Pathway has completed a $30 million seed round as it pushes a biologically inspired dynamic hierarchical architecture, or BDH, that it describes as a post-Transformer approach to AI model design. The company said the round included Id4 Ventures, TQ Ventures, Red Bridge Ventures, Kadmos Capital and WS Investment, an investment vehicle under Wilson Sonsini, while Databricks Chief AI Scientist Jonathan Frankle joined as an angel investor. Pathway said BDH is designed to address limits in current Transformer models, which it characterized as still dependent on ever-larger amounts of data, GPU compute, energy and capital. Unlike traditional large models that require periodic retraining, the company said BDH can continuously learn and adapt with less data. Pathway also appointed former Google DeepMind Gemini product lead Adam Kurzrok as chief product officer to oversee the model's product direction, including packaging, evaluation systems and commercial deployment.