ModelArcee AIArcee AIpublished Dec 1, 2025seen 5d

arcee-ai/Trinity-Mini-Base

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published Dec 1, 2025seen 5dcaptured 11hhttp 200method plaintask text-generationlicense otherlibrary transformersparams 26Bdownloads 1.9klikes 22

Trinity Mini Base

Trinity Mini is an Arcee AI 26B MoE model with 3B active parameters. It is the medium-sized model in our new Trinity family, a series of open-weight models for enterprise and tinkerers alike.

This base model *pre* fine tuning, and so is not suitable for chatting, and should be trained for your specific domain before use.

Trinity Mini is trained on 10T tokens gathered and curated through a key partnership with Datology, building upon the excellent dataset we used on AFM-4.5B with additional math and code.

Training was performed on a cluster of 512 H200 GPUs powered by Prime Intellect using HSDP parallelism.

More details, including key architecture decisions, can be found on our blog here

Try it out the reasoning model now at chat.arcee.ai or download here: arcee-ai/Trinity-Mini

Model Details

  • Model Architecture: AfmoeForCausalLM
  • Parameters: 26B, 3B active
  • Experts: 128 total, 8 active, 1 shared
  • Context length: 128k
  • Training Tokens: 10T
  • License: OpenMDW-1.1

Benchmarks

General Benchmarks

| Benchmark | Score | |-----------|-------| | ARC-Challenge | 90.0% | | CommonsenseQA | 79.6% | | OpenBookQA | 89.0% | | Winogrande | 75.9% | | MMLU (5-shot) | 74.7% | | AGI Eval English | 61.8% | | BBH CoT (3-shot) | 54.2% | | MMLU Pro | 45.6% |

Math & Code Benchmarks

| Benchmark | Score | |-----------|-------| | GSM8K | 56.6% | | Minerva MATH 500 | 51.8% | | HumanEval+ | 57.3% | | MBPP+ | 55.3% |

Try out our reasoning tune

Trinity Mini is available today on openrouter:

https://openrouter.ai/arcee-ai/trinity-mini

curl -X POST "https://openrouter.ai/v1/chat/completions" \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "arcee-ai/trinity-mini",
"messages": [
{
"role": "user",
"content": "What are some fun things to do in New York?"
}
]
}'

License

Trinity-Mini-Base is released under the OpenMDW-1.1 license.

Notability

notability 5.0/10

Low traction base model release