Martian

Martian builds AI research tools and infrastructure focused on understanding machine intelligence. The team develops the Martian Gateway, a unified API for 200+ AI models, and ARES, an open-source RL-first framework for training and evaluating LLM agents. Martian makes internal research tools available externally as they experiment with new solutions. The company differentiates through deep research roots and a focus on agentic and coding AI systems.