GPTZero vs Silvi
GPTZero uniquely has 13 features · Silvi uniquely has 10 features.
| GPTZero | Silvi | |
|---|---|---|
| Company | ||
| Founded | 2023 | — |
| HQ | New York, USA | Copenhagen, Denmark |
| AI model | Proprietary | Proprietary |
| User base | 17 million+ | — |
| Platforms | Web, Chrome Extension, Google Docs, Canvas LMS, Google Classroom | Web |
| Languages | English, Arabic, Korean, Japanese, Chinese, Italian, French, Spanish, German, Portuguese | English primarily |
| Pricing | ||
| Pricing model | — | Freemium |
| Free plan | Yes | Yes |
| Free trial | No — limited free plan available | No — free plan available indefinitely |
| Starting price | $0/mo | €19/mo |
| Enterprise | Custom — Contact Sales (Team plan also available with shared credits and unified billing) | Custom, billed annually |
| All plans | Premium$23.99/moProfessional$45.99/mo | BasicFreeRapid€40/moPlus€120/moEnterpriseCustom |
| Positioning | ||
| Best for | Educators, teachers, students, publishers, and businesses needing AI content detection and writing authenticity verification | Researchers, academics, and scientific teams conducting systematic literature reviews |
| 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. | Silvi combines transparent PDF-based data extraction with direct highlighting, AI-assisted screening and coding, and built-in collaboration tools specifically designed for systematic literature reviews with scientific rigor. |
| Competitors | Turnitin, ZeroGPT, Copyleaks, Originality.ai, Winston AI | Covidence, Rayyan, Rayyan AI, Distiller SR |
| Features | ||
| AI Reports Download | ✓ | — |
| AI Text Detection | ✓ | — |
| AI Data Extraction | — | ✓ |
| AI Screening | — | ✓ |
| Batch File Scanning | ✓ | — |
| Blinding of Decisions | — | ✓ |
| Bulk Screening | — | ✓ |
| Chrome Extension | ✓ | — |
| Collaborative Reviews | — | ✓ |
| Hallucination Detector | ✓ | — |
| Multilingual AI Detection | ✓ | — |
| Pubmed Integration | — | ✓ |
| Academic Search | ✕ | ✓ |
| AI Summarization | ✕ | ✓ |
| API Access | ✓ | — |
| Browser Extension | ✓ | ✕ |
| Citation Generation | ✓ | ✓ |
| Data Privacy | ✓ | — |
| Document Upload | ✓ | ✓ |
| Export Formats | PDF — downloadable AI reports | Excel, reference export formats |
| Fact Checking | ✓ | ✕ |
| Follow Up Questions | ✕ | ✕ |
| Mobile App | ✕ | ✕ |
| Multi Source Synthesis | ✕ | ✓ |
| Team Collaboration | ✓ | ✓ |
| Web Search | ✕ | ✕ |
| Integrations | ||
| API Access | ✓ | — |
| Browser Extension | ✓ | ✕ |
| Google Docs Export | ✓ | ✕ |
| Key Integrations | Google Docs, Google Classroom, Canvas LMS, Chrome Extension, Zapier, API | PubMed, OpenAlex, ERIC, Zotero, Mendeley, EndNote, Web of Science |
| Notion Integration | ✕ | ✕ |
| Zotero Integration | ✕ | ✓ |