neuron-finder
Find the MLP neuron that makes a chat model become something, in minutes on one GPU.
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GITHUB · launched Oct 27, 2026 · 11 upvotes (top 92%)
- Horizontal
- Observability & eval
- Developer
- AI-native
- Hobby / open-source project
Similar launches
See all 888 similar launches →Could you build this?
Partial The interface and pipeline are easy to vibe-code, but the core capability of locating a behavior-driving MLP neuron is interpretability research rather than a known API call.
What it would actually take: Use an existing stack such as PyTorch with TransformerLens or nnsight to hook MLP activations on a local open-weight model, then run activation patching, attribution, or ablation sweeps to rank neurons. The hard part is choosing a method that gives meaningful, reproducible results rather than noise, which needs mechanistic-interpretability expertise. It also needs a GPU with enough VRAM for the chosen model.
Competitors
Other products that read as similar to this one : 888 launches clear the similarity bar, closest 8 shown.
Attention rank: #825 of 889 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 362 days after the earliest competitor.
- Button is the fastest way to chat with AI · yc · 2026-03-03 · 13 upvotes · similarity 0.54
- werm · github · 2026-10-06 · 204 upvotes · similarity 0.54
- gguf-neuron-explorer · github · 2026-10-26 · 82 upvotes · similarity 0.53
- neuron-explorer · github · 2026-10-21 · 310 upvotes · similarity 0.52
- ml-refusal-neurons · github · 2026-09-15 · 8 upvotes · similarity 0.51
- Nessie: Perplexity for Your Mind · yc · 2025-11-06 · 34 upvotes · similarity 0.50
- jo 1.0 - a personal AI that actually knows you · yc · 2026-03-01 · 90 upvotes · similarity 0.50
- flm · github · 2026-09-11 · 72 upvotes · similarity 0.50
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