What is Originality.AI?
Reviewed Originality.AI's site, docs, and pricing as of 2026-10-26. Not deployed yet. It bundles AI detection, plagiarism, readability, grammar, and fact-checking into one credit pool, with Pro at $12.95/mo for 2,000 credits (200K words) that renew — and expire — monthly.
Key Features
AI Checker 5.0 & 5.0 Max
Whole-document scores with sentence-level highlights; the vendor claims accuracy on GPT-6 Astra, Claude Fable 5, Gemini 3, Kimi K3, and DeepSeek V4.
Plagiarism & fact checking
Combined AI and plagiarism scans cost 2 credits per 100 words; the fact and hallucination checker reviews claims against cited sources.
Deep Scan & sentence highlights
Shows why text is likely flagged as AI and how to edit it into more natural phrasing.
Team, API & extensions
Bulk scan, team roles, browser extensions for Chrome and Firefox, Moodle and Google Classroom support; API access and MCP arrive on Enterprise.
Pros & Cons
What works
- Full originality stack — AI detection, plagiarism, readability, grammar, and fact/hallucination checks — funded from one credit balance
- Deep Scan explains which sentences look AI-generated and suggests ethical edits
- Writing Replay in the Chrome extension evidences authorship while scanning in Google Docs
- Replies to 100% of negative Trustpilot reviews, typically within 24 hours
Watch out for
- Subscription credits expire monthly — unused Pro credits vanish at renewal
- Re-scans charge full credits even after minor edits
- October 2026 5.0 model update drew accuracy complaints and removed legacy models without refunds
- Extra seats add $8.62–$19.04/mo each, so light users pay for capacity they never scan
Who is it for?
Editors & agencies auditing freelance content
Bulk scan, team management, and shareable PDF reports are Pro defaults; 2,000 credits/mo covers 200K words of AI-only checks.
Web publishers needing audit trails
1-year scan history and downloadable reports on every paid plan; Enterprise adds API access for pipeline checks.
Teachers & students
Chrome extension plus Moodle/Google Classroom support exist, but the vendor's own FAQ says a score alone should not drive academic-integrity decisions.
Solo bloggers scanning occasionally
Monthly credit expiry burns the 200K-word allowance; the one-time 100 free credits or free detectors suit light use better.
Reviewed Originality.AI's site, docs, and pricing as of 2026-10-26. Not deployed yet, so this is desk research, not hands-on testing.
Originality.AI markets itself to people who check other people's writing. The site claims it is the most accurate AI detector in third-party studies and lists coverage of current models — GPT-6 Astra, Claude Fable 5, Gemini 3, Kimi K3, DeepSeek V4. One credit pool funds the whole suite: AI detection, plagiarism, readability, grammar, guideline checks, and a fact and hallucination checker.
Pricing and true cost
Everything runs on credits; 1 credit scans 100 words. The free tier gives 100 credits one-time (10K words). Pro costs $12.95/mo and renews 2,000 credits monthly — 200K words — plus Deep Scan, bulk scan, a 1-year scan history, PDF reports, and team management. Enterprise costs $136.58/mo for 15,000 credits (1.5M words) and API access.
| Plan | List price | What adds real cost |
|---|---|---|
| Pro | $12.95/mo | Seats +$8.62/mo each; AI+plagiarism combo burns 2 credits per 100 words; unused credits expire monthly |
| Enterprise | $136.58/mo | Seats +$19.04/mo each |
Mind the combo math: running AI and plagiarism together halves 200K words to 100K. The $24 annual saving on Pro is real, but the monthly toggle costs more.
The Catch
Credits expire monthly. Pro and Enterprise balances renew monthly and don't roll over, so an infrequent solo blogger forfeits whatever share of 200K words went unscanned that cycle. (Only separately purchased packs last 2 years, and subscription credits get consumed first.) Re-scans also sting: a G2 reviewer reports re-running a piece after a one-sentence edit still charges credits for the entire word count. Model updates carry risk too — after the October 2026 release of 5.0/5.0 Max, Trustpilot reviewers described pre-AI-era documents scoring 90%+ AI and legacy models (Lite 1.0.0, Turbo, Academic) disappearing with refund requests refused. The vendor's own FAQ concedes a score should never stand alone.
Who it fits
Originality.AI is built for people who publish other people's words. Free detectors are built for people checking their own. Editors auditing freelancers, agencies running bulk scans, and publishers needing shareable audit trails get the most here; occasional solo writers mostly buy credits they expire. Detection stays probabilistic across the whole category — false positives cluster around AI-touched human text, and Grammarly-style rewrites are a named trigger. For the education-first alternative, see GPTZero, or browse the best AI SEO tools to see where detection slots into a publishing stack.
Originality.AI FAQ
How many credits does a scan use?
What happens to unused subscription credits?
Can an AI score justify action on its own?
Alternatives to Originality.AI
Student-facing essay suite with a detector-bypass humanizer — transparent quotas, vendor-only pass-rate claims, and a two-review Trustpilot record.
Budget AI humanizer with a built-in detector loop — cheap entry, tight output caps, and an 'Unlimited' plan with a guardrails asterisk.
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