GPT2 AI mystery model

PLUS: AI alert system saves lives

Welcome, AI enthusiasts.

The AI rumor mill is in overdrive, and it’s all thanks to a mysterious new model that’s taking the AI community by storm.

With capabilities that appear to match or beat top models, “gpt2-chatbot” has everyone wondering — is this a sneak peek at OpenAI’s next model? Let’s investigate…

In today’s AI rundown:

  • A Mysterious ‘gpt2-chatbot’ appears

  • GitHub unveils Copilot Workspace

  • How to try the mysterious GPT-2 LLM

  • AI-powered alert system saves lives

  • 6 new AI tools & 4 new AI jobs

  • More AI & tech news

Read time: 4 minutes



Image source: Andrew Gao (@itsandrewgao on X)

The Rundown: A mysterious, impressive new AI model called “gpt2-chatbot” just appeared on the Chatbot Arena, showing off advanced capabilities and leading to speculation that it could be an early OpenAI stealth test of GPT 4.5.

The details:

  • The model lacks any official documentation or attribution, but reportedly self-identifies as ChatGPT and created by OpenAI when asked.

  • Users have praised the model for its reasoning, math, coding and even ASCII art skills that seem to match or exceed GPT-4 and above models in testing.

  • Additional speculation includes OpenAI doing quiet benchmarking for a new model before publicly releasing it.

  • To add fuel to the speculative fire, Sam Altman later posted that he has “a soft spot for gpt2“.

Why it matters: There is always an air of mystery surrounding OpenAI, and while this model could just be the rumor mill kicking into overdrive — its capabilities are impressing some of the top minds in the AI community, regardless of who is behind it or what it is.

P.S. You can try out the model yourself using the AI Training tutorial below.


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Image source: GitHub

The Rundown: GitHub just launched Copilot Workspace, a new AI-powered tool to help developers brainstorm, plan, and start projects directly from their coding libraries using natural language.

The details:

  • The feature integrates directly into GitHub repos, allowing devs to describe goals in natural language instead of starting with code.

  • The AI can also generate step-by-step plans and starter code based on the repo's existing codebase.

  • Developers can edit, refine, and run the suggested code directly in Workspace before moving to full development.

Why it matters: With Copilot Workspace, GitHub is taking the popular AI coding assistant to the next level — taking a step closer towards full AI agents that can support developers from ideation to execution, not just find errors in existing code.


The Rundown: “gpt2-chatbot” is a new, highly capable large language model (LLM) with no claimed developers that performs incredibly well at various tasks.

Try it yourself:

  1. Head over to the LMSYS Arena website. It’s completely free.

  2. Click the “Direct Chat” option on the top navigation bar.

  3. Select "gpt2-chatbot" from the dropdown menu labeled “Choose any model to chat.”

  4. Enter your prompt or question in the input field provided.

  5. Try challenging the model with tasks related to reasoning, coding, and math and compare it to other chatbots like GPT-4!

Note: Access to the model is currently limited, with slow response times and a maximum of 8 turns per conversation.


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Image source: Midjourney

The Rundown: A new study of 16,000 patients in Taiwan found that AI intervention significantly reduced deaths in hospitals by using an AI alert system trained on ECG tests.

The details:

  • The AI was trained on over 450,000 ECG tests and survival data to predict a patient’s risk of death and alert physicians to those at high risk.

  • In the trial, the AI alerted physicians when a patient’s ECG indicated they were in the top 5% risk category.

  • The AI intervention reduced overall deaths by 31% and deaths from heart issues by over 90% for high-risk patients.

Why it matters: This trial showcases the potential of AI to save lives in healthcare settings — while working with physicians, not replacing them. AI alert systems like these will be standard in the future, providing more rapid, targeted care to those in need.


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OpenAI announced the official roll out of its ChatGPT memory feature to all Plus users, with Team, Enterprise, and GPT access coming at a later date.

Blaize secured $106M in funding to advance its edge AI computing solutions, with investors including Bess Ventures, Franklin Templeton, and Mercedes Benz.

The Financial Times and OpenAI inked a new partnership to allow for AI training on the media outlet’s content while also developing new AI-driven features for readers.

Baidu reportedly finalized a deal to bring Tesla’s Full Self Driving system to China, with Tesla also gaining access to the company’s Chinese mapping data.

A new report shows that AI language trends, such as overused words and phrases, are heavily influenced by training inputs from outsourced labor in African countries.

NIST launched NIST GenAI, a new platform to evaluate and develop AI tech for the U.S. government as part of President Biden’s AI Executive Order.



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