Item logo image for Athena

Athena

https://birefringent-ai.com/athena/
Item media 1 (screenshot) for Athena

Overview

Athena is a fully open-source AI detector trained on 25,180 samples of human text and 35,254 samples of AI-generated text from a…

Athena is a fully open-source AI detector trained on 25,180 samples of human text and 35,254 samples of AI-generated text from a variety of large language models. It started as a research project looking into whether subtle patterns occurring in AI-generated text could be used to estimate a probability that a text was AI generated. Athena was tested on six datasets, covering the topics: politics, sports, culture, lifestyle, opinion and science, with a total of 49,480 text samples ranging from about 100 words to about 400 words in length. Athena achieved an average sensitivity of 98.0% (i.e. 98.0% of human texts were correctly identified), and a recall of 98.7% on text produced by GPT (i.e. 98.7% of GPT-generated texts were correctly identified), 95.9% on Gemini, 94.6% on Deepseek-v3, and 93.7% Claude Haiku, and results ranged for Claude Sonnet, Deepseek-r1, Llama and Mistral. The results of the model evaluation are available on an interactive platform at the web portal: https://birefringent-ai.com/athena, which also contains a short course on large language models and the mechanisms behind AI text generation. For a deep dive into Athena's creation and testing, take a look at my articles on medium.com: https://medium.com/@tomrodolfolee/building-an-ai-detector-from-scratch-part-i-db72bc2bdadb. The full source, train and test data are available at https://github.com/tommyliphysics/athena-source

Details

  • Version
    1.1
  • Updated
    July 2, 2025
  • Size
    30.92KiB
  • Languages
    English
  • Developer
    Website
    Email
    tommyliphys@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Related

Wonder AI - Your GPT writing assistant

4.4

Wonder AI: The AI Writing Assistant That Makes Your Content Stand Out Wonder AI is an AI writing assistant that uses the power of…

Beitha: Control Your Browser with AI

5.0

Beitha is an AI-powered browser extension that takes control of your browser to help you work smarter and faster. Control your…

AIAssist

5.0

AI-based tool on your side, no matter what you're working on, you can browse the internet smarter by leveraging AI to interpret and…

AI In-Page Search

0.0

Want to use AI agent in chrome but worried about if it is producing nonsense? Try AI In‑Page Search and get every response with…

Shoden Ai

5.0

Nezumi AI is a powerful sales automation tool designed to streamline the outbound sales process and maximize efficiency for sales…

DeepKeep Lens

0.0

DeepKeep Lens helps you stay secure when using AI services. It intercepts web requests to apply organizational content checks…

Acedit

4.2

Acedit: Your AI Interview Coach Land Your Dream Job! Nervous about interviews? Struggle to showcase your experience? Acedit boosts…

Auto-Reply

5.0

Auto-Reply: AI-Powered Responses for X Effortless Engagement. AI-Powered Replies. More Impressions. Auto-Reply is your secret…

It's AI: AI Detector

5.0

Detect AI-generated content within one click. Just highlight text and get instant results. ChatGpt plugin included. It's AI is an…

FrameCheck AI

0.0

FrameCheck AI - Your AI-Powered YouTube Fact-Checker Stop misinformation before you share it. FrameCheck AI uses Google's Gemini…

HL Insight

5.0

HL Insight is an AI sales copilot used by thousands of professionals worldwide to automate prospecting, generate ultra-personalized…

Highperformr AI - Phone Number and Email Finder

5.0

Highperformr AI – Prospect Smarter Turn your workflow into a powerful prospecting and research experience with the Highperformr AI…

Wonder AI - Your GPT writing assistant

4.4

Wonder AI: The AI Writing Assistant That Makes Your Content Stand Out Wonder AI is an AI writing assistant that uses the power of…

Beitha: Control Your Browser with AI

5.0

Beitha is an AI-powered browser extension that takes control of your browser to help you work smarter and faster. Control your…

AIAssist

5.0

AI-based tool on your side, no matter what you're working on, you can browse the internet smarter by leveraging AI to interpret and…

AI In-Page Search

0.0

Want to use AI agent in chrome but worried about if it is producing nonsense? Try AI In‑Page Search and get every response with…

Shoden Ai

5.0

Nezumi AI is a powerful sales automation tool designed to streamline the outbound sales process and maximize efficiency for sales…

DeepKeep Lens

0.0

DeepKeep Lens helps you stay secure when using AI services. It intercepts web requests to apply organizational content checks…

Acedit

4.2

Acedit: Your AI Interview Coach Land Your Dream Job! Nervous about interviews? Struggle to showcase your experience? Acedit boosts…

Auto-Reply

5.0

Auto-Reply: AI-Powered Responses for X Effortless Engagement. AI-Powered Replies. More Impressions. Auto-Reply is your secret…

Google apps