GPTZero vs Smodin
GPTZero uniquely has 15 features · Smodin uniquely has 12 features.
| GPTZero | Smodin | |
|---|---|---|
| Company | ||
| Founded | 2023 | 2021 |
| HQ | New York, USA | Las Vegas, USA |
| AI model | Proprietary | Proprietary |
| User base | 17 million+ | 1 Million+ |
| Platforms | Web, Chrome Extension, Google Docs, Canvas LMS, Google Classroom | Web, Chrome Extension |
| Languages | English, Arabic, Korean, Japanese, Chinese, Italian, French, Spanish, German, Portuguese | 100+ |
| Pricing | ||
| Pricing model | Freemium | Freemium |
| Free plan | Yes | Yes |
| Free trial | No — limited free plan available | — |
| Starting price | $0/mo | $10/mo (Starter, billed annually) |
| Enterprise | Custom — Contact Sales (Team plan also available with shared credits and unified billing) | — |
| All plans | Premium23.99/moProfessional45.99/mo | FreereeStarter12.99/moPremium19.99/mo |
| Positioning | ||
| Best for | Educators, teachers, students, publishers, and businesses needing AI content detection and writing authenticity verification | Students, researchers, bloggers, and content teams needing AI writing, humanization, and plagiarism detection in one platform |
| Differentiator | GPTZero combines 7-component proprietary AI detection with Writing Replay video verification and sentence-level AI highlighting, claiming 99% accuracy independently validated by Penn State and the RAID benchmark. | All-in-one platform combining AI humanizer, AI detector, plagiarism checker, and AI writer in a single workspace tailored for students and content teams |
| Competitors | Turnitin, ZeroGPT, Copyleaks, Originality.ai, Winston AI | QuillBot, GPTZero, Turnitin, Grammarly, Jasper, Copy.ai |
| Features | ||
| AI Reports Download | ✓ | , |
| AI Text Detection | ✓ | , |
| Batch File Scanning | ✓ | , |
| Chrome Extension | ✓ | , |
| Hallucination Detector | ✓ | , |
| Multilingual AI Detection | ✓ | , |
| Academic Search | ✕ | , |
| AI Copywriting | , | ✓ |
| AI Research | , | ✓ |
| AI Summarization | ✕ | , |
| API Access | ✓ | , |
| Brand Voice | — | Basic |
| Browser Extension | ✓ | , |
| Bulk Generation | , | ✓ |
| Citation Generation | ✓ | , |
| Content Editor | , | ✓ |
| Data Privacy | ✓ | , |
| Document Upload | ✓ | , |
| Export Formats | PDF — downloadable AI reports | — |
| Fact Checking | ✓ | , |
| Follow Up Questions | ✕ | , |
| Grammar Style | , | ✓ |
| Image Generation | , | ✕ |
| Long Form Writing | , | ✓ |
| Mobile App | ✕ | , |
| Multi Source Synthesis | ✕ | , |
| Paraphrasing | , | ✓ |
| Plagiarism Checker | — | Built-in |
| SEO Optimization | , | ✓ |
| Short Form Writing | , | ✓ |
| Team Collaboration | ✓ | , |
| Templates | , | ✓ |
| Web Search | ✕ | , |
| Integrations | ||
| API Access | ✓ | ✓ |
| Browser Extension | ✓ | , |
| Chrome Extension | , | ✓ |
| CMS | , | ✕ |
| Google Docs | , | ✓ |
| Google Docs Export | ✓ | , |
| Key Integrations | Google Docs, Google Classroom, Canvas LMS, Chrome Extension, Zapier, API | Chrome Extension (Google Docs & browser), API access |
| Notion Integration | ✕ | , |
| Wordpress | , | ✕ |
| Zapier | , | ✕ |
| Zotero Integration | ✕ | , |