Bradley Emi (CTO) |
| Verdict | Turnitin's detector is the campus default and has kept pace with new models and humanizer tools. Turnitin says false positives stay under 1 per cent on documents with over 20 per cent AI writing, but buys that by under-r... |
GPTZero remains one of the most complete AI-detection suites for schools and editors: sentence-level highlighting, paraphraser detection, plagiarism and hallucination checks, authorship replay and LMS integrations, with... |
Originality.ai remains the sharpest purpose-built option for content teams checking AI authorship and plagiarism in the same pass — the credit-based workflow bundles detection, plagiarism, readability, fact-checking and... |
Pangram has the strongest outside evidence of any commercial AI detector we list: a University of Chicago working paper found its false positive rate essentially zero on its test corpus, lower than GPTZero and Originalit... |
| Full review → | Directory listing → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.