Find Models and Data
Neuronpedia has data for many models, including Gemma, Llama, Qwen, GPT-2, GPT-OSS, DeepSeek, and Pythia. There are many ways to find what you want.
Home Page
The home page shows the newest tools and releases. Click a card to start.
Top Menu
- Releases - A list of all releases. Example: Gemma Scope 2.
- Jump To - Go to a model or a feature by ID, or open a random feature.
- Search - Search Explanations, Search via Inference, and Search TopK by Token.
- Steer - The steering tool.
- Exports - Download data.
- API - The API reference.
Release Pages
A release page shows the source sets in the release, with links to the paper, the code, and the weights. Some large releases (like Gemma Scope and Gemma Scope 2) also have an interactive demo.
Model Pages
A model page (neuronpedia.org/[MODEL_ID]) shows all the releases for that model, an Attention Visualizer, and search tools.
Source Pages
A source page (neuronpedia.org/[MODEL_ID]/[SOURCE_ID]) shows the configuration of one SAE or transcoder: its HuggingFace path, number of features, hook, architecture, and the dataset that we used for its dashboards. Click How To Load to see code that loads it with SAELens.
Some source pages also show:
- A UMAP map of its features. Each point is a feature. Search the map, or click a point to open the feature.
- SAE evaluations from SAEBench.
- Search TopK by Token, and a similarity matrix for temporal SAEs.
Available Resources
The Available Resources page lists every public model and source. It also shows which sources have inference enabled. You can steer, search via inference, and test custom text only on sources with inference enabled. Click Request to ask us to enable inference for a source.
