Opsis vs AI Undetectable
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Opsis compared with AI Undetectable
| Detail | 
Opsis | 
AI Undetectable |
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| What it does | Autocomplete and AI assistant for Mac and Windows, built on a private account of your work
| Check AI-likelihood, humanize robotic passages, and review meaning with an undetectable AI writing workflow built for careful editing.
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| Stage | Startup
| Not given
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| Founded | 2026
| Not given
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| Based in | AU
| Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Not given
| 3-day free trial. Basic plan: $5.00/month (10,000 credits/month, charged annually at $60.00). Pro plan: $9.50/month (20,000 credits/month, charged annually at $114.00). Business plan: $15.75/month (35,000 credits/month, charged annually at $189.00). Basic uses 1 credit per input word; Stealth uses 2
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| Key features | - Autocomplete with Tab to accept drafts
- Error detection and fact-checking
- Cross-app integration
- Source attribution for every suggestion
- Context-aware AI assistance
- One-click pause and privacy control
- Encrypted data storage
- Read-only app connections
- Natural writing style matching
| - Support for five languages: English, Spanish, French, German, and Portuguese
- Side-by-side comparison of original and rewritten versions
- Preserves facts, names, numbers, and important claims during rewriting
- API-ready access on Business plan
- Priority rewriting access on Business plan
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| What makes it different | - Finishes sentences from your actual work history and connected files, not generic AI
- Shows source for every suggestion so you can verify it before accepting
- Catches mistakes and contradictions between what you're writing and your work history
- Works inline in the apps you already use without installation
- You stay the author with full control over what gets written
| - Combines detector, humanizer, and review tools in one workspace instead of switching between disconnected tools
- Rebuilds paragraph structure and sentence rhythm rather than just replacing words
- Treats detector scores as review signals rather than guaranteeing bypass of detection
- Published benchmark showing both successful and failed rewrites for transparency
- Money-back guarantee if rewritten text is flagged as not human
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ● no change since last check | 9 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 6 |
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| Citation Flow (Majestic) | 12 | 30 |
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| Referring domains (Majestic) | 1 | 77 |
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4 details filled in for both companies.
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