American AI researchFounded 2026

Building openfoundation modelsfor everyone.

An American lab building a real open-source competitor at the AI frontier.

USAEX / 2026

Open weights are American infrastructure.

Exionos was founded around the same central premise advanced in the NVIDIA-hosted statement Open Weights and American AI Leadership: the United States needs a strong open ecosystem that reaches every sector.

01Access

Advanced models that organizations can run, inspect, and adapt.

02Competition

A plural ecosystem across models, chips, clouds, tools, and applications.

03Control

The ability to own deployment choices, data practices, and accumulated knowledge.

04Security

More researchers able to evaluate behavior, find failures, and improve safeguards.

America needs an
open frontier lab.

As leading open systems emerge from China, Exionos is building an American alternative with frontier ambition.

Why we exist
Flag of the United States with fifty stars and thirteen stripes
United StatesFifty states / Thirteen stripes
DEVELOPMENT PROGRAM / 2026INTERNAL
0PUBLIC CHECKPOINTS
Weights access
Restricted
Current phase
Research
Release gate
Not evaluated
Public API
Unavailable

No public models yet.

We are training in private. The first release will happen only when the evidence earns it.

Follow the program

Build the evidence before the claim.

Our initial agenda centers on efficient training, reliable reasoning, and model safety. Nothing is presented as a completed result until it has a public record.

View the research agenda

Start with our introduction.

News page
01Company

Introducing Exionos

Why we are building an independent lab for frontier AI research and open foundation models.

Open when ready.

Frontier from the start.