Will's Blog: AI interpretability startup Goodfire raised a $150M Series B at a $1.25B valuation, taking its total funding to $209M, and is working on retraining AI models (Rebecca Torrence/Bloomberg)

5 February 2026

AI interpretability startup Goodfire raised a $150M Series B at a $1.25B valuation, taking its total funding to $209M, and is working on retraining AI models (Rebecca Torrence/Bloomberg)

Rebecca Torrence / Bloomberg:
AI interpretability startup Goodfire raised a $150M Series B at a $1.25B valuation, taking its total funding to $209M, and is working on retraining AI models — A growing cadre of multibillion-dollar startups are racing to create the best artificial intelligence models …

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