Tensil.ai is focused on democratizing accelerators through open source FPGA flow. They automatically generate optimized accelerators for various applications, including machine learning, cryptography, and digital signal processing. The company aims to address the challenge of expensive and slow accelerator adoption by providing open-source solutions. Tensil.ai has established partnerships with Xilinx/AMD and Lattice Semi, leveraging the expertise of its team and Y Combinator backing.