Overview

Proximal builds simulation-based training environments that enable AI models to learn software engineering tasks through experience, not static data. By creating realistic, complex simulations of real-world engineering challenges, Proximal helps frontier labs and enterprises train next-generation coding agents capable of superhuman performance. The team—alumni of OpenAI, Cursor, and Prime Intellect—develops distributed systems that power thousands of concurrent simulations and AI copilots that accelerate environment creation. Backed by top-tier investors from OpenAI, Anthropic, xAI, and Thinking Machines, Proximal is pioneering the future of reinforcement learning for software engineering.