AI product Open source
An open-source interpretability tool for Qwen3.5-4B. It pushes each MLP neuron in a layer up and down across selected prompts, retains the resulting rollouts, and presents them in a three-dimensional model view. The explorer includes steer and logit lenses, neuron rankings based on word-cluster mass against random-direction controls, activation-based search, steered chat, neuron connections, and UMAP views of rollout embeddings. It can load Qwen3.5-4B locally on MPS, CUDA, or CPU, and includes sweep scripts for collecting activation statistics, steering runs, token log probabilities, lens data, depth reports, and neuron connections. Its optional Claude panel uses the explorer as an MCP server for inspecting neurons and running steering, activation, ablation, and inference tools.
1 use taken from transcripts — each links to the moment in the video.
An interpretability tool for the Quen 354B model that visualizes neurons on a 3D map and ranks them based on which words they tend to push the text toward.
1 in the library.