Proofademic AI detector
Vendor Proofademic AI Inc. Official site proofademic.ai How this card is sourced
Updated · AI Detector Index editors
Proofademic AI Text Detector reports a 0.2% document false positive rate on a held out set of 4,200 fully human authored academic texts in a March 2026 evaluation, according to the Proofademic AI text detector page (proofademic.ai/ai-text-detector/) read 8 November 2026. The vendor is Proofademic AI Inc., a Canadian corporation at 410 rue Saint-Nicolas, Suite 236, Montreal QC H2Y 2P5, per the terms of service dated 10 April 2026 (proofademic.ai/terms-of-service/, read the same day); the about page gives a New York address, and the card uses the terms because they name the legal entity. Proofademic is one of every AI detector we track, on the same fields as the other twenty-one. How this card is sourced.
What Proofademic detects
| Field | Value | Source |
|---|---|---|
| Content types detected | Text, image, voice | proofademic.ai |
| Generators covered | ChatGPT, GPT-5, Claude, Gemini, other LLMs, Research page: eight frontier LLMs from OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, Alibaba, xAI | proofademic.ai |
| Languages | Arabic, Bahasa, Bulgarian, Catalan, Chinese, Croatian, Czech, Dutch, French, German, Greek, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Ukrainian, Vietnamese | proofademic.ai/multilingual-detection |
| Input limits | Free: one time 1,000 word scan. Paid request limits: 3,500 words on Essential, 8,000 on Premium, 25,000 on Professional. Monthly allowances 200,000 / 400,000 / 600,000 words. Paste text or upload .docx, .txt or PDF; Batch Scan PDF, DOCX, TXT. File size not published. | proofademic.ai/ai-text-detector |
| Free tier | Free $0 /month: 3-Day Trial, no credit card, one-time 1,000 words; includes Multilingual AI Detection, Plagiarism Checker, Report Export. API: 2,000 trial credits (1 credit = 1 word). | proofademic.ai/pricing |
| API | Yes, docs.proofademic.ai | docs.proofademic.ai |
| Integrations | Google Docs (scope requested to analyze a chosen document), Developer platform API for campus systems | proofademic.ai/privacy-policy |
| Data retention | Privacy Policy (Last updated: August 20, 2026): Any text you submit is processed by our proprietary AI models for the purpose of detecting AI-generated content. This processing is automated and does not involve human review. We do not use submitted content for model training or resale. We retain personal data only as long as necessary for the purposes set out in this policy, including for legal, accounting, or reporting requirements. Data may be transferred to and processed in the U.S. Specific retention period for submitted text not published. | proofademic.ai/privacy-policy |
| Ownership | Proofademic AI Inc., a Canadian corporation with a registered address at 410 rue Saint-Nicolas, Suite 236, Montreal QC H2Y 2P5, Canada (Terms, April 10, 2026). Parent company not published. | proofademic.ai/terms-of-service |
Proofademic covers text in the browser tool, with image detection in the API now and a browser version described as coming soon, and voice detection in the API, per the Proofademic home page read 8 November 2026. For text, the home page names ChatGPT, GPT-5, Claude, Gemini and other LLMs; the research page describes eight frontier LLMs from OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, Alibaba and xAI (proofademic.ai/ai-detection-research/, read 8 November 2026). The about page still names GPT-4o, Claude 3.5 and Gemini Pro; the card uses the home and research pages as the current copy.
Proofademic lists 23 languages on its multilingual detection page: Arabic, Bahasa, Bulgarian, Catalan, Chinese, Croatian, Czech, Dutch, French, German, Greek, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Ukrainian and Vietnamese (proofademic.ai/multilingual-detection/, read 8 November 2026). English is not in that list, although the research page describes the product as English-first; the card carries the vendor's count of 23 and keeps the omission visible.
On humanized text, Proofademic describes Paraphrase Shield, which "looks for AI-like patterns that can remain after text is processed through paraphrasing or humanizer tools", naming QuillBot, Undetectable AI, Phrasly, StealthWriter, BypassGPT and Humbot as examples; the research FAQ calls resistance to humanizers "an active area of work, not a solved problem" (proofademic.ai/paraphrase-shield/, read 8 November 2026). The privacy policy, last updated 20 August 2026, says submitted text is processed without human review, is not used for model training or resale, and that personal data is retained "only as long as necessary for the purposes set out in this policy" (proofademic.ai/privacy-policy/, read 8 November 2026). Integrations are Google Docs and a developer platform API for campus systems. Two related cards: Pangram, the other card whose false positive figure comes from the vendor, and Turnitin.
Limits and plans
| Plan | Price | Limits | Checked on |
|---|---|---|---|
| Essential (monthly) | $15 /month | 200,000 words/mo, Multilingual AI Detection, Plagiarism Checker, Batch Scan, Report Export, Sentence-level AI highlighting, Full document scans; 3,500 words per request. | |
| Essential (yearly) | $8 /month, Billed $99 annually | Same as Essential (monthly). | |
| Premium (monthly) | $25 /month | Most Popular. 400,000 words/mo, multi-page documents; 8,000 words per request. | |
| Premium (yearly) | $14 /month, Billed $165 annually | Same as Premium (monthly). | |
| Professional (monthly) | $45 /month | 600,000 words/mo, Top-Up Words, priority support; 25,000 words per request. | |
| Professional (yearly) | $25 /month, Billed $300 annually | Same as Professional (monthly). All purchases are non-refundable. |
The free scan is one time, 1,000 words. Paid plans allow 3,500 words per request on Essential, 8,000 on Premium and 25,000 on Professional, with monthly allowances of 200,000, 400,000 and 600,000 words; uploads accept .docx, .txt and PDF, and Batch Scan takes PDF, DOCX and TXT (AI text detector page, read 8 November 2026).
Prices are from the Proofademic pricing page read 8 November 2026, with the yearly toggle marked "Save 45%". The detector page's line that paid plans "start at $8/month for 200,000 words" is the annual rate; the card carries both billing periods. The free tier is a 3-day trial with no credit card and a one-time 1,000-word scan; the API offers 2,000 trial credits at 1 credit per word (pricing page, read 8 November 2026).
What the vendor claims
Accuracy range of 97.6% to 99.9% across the eight evaluated model families; 92.9% sentence-level F1 on the synthetic mixed-authorship evaluation (AI text detector page; research page study Published May 2026). Site footer: 99.8% detection accuracy for academic workflows.
Proofademic states an accuracy range of "97.6% to 99.9%" across "the eight evaluated model families" and "92.9% sentence-level F1 on the synthetic mixed-authorship evaluation" (AI text detector page, read 8 November 2026). The site footer and about page say "99.8% detection accuracy"; the card uses the research-page range because that page names the models and the method, and quotes the 99.8% beside it. The research page gives the study as published May 2026 and the detector page calls it the March 2026 evaluation; the card carries both, evaluation March 2026 and publication May 2026.
On false positives, Proofademic says: "In Proofademic's March 2026 evaluation, the detector recorded a 0.2% document false positive rate on a held out set of 4,200 fully human authored academic texts." The research page adds a 0.5% non-native false positive rate (proofademic.ai/ai-detection-research/, read 8 November 2026). Proofademic also says: "Results are estimates and should not be the sole basis for an academic-misconduct decision" and "A flag is not proof of misconduct."
What independent studies found
No study in the index has tested Proofademic; the detectors that have been tested are ranked on AI detectors ranked by independent testing.
The two widest nets in the studies index did not reach it either: Weber-Wulff 2023 tested fourteen detectors (DOI 10.1007/s40979-023-00146-z) and Walters 2023 tested sixteen (DOI 10.1515/opis-2022-0158), and Proofademic is on neither list. The RAID benchmark of 2024 evaluated twelve detectors (DOI 10.18653/v1/2024.acl-long.674), again without Proofademic.
The 0.2% on this card comes from Proofademic's own evaluation of 4,200 academic texts, and the ranking marks its source as the vendor. A vendor-run figure on a vendor-chosen sample is a claim about one test, not a measurement anyone outside the company has reproduced.
Where Proofademic appears in the index
Rankings
- AIDI-R-04AI detectors ranked by languages supported
- AIDI-R-05AI detectors ranked by maximum input per check
- AIDI-R-07AI image, voice, video and code detectors ranked by independent studies
- AIDI-R-11AI detectors ranked by named integration surfaces
- AIDI-R-12AI detectors ranked by the upload formats the vendor states
- AIDI-R-17AI detectors ranked by the generator models the vendor names
Fits these use cases, questions and comparisons
- AIDI-U-03AI detectors for copywriters and agencies
- AIDI-U-08AI detectors for researchers checking their own manuscripts
- AIDI-U-10AI detectors for grant and proposal reviewers
- AIDI-U-12AI detectors for localisation and translation teams
- AIDI-U-13AI detectors for government and public sector buyers
- AIDI-Q-01Is there a 100% accurate AI detector? What published tests show
Proofademic appears in two rankings. AI detector false positive rates carries 0.2% on 4,200 human academic texts, marked as vendor-sourced. AI detectors by languages supported places Proofademic at 23 languages, per the multilingual detection page read 8 November 2026.
Proofademic sits on three audience views: AI detectors for business and AI detectors for copywriters and agencies, because of the API and Batch Scan, and AI detectors for job applications, because of the free 1,000-word scan. The detector hub lists all twenty-two cards.
Questions about Proofademic AI detector
What false positive rate does Proofademic report?
0.2% at document level, on a held out set of 4,200 fully human authored academic texts in Proofademic's March 2026 evaluation, plus 0.5% for non-native writers on the research page, both read 8 November 2026. The figures are Proofademic's own.
How much does Proofademic cost?
$15, $25 or $45 USD per month billed monthly for Essential, Premium and Professional, or $8, $14 and $25 per month billed annually at $99, $165 and $300, per the pricing page read 8 November 2026. The plans carry 200,000, 400,000 and 600,000 words per month.
Is there a free Proofademic scan?
Yes, once. The free tier is a 3-day trial with no credit card and a one-time 1,000-word scan, per the pricing page read 8 November 2026. The API separately offers 2,000 trial credits at 1 credit per word.
How many languages does Proofademic detect?
23, per the multilingual detection page read 8 November 2026, from Arabic to Vietnamese. English is not in the published list, although the research page describes the product as English-first.
Sources and revisions
Sources
- proofademic.aiRead 8 November 2026
- proofademic.ai/ai-text-detectorRead 8 November 2026
- proofademic.ai/terms-of-serviceRead 8 November 2026
- proofademic.ai/multilingual-detectionRead 8 November 2026
- proofademic.ai/pricingRead 8 November 2026
- proofademic.ai/apiRead 8 November 2026
- proofademic.ai/privacy-policyRead 8 November 2026
- proofademic.ai/paraphrase-shieldRead 8 November 2026
- proofademic.ai/ai-detection-researchRead 8 November 2026
