Goodfire Launches Silico: Mechanistic Interpretability Platform for Debugging and Steering LLMs

Summary

Goodfire, the AI interpretability startup that raised $150M at a $1.25B valuation in February 2026, launched Silico — a commercial platform that automates mechanistic interpretability research previously requiring top-lab AI scientists. Silico lets developers peer inside trained LLMs, identify specific neurons driving particular behaviors, and make targeted adjustments to suppress or enhance those behaviors without full retraining. The platform uses AI agents to automate the interpretability res