Trinity Large Thinking:

Trinity Large Thinking: Available on OpenRouter.

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Building Open Intelligence

Open models from an American research lab.

AI works best when people can build on it freely. Arcee develops open-weight models in the U.S. and releases them for everyone.

Genesis-Science-1

Company

Genesis-Science-1

Why we made Hugging Face the home for everything we build

Partnerships

Why we made Hugging Face the home for everything we build

Introducing the Trinity Builders Program

Company

Introducing the Trinity Builders Program

Open by design.

Meet Trinity, an open-weight model family that runs anywhere.

  • Trinity Large Thinking

    Frontier reasoning for your hardest problems.

  • Trinity Mini

    Your everyday workhorse with balanced performance and speed.

  • Trinity Nano

    Ultra-lightweight and fast enough to run on-device.

See Models
Trinity is moving to OpenMDW-1.1

Product

Trinity is moving to OpenMDW-1.1

How to Use Hermes Agent with Trinity Large Thinking

Agentic AI

How to Use Hermes Agent with Trinity Large Thinking

Announcing Genesis-Science-1: An Open-Weight Model for Scientific Research

Arcee, a US open source AI lab, says Chinese models are not inherently dangerous
LatestPress

Arcee, a US open source AI lab, says Chinese models are not inherently dangerous

techcrunch.com

Read More
Cisco highlights Arcee’s edge AIPressblogs.cisco.com
I can’t help rooting for tiny open source AI model maker ArceePresstechcrunch.com
Arcee's U.S.-made, open source Trinity Large and 10T-checkpoint offer rare look at raw model intelligencePressventurebeat.com

Everything you need to start building.

Ship on our API or download the models and run them yourself. Every model is open-weight, so you can inspect, fine-tune, and go to production on your terms.

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