Microgpt is a GPT you can visualize in the browser
very much inspired by karpathy's microgpt of the same name. it's (by default) a 4000 param GPT/LLM/NN that learns to generate names. this is sorta an educational tool in that you can visualize the activations as they pass through the network, and click on things to get an explanation of them.
Microgpt is a GPT you can visualize in the browser launched on February 15, 2026 with 282 votes, #89 of 16,627 launches that month and more than 99% of that year's launches.
In plain words
Microgpt is a browser-based educational tool that visualizes a small 4000-parameter neural network trained to generate names. Users can watch activations flow through the network in real time and click on components to understand how they work. Inspired by Karpathy's original MicroGPT, it makes the inner workings of language models transparent and interactive for learning purposes.
written from the facts on this page · September 2026
From the sources
a visualization of a very small gpt model, running in the browser
Does a similar job
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