AI-Detector vs Second Opinion Extension: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Pricing models differ: AI-Detector is paid, Second Opinion Extension is free. Feature lists share 0 overlapping items across the two listings.
Check whether text is human-written or AI-generated by analyzing the AI content percentage.
Second Opinion Extension is a free browser extension that fact-checks selected web text with Grok AI to flag inaccuracies and bias.
| Attribute | AI-Detector | Second Opinion Extension |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | paid · $5.91 | free |
| Votes | 0 | 0 |
| Category | AI Checker | AI API |
| Feature | AI-Detector | Second Opinion Extension |
|---|---|---|
| AI-Detector checks AI content percentage to see if text is human or AI-generated | ||
| Free to install and use | ||
| Easy to use with a simple right-click action | ||
| Provides quick fact-checks | ||
| Supports multiple browsers | ||
| Requires a Grok API key | ||
| which incurs token usage costs | ||
| Accuracy depends on Grok AI | ||
| so verification from multiple sources is still recommended |