399B
Arcee AI is a US startup founded in 2023 by former Hugging Face and Roboflow staff. It is known for model merging tools such as MergeKit and for its Trinity family of open-weight language models.
- Founded
- 2023
- Type
- Private company
- Founders
- Mark McQuade, Jacob Solawetz and Brian Benedict
- AI lab
- Inference provider
- 1 hosted endpoint
Model family
Trinity
Arcee AI is a US startup founded in 2023 by former Hugging Face and Roboflow staff. It is known for model merging tools such as MergeKit and for its Trinity family of open-weight language models.
Latest Trinity models
Models in this family
3 catalogued models
3 models · 1–3
| Select models to compare | Model | Released | Context | Input /M | Output /M | Parameters | Type | I/O | Openness |
|---|---|---|---|---|---|---|---|---|---|
| Trinity Large PreviewArcee AI | January 27, 2026 | 524K | — | — | 399B | Text | text → text | Open weights | |
| Trinity MiniArcee AI | December 1, 2025 | 131K | — | — | 26.1B | Text | text → text | Open weights | |
| Trinity Nano PreviewArcee AI | December 1, 2025 | 131K | — | — | 6.1B | Text | text → text | Open weights |