Goodfire Raises $150M in Series B Funding

The AI lab will build a model-design environment and expand partnerships in scientific discovery and AI agents.

Round size
$150M
Stage
Series B
Headquarters
United States
Announced
Feb 5, 2026

Understanding what a model has learned

Goodfire studies representations inside trained models rather than relying only on their outputs. It has applied this approach to an epigenetic model built by Prima Mente, identifying a class of potential Alzheimer’s biomarkers.

Turning interpretability into development tools

The planned environment will help users locate the internal components responsible for a behavior and target them for training or intervention. The Series B also funds foundational research and new scientific collaborators.

Sources

  1. Goodfire: funding announcement
  2. Crunchbase News: Series B financing
03 / Related rounds

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