Goodfire

Silico is Goodfire's new platform for inspecting, debugging, and intentionally designing AI models, aimed at researchers and engineers who train foundation models and want to understand what is happening inside them rather than treat them as black boxes. The company says its mission is to make building AI models less like alchemy and more like a science, addressing the fact that LLMs like ChatGPT and Gemini can do amazing things but nobody knows exactly how or why they work, which can make it hard to fix their flaws or block unwanted behaviors. The product lets users decompose a model into interpretable features and see when predictions are driven by real understanding of biology, reasoning, or the physical world, or by spurious correlations and dataset artifacts , then run comprehensive diagnostics on internal representations to identify problems like undertraining, information bottlenecks, feature collapse, and other pathologies before they impact downstream performance . The launch matters now because mechanistic interpretability has moved from research curiosity to practical tooling, with mechanistic interpretability named one of MIT Technology Review's 10 Breakthrough Technologies of 2026 . Silico extends Goodfire's earlier work on Ember, a hosted API for steering model features, into a full design environment that spans life sciences, robotics and vision, and LLMs , with early partners including Arc Institute, Mayo Clinic, Microsoft, Prima Mente, and Rakuten . The pitch to model builders is concrete: find where a model is actually failing, fix the underlying features, and generalize from less data. Goodfire is led by CEO Eric Ho, who previously founded RippleMatch, a Series B AI recruiting startup backed by Goldman Sachs , alongside cofounder Daniel Balsam and a team focused on mechanistic interpretability research. The company has raised funding to support its work to rethink training and build a "model design environment," a platform for understanding, debugging, and intentionally designing AI models at scale. Early access to Silico is open now through the Goodfire website.