Goodfire Reaches $1.25B Valuation as AI Interpretability Startup Pivots Toward Model Training Integration

Summary

Goodfire, an AI interpretability startup, has reached a $1.25 billion valuation as of February 2026. The company develops mechanistic interpretability tools, including its Ember API, designed to make neural network internals more transparent and steerable. The startup's core work sits at the intersection of AI safety and practical model control. Goodfire has pivoted its strategy toward what it calls "intentional design" — using interpretability techniques directly in the model training process