Model family

Trinity

Trinity is a model family from Arcee AI1, with 2 assessed releases in this catalog. Licenses and availability are recorded for each release, not for the family; its releases use the OpenMDW License Agreement, version 1.1.

Trinity is Arcee AI's family of sparse mixture-of-experts language models: Trinity Nano (6B total, about 1B active parameters), Trinity Mini (26B total, 3B active), and Trinity Large (about 398B total, 13B active). Trinity Large is published as base, pre-anneal base, preview, and reasoning-tuned Thinking checkpoints.1 3 4

Website: Trinity overview (external site: arcee.ai)
Model hub: Arcee AI on Hugging Face (external site: huggingface.co)
Paper: Arcee Trinity Large Technical Report (external site: arxiv.org)

Last reviewedSep 29, 2026Entry updated Sep 29, 2026Documented release Dec 1, 2025

Releases assessed

Each release is assessed on its own. This family has no family-wide openness label.

Releases in the Trinity family
Release	Weights	Tier (USASI rubric v0.2)	License	Released
Trinity Mini	Weights: Public	Model-disclosure tier (USASI rubric v0.2): Open-weight	OpenMDW License Agreement, version 1.1	Dec 1, 2025
Trinity-Large-Thinking	Weights: Public	Model-disclosure tier (USASI rubric v0.2): Open-weight	OpenMDW License Agreement, version 1.1	Apr 1, 2026

What it is useful for

Arcee positions Nano for edge and on-device use and Mini for cloud or on-premises deployment, and lists the Large models as offered through its cloud API, with Trinity-Large-Thinking aimed at tool-calling and multi-step agent workflows.1 4

Organization context

Arcee AI

In the news

Dated, sourced updates in this catalog's news that mention this entry.

Jul 22, 2026 · Research
Arcee AI announces Genesis-Science-1, an open science model being built with the Department of Energy
Arcee AI wrote on July 22, 2026 that it and the U.S. Department of Energy had announced the development of Genesis-Science-1 (GS1), describing it as an open model for scientific research built with DOE and its national laboratories through the Genesis Mission. Arcee says GS1 is built on its next generation of Trinity models and will be a trillion-parameter-class language model. The weights have not been released: Arcee says GS1 will be released openly later in the year with the weights, a technical report, and public demonstrations. The post does not state a license.
- Arcee AI
- Trinity

U.S. eligibility

Project eligibility rests on documented governing or maintaining entities, not on contributors.

Eligible · basis: U.S. headquarters

Developed and published by Arcee AI, Inc., a U.S. company with a documented San Francisco base (see the arcee-ai record). Arcee describes Trinity as trained end to end in the United States by an American company.2 1

Assessed Sep 29, 2026

Sources

1.
Trinity Models (external site: arcee.ai)
Arcee AI · Official page · accessed Sep 29, 2026
2.
The Trinity Manifesto (external site: arcee.ai)
Arcee AI · Announcement · published Dec 1, 2025 · accessed Sep 29, 2026
3.
Arcee Trinity Large Technical Report (external site: arxiv.org)
arXiv · Paper · published Feb 19, 2026 · accessed Sep 29, 2026
4.
arcee-ai/Trinity-Large-Thinking model card (external site: huggingface.co)
Arcee AI · Model card · accessed Sep 29, 2026

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APA style

USASI. (2026, September 29). Trinity. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/open/trinity/

BibTeX

@misc{usasi_trinity,
  author = {{USASI}},
  title = {Trinity},
  year = {2026},
  month = sep,
  howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/open/trinity/}},
  note = {United States of America Superintelligence. Last updated 2026-09-29}
}

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Releases assessed

What it is useful for

Organization context

In the news

Arcee AI announces Genesis-Science-1, an open science model being built with the Department of Energy

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U.S. eligibility

Sources

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