What it is
An AI detection tool that claims 99.98% accuracy across 26+ AI models including recent ChatGPT, Claude, and Gemini versions. Pangram analyzes text passages to determine whether they were human-written or AI-generated. The tool uses proprietary detection algorithms rather than wrapping existing models. Early reviewers include educators and content managers checking submissions, though the small sample of 41 reviews leans negative on accuracy claims.
At a glance
Uses proprietary AI detection models specifically trained to identify text from 26+ AI models including ChatGPT, Claude, and Gemini. The specialized fine-tuning for AI detection and validation from University of Chicago and Maryland researchers demonstrates genuine technical differentiation from generic text analysis tools.
Strong evidenceQuality score
Pangram AI content detection for text and files, but false positives on human writing.
This score is our editorial judgment, computed automatically from the sources, weights, and dates shown above. It reflects the data we could verify as of August 28, 2026, not a guarantee or statement of fact about Pangram. Third-party ratings and quotes belong to their original platforms and authors. Thin data lowers our confidence label, and we say so instead of guessing. Work on Pangram? Dispute any datapoint and we will review it, publish your response, and correct verified errors.
Plans
2,000 words/day + 3 image scans; Individual $20/mo for heavy use
Based on 19 classified review complaints about rate limits, credits, and billing.
Community feedback
Ratings and quoted comments below are aggregated from third-party sources and reflect those users' views, not SearchTools.ai's.
themes inside the Sentiment pillar — not score ingredients
“WARNING: If you're getting an unexpected result you may not be on the actual pangram site. My search result listed a "sponsored" Pangram site which appears to deliberately produce incorrect results. The URL of this bogus site is textguard.ai. It told me that my text (below) was 77% AI generated. I later realized that this was a nefarious site. The Pangram site corrected identified my text as human-generated. I've spent years working on an idea introduced by an essay. Pangram correctly sa”
“I wrote this essay myself, about my life and English is my second language. AI corrected my grammar, that is all. Pangram told me it was '100% AI, the entire text.' That is seriously BS. Human-written with grammar help is not '100% AI,' and a tool that cannot tell the difference has no business being that confident about a person's work. Thank you for ruining my valuable work that was called out by idiot people who deeply trusted in your silly AI who cannot tell the difference. SHAME ON YOU!!! ”
“This is the only AI classifier I’ve used that works. Any time I’m reading a blog post or article and I have a suspicion that it is AI generated, I check it with Pangram. They warn you up front that it can give inaccurate results for passages under 150 words, but for longer text, it’s pretty much a guaranteed accurate result. That said, I cannot prove it, BUT I am willing to bet that the people who spam this product with 1 star reviews and claim “It flagged something as AI that I wrote MYSELF” di”
“This is not consistent and unreliable. This flagged my cover pages/title pages/index at 88% AI, and marked my reference page as being plagiarism. Also indicated a literature review that I did, which has in-text citations throughout, as AI. It's cited because they aren't my ideas/words; credit was given to the original author, and it is not AI. This also flagged the data I collected from a survey as being AI, when it is actual data points that I received, and I attached an image as an appendix”
“Pangram Seems to Work and Students Don’t Like It As the fall semester approaches I have two questions. How good is Pangram.com at avoiding false positives for AI prose, and has student AI use grown since ChatGPT's arrival? Fortunately, I have a dataset with which to answer these questions: seven years of reading responses from my Communication in the Digital Age course. Unfortunately, I don't have all the students' responses over that time, but many of their responses do survive on the students'”
“This is not consistent and unreliable. This flagged my cover pages/title pages/index at 88% AI, and marked my reference page as being plagiarism. Also indicated a literature review that I did, which has in-text citations throughout, as AI. It's cited because they aren't my ideas/words; credit was given to the original author, and it is not AI. This also flagged the data I collected from a survey as being AI, when it is actual data points that I received, and I attached an image as an appendix”
“I am being forced to use this AI detected tool for courses at Capella University. This tool give false positive results. I have screenshots of proof showing that when I put a single paragraph into the tool that was completely written by me without any AI help, I get the result of 100% human written. Now if I put all the paragraphs together into this tool, the result is 100% AI written. How can the same individual paragraphs submitted go from 100% human written to all paragraphs submitted tog”
“Pangram AI tespit programı, metinler üzerinde tutarlı ve güvenilir sonuçlar vermemektedir. Aynı metne yalnızca bir cümle eklediğimde oranı %0’dan %100’e çıkarması, uzun bir metne eklediğimde ise oranı tamamen farklı değerlendirmesi programın ciddi biçimde hatalı çalıştığını göstermektedir. Ayrıca hiçbir değişiklik yapılmadan tekrar test edildiğinde bile sonuçlar sürekli değişmektedir. Teknik ifadeler, sayısal veriler veya insan tarafından yazılmış nötr cümleler dahi %100 AI olarak işaretlenebilm”
“Extremely easy to use, and it makes detecting AI generated content or partially AI content easy to spot.”
“Great review performance, but still cumbersome interface and capacity to streamline results. Also unable to handle large files with a lot of images”
“So at my first opportunity, I decided to check whether or not I could permanently disable the "AI detection" fraudulent tool on Substack publications and there's no way to actually do it without actually using the tool you want to disable. According to the "Substack Support AI", the only way to disable the fraudulent Pangram detection AI is to first run the AI on your posts and to individually then disable the AI detection tool per post. But you can only do this AFTER you've run the "AI detectio”
“Just FYI, you can turn it OFF and REPORT false positives. But you can’t do it until it’s already scanned your texts (that’s sus in itself). I think if enough people turn it off and report false positives maybe Substack will rethink their decision to partner with this flawed company before all the good writers leave.”
A composite of the quality dimensions weighted by mention volume, then capped by predator / abuse-detection rules.
Watch & learn

Why I use Pangram 4 (and why you shouldn't trust it blindly)
brnnnmcdnld1 month ago

Can AI Detectors Be Trusted? Pangram 4 and the False-Positive Problem
DrLitman1 month ago

How to use Substack's AI Detector and How to Disable It
ingridzapataread1 month ago

How reliable is Substack's new AI Detector?
patrick-gerard15 days ago

Pangram vs Scribbr: Which AI Detector Actually Works?
aicheckerdetector15 days ago

Pangram Review (2026): the honest take — it will occasionally flag genuinely human writing as AI…
AIBuilderMarketplace1 month ago
Capabilities
Analyzes text to estimate whether it was written by a human or AI
Scans text against sources to detect copied passages and flag originality issues
Identifies whether content was AI-generated by analyzing text or media signals
The honest take
Distinct themes surfaced across 21 reviews from 2 sources — each grounded in real review text, ranked by how often it comes up.
Questions
Pangram is an AI content detection tool that identifies AI-generated text and images with 99.98% accuracy. It can detect content from over 26 AI models including ChatGPT, Claude Opus 5, Gemini 3, and others, while also providing plagiarism checking and supporting over 20 languages.
Yes, Pangram offers a free tier that includes 2,000 words per day and 3 image detection scans daily, plus browser extension access and Google Docs integration. Paid plans start at $20/month for the Individual plan with 300,000 words and 100 image scans monthly.
Pangram achieves a false positive rate of just 1 in 10,000 (0.01%), significantly outperforming competitors like GPTZero which has a 2.4% false positive rate. This accuracy has been verified by independent research from the University of Chicago and University of Maryland.
Yes, Pangram can detect AI assistance in human-written text that has been edited or enhanced by AI tools. This feature helps identify content that may have started as human writing but was subsequently modified using AI assistance.
Pangram supports multiple input methods including copy-paste text, file uploads in PDF, DOCX, and RTF formats, plus browser extensions and Google Docs integration. It also includes OCR capabilities for processing scanned documents.
Yes, Pangram offers enterprise solutions with custom LMS integrations for Canvas, Google Classroom, Moodle, and Brightspace. These integrations allow educators to seamlessly incorporate AI detection into their existing workflows and grading systems.
Yes, Pangram includes image detection capabilities that can identify AI-generated visual content, currently available as a research preview feature. The free plan includes 3 image scans daily, while paid plans offer 100-500 monthly image scans.
Pangram supports AI detection across 20+ languages, making it suitable for international educational institutions and global enterprises that need to verify content authenticity in multiple languages.
Yes, Pangram provides segment-by-segment analysis that highlights specific portions of text identified as AI-generated and indicates the degree of AI involvement. It also includes interpretability features that explain which text patterns triggered the AI detection.
More Like This