Originality.AI | Plagiarism checker, AI content detection, API access | High accuracy, detailed reports | Expensive for individual use | $0.01-$0.03 per credit |
GPTZero | Free basic version, measures perplexity and burstiness | User-friendly, quick results | Limited features in free version | Free - $9.99/month |
Writer.com | AI content detector, writing assistant | Comprehensive writing tool | Primarily for business use | $18/month - Custom |
Content at Scale | AI detector and content optimizer | SEO-focused, high accuracy | Expensive for small-scale use | $250/month - $1,500/month |
Copyleaks | Plagiarism and AI detection, multiple language support | Versatile, good for academic use | Can be complex for beginners | $10.99/month - Custom |
Sapling | AI writing assistant with detection capabilities | Improves writing process | Limited standalone detection features | Free - $25/user/month |
ZeroGPT | Simple, free AI content checker | Easy to use, no registration required | Basic features, potential false positives | Free |
Crossplag | Plagiarism and AI content detection | Affordable, good for students | Limited advanced features | €9.99/month - €99.99/year |
Scribbr | Academic focused, plagiarism and AI detection | High accuracy, detailed reports | Primarily for academic use | $19.95 per check - Custom |
Turnitin | Comprehensive plagiarism and AI detection | Industry standard in academia | Expensive, mainly for institutions | Custom pricing |