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Is Pangram accurate?

How Pangram measures accuracy, and how Pangram 4.

Annamieka Aerts
Annamieka AertsOct 16, 2026
Is Pangram accurate?

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Seeing in Pangram Space
Research
Seeing in Pangram Space
Exploring the internal representations of the latest Pangram model.
How AI Detection Works
Research
How AI Detection Works
Dive into the technical foundations behind Pangram's AI detection stack and understand how we achieve low false positive rates across modalities.
Is Pangram accurate?
AI Education
Is Pangram accurate?
How Pangram measures accuracy, and how Pangram 4.
Annamieka Aerts
Annamieka Aerts
Oct 16, 2026
AI Helps Write Nearly 50% of Press Releases
Case Studies
AI Helps Write Nearly 50% of Press Releases
Pangram scanned 178,672 PR Newswire press releases and found AI-generated text in 34% of them over the past year, climbing to 48% by June 2026.
Annamieka Aerts
Annamieka Aerts
Sep 1, 2026
Introducing Pangram 4
Product Updates
Introducing Pangram 4
Introducing Pangram 4, the latest generation of our AI text detection model.
Max Spero
Max Spero
Jul 29, 2026
Pangram 4 Technical Overview
Product Updates
Pangram 4 Technical Overview
A technical overview of Pangram 4, our latest AI text detection model: how it was built, how it was evaluated, and how it compares to Pangram 3.
Annamieka Aerts
Annamieka Aerts
Jul 29, 2026
Introducing Pangram Image Detection (Research Preview)
Product Updates
Introducing Pangram Image Detection (Research Preview)
Introducing a research preview of Pangram's AI image detection model.
Rachel StajduharBradley Emi
Rachel Stajduhar and Bradley Emi
Jul 29, 2026
AI Content Is Everywhere on Social Media, Especially LinkedIn
News
AI Content Is Everywhere on Social Media, Especially LinkedIn
We scanned over 1 million social media posts for AI content.
Max SperoAnnamieka Aerts
Max Spero and Annamieka Aerts
Jul 9, 2026
Pangram Space: an Interactive Research Project
News
Pangram Space: an Interactive Research Project
Introducing Pangram Space, an interactive embeddings explorer for Pangram 3. 3.
Elyas Masrour
Elyas Masrour
Jun 18, 2026

AI Education

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Where are the women and girls in AI? Resources to improve participation
AI Education
Where are the women and girls in AI? Resources to improve participation
Artificial intelligence, despite having only become a mainstream phenomenon in the last few years, has already fundamentally changed how we learn, work, communicate, shop, create, and make decisions.
Alex Roitman
Alex Roitman
Nov 4, 2026
Is Pangram accurate?
AI Education
Is Pangram accurate?
How Pangram measures accuracy, and how Pangram 4.
Annamieka Aerts
Annamieka Aerts
Oct 16, 2026
Is your image still real after AI edits?
AI Education
Is your image still real after AI edits?
Why does Pangram flag locally edited AI images as fully AI?
Isaac Kasahara
Isaac Kasahara
Sep 28, 2026

Product Updates

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Introducing Pangram Image 1.0
Product Updates
Introducing Pangram Image 1.0
Introducing Pangram Image 1. 0, our AI image and video detector.
Isaac Kasahara
Isaac Kasahara
Nov 4, 2026
Pangram 4 Migration Guide
Product Updates
Pangram 4 Migration Guide
All you need to know to migrate to Pangram's latest flagship model!
Elyas Masrour
Elyas Masrour
Aug 6, 2026
Introducing Pangram 4
Product Updates
Introducing Pangram 4
Introducing Pangram 4, the latest generation of our AI text detection model.
Max Spero
Max Spero
Jul 29, 2026
30,000+ downloads, 4.6

Right click & Check for AI anywhere on Chrome.Firefox.

Catch writing from ChatGPT, Claude, Gemini, and more with the Pangram extension for Google Chrome.Firefox.

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Also available as a Firefox extension.

Also available as a Chrome extension.

News

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A call for new Pangram evaluations
News
A call for new Pangram evaluations
We are calling for new third-party evaluations of Pangram and offering researchers credit grants with no publishing terms.
Max Spero
Max Spero
Nov 6, 2026
Does Pangram Detect Fable 5.1?
News
Does Pangram Detect Fable 5.1?
Can Pangram 4 detect Anthropic's newest model, Fable 5. 1?
Annamieka AertsKatherine Thai
Annamieka Aerts and Katherine Thai
Sep 3, 2026
Can Pangram Detect Claude Opus 5?
News
Can Pangram Detect Claude Opus 5?
Yes! Pangram detects Claude Opus 5 in 1,105/1,107 (99. 82%) of our tested examples.
Katherine Thai
Katherine Thai
Jul 23, 2026

Case Studies

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Can Pangram detect Gemini 4 Argon?
Case Studies
Can Pangram detect Gemini 4 Argon?
Yes. Pangram detects Gemini 4 Argon in 2,318/2,341 (99. 02%) of our tested examples.
Annamieka AertsKatherine Thai
Annamieka Aerts and Katherine Thai
Nov 2, 2026
Can Pangram detect GPT-6.1 Sol?
Case Studies
Can Pangram detect GPT-6.1 Sol?
Yes. Pangram detects GPT-6. 1 Sol in 2,188/2,215 (98. 78%) of our tested examples.
Annamieka Aerts
Annamieka Aerts
Nov 2, 2026
Can Pangram detect Claude Haiku 5.5?
Case Studies
Can Pangram detect Claude Haiku 5.5?
Yes. Pangram detects Claude Haiku 5. 5 in 2,365/2,372 (99. 70%) of our tested examples.
Annamieka Aerts
Annamieka Aerts
Nov 2, 2026