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Polymath

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Simulation environments to train & evaluate long-horizon AI agents

W26·Winter 2026·B2B·San Francisco, CA, USA·Team of 2·Founded 2026

About

We’re heading towards a future where AI agents will be able to perform useful work over long horizons, with little or no human supervision. To increase the reliability, performance, and safety of autonomous agents, they must be trained in simulation environments that reflect the real world. Polymath builds simulated worlds for agents to practice and learn through experience. We're a team of researchers and engineers from UC Berkeley, Hume AI, Plaid, and Amazon. We have years of experience post-training frontier models in industry, and building large scale data systems. Polymath is backed by Y Combinator.

Founders

  • Dylan Ma· Founder

    Co-Founder / CEO @ Polymath. Previously @ Hume AI, AWS, UC Berkeley

  • Naren Yenuganti· Founder

    Co-Founder / CTO @ Polymath. Previously @ Plaid, Amazon, UC Berkeley

Product launches · 1 launch

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