Substrate

Substrate is a software infrastructure company that develops a platform for building and running multi-step AI workloads. The platform provides abstractions and components including optimized models, vector databases, and code interpreters, analyzing workloads as directed acyclic graphs and optimizing them for maximum parallelism. Substrate allows developers to build complex AI pipelines that chain multiple models and tools together, with built-in optimization for performance and cost efficiency. The platform handles the orchestration of multi-step AI processes, enabling applications that require reasoning, tool use, and iterative refinement to run efficiently in production environments. Founded in 2023 and headquartered in New York City, Substrate has raised $8 million in seed funding from investors including Lightspeed Venture Partners, South Park Commons, and Craft Ventures.