AI Undetectable vs Open Atelier

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

AI Undetectable compared with Open Atelier
Detail	AI Undetectable	Open Atelier
What it does	Check AI-likelihood, humanize robotic passages, and review meaning with an undetectable AI writing workflow built for careful editing.	A writing teacher that reads your book: see what to work on in your chapters, learn why, and check your fix.
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	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	Free plan includes the editor, rule-based chapter check, and lessons with 3 Coach reads, 20 Co-write requests, and 10 questions per month. Atelier plan: $21/month or $189/year (with 3 months free annually) includes 40 Coach reads, 250 Co-write requests, and 150 questions per month. Additional packs:
Key features	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	Rule-based chapter check for dialogue, continuity, point of view, prose and scene habits Findings anchored to your text with linked lessons Exercises on your own passage with re-check Three modes: Human only, Coach, or Co-write Authorship record tracking sources: typed, pasted, imported, or AI-generated Story bible for characters, places and facts over time Import from Word, PDF, Scrivener and other formats Version history for each chapter Export to Word, EPUB, PDF, Markdown and plain text Claude Sonnet 5.5 from Anthropic for AI features
What makes it different	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	Your writing is never used to train AI models Transparent authorship record shows exactly how each sentence arrived AI is optional and controlled per manuscript, with rule-based checks available free Interactive feedback loop with practice exercises before re-checking No API keys or token counting; simple per-action pricing
Community votes	0	0
DR (Domain Rating by Ahrefs)	9 no change since last check	18 no change since last check
Trust Flow (Majestic)	6	0
Citation Flow (Majestic)	30	19
Referring domains (Majestic)	77	6

5 details filled in for both companies.

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