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Trim

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A foundation model for physics.

Winter 2025Founded 20243 peopleSan Francisco, CA, USA

About

Trim is building a general intelligence AI model that can simulate real-world physical systems evolving over time.

From their website

trimresearch.com
API/Infra

Trim is building an AI foundation model designed to simulate real-world physical systems evolving over time. It aims to provide faster, more scalable physics simulations by leveraging a custom transformer architecture.

Trim trains models by running traditional physics simulations and feeding the results into its pipeline. The Trim Transformer uses a custom Galerkin-type attention mechanism, effectively acting as a constant-time lossy lookup table that scales linearly with respect to both dimensions and grid size, enabling lower latency for tasks like autonomous vehicle pathing and complex phenomena such as gravitational waves detection.

Who it’s for: Researchers and engineers who need fast, scalable physics simulations and modeling across domains such as robotics, autonomous systems, and scientific computing.

Features
  • linear-attention that scales with dimensions and grid size
  • constant-time lossy lookup table behavior
  • training from traditional physics simulations
  • Galerkin-type attention implementation
  • supports time-evolving physical systems
  • potentially enabling latency-sensitive and large-scale simulations

No explicit funding or hiring mentions in the provided text; references to architecture development and blog explanations implying ongoing R&D activity

Founders · 1

Emanuel Gordis
Emanuel GordisFounder
PrincetonCornell

Founder of Trim. NRC-licensed RO, published quantum physics with Princeton and astrophysics with LLNL. Cornell Alum.

Launch

Launched on Y Combinator · Jul 2025
View launch post ↗

AI to simulate real-world physical systems

Trim builds an AI model, the Trim Transformer, to simulate real-world physical systems evolving over time. It claims linear-attention enables faster, scalable simulations across high-dimensional grids, with applications including autonomous navigation, molecular modeling, climate modeling, financial modeling, fusion plasmas, and gravitational waves; the launch highlights improved memory efficiency and speed over standard transformers and invites users to explore on GitHub and their blog.

Formerly Nuclear Software Solutions, Nuclear Software, Trim, TRIM

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