Goodfire, a leading AI interpretability research company, announced a $50 million Series A funding round led by Menlo Ventures with participation from Lightspeed Venture Partners, Anthropic, B Capital, Work-Bench, Wing, South Park Commons, and other investors.
This funding round, which comes less than one year after its founding, will support the expansion of Goodfire’s research initiatives and the development of the company’s flagship interpretability platform Ember in partnership with customers.
Despite major advances in AI, even leading researchers have little idea of how neural networks truly function. And this knowledge gap makes neural networks difficult to engineer, prone to unpredictable failures, and increasingly risky to deploy as these powerful systems become harder to guide and understand.
To address these issues, Goodfire is investing significantly in mechanistic interpretability research – the relatively nascent science of reverse engineering neural networks and translating those insights into a universal, model-agnostic platform.
Known as Ember, Goodfire’s platform decodes the neurons inside an AI model to give direct, programmable access to its internal thoughts. And by moving beyond black-box inputs and outputs, Ember unlocks entirely new ways to apply, train, and align AI models — allowing users to discover new knowledge hidden in their model, precisely shape its behaviors, and improve its performance.
Goodfire is now advancing its interpretability research through targeted initiatives with frontier model developers. By closely partnering with industry innovators, Goodfire will rapidly enhance and solidify the application of interpretability research.
The company also plans to release more research previews, highlighting state-of-the-art interpretability techniques across diverse fields such as image processing, advanced reasoning language models, and scientific modeling. And these efforts promise to reveal new scientific insights and fundamentally reshape our understanding of how we can interact with and utilize AI models.
KEY QUOTES:
“AI models are notoriously nondeterministic black boxes. Goodfire’s world-class team—drawn from OpenAI and Google DeepMind—is cracking open that box to help enterprises truly understand, guide, and control their AI systems.”
- Deedy Das, investor at Menlo Ventures
“Nobody understands the mechanisms by which AI models fail, so no one knows how to fix them. Our vision is to build tools to make neural networks easy to understand, design, and fix from the inside out. This technology is critical for building the next frontier of safe and powerful foundation models.”
- Eric Ho, co-founder and CEO of Goodfire
“As AI capabilities advance, our ability to understand these systems must keep pace. Our investment in Goodfire reflects our belief that mechanistic interpretability is among the best bets to help us transform black-box neural networks into understandable, steerable systems—a critical foundation for the responsible development of powerful AI.”
- Dario Amodei, CEO and Co-Founder of Anthropic
“Partnering with Goodfire has been instrumental in unlocking deeper insights from Evo 2, our DNA foundation model. Their interpretability tools have enabled us to extract novel biological concepts that are accelerating our scientific discovery process.”
- Patrick Hsu, co-founder of Arc Institute – one of Goodfire’s earliest collaborators
