LLM Reference

AFM Models by Arcee AI

Arcee AIApache 2.0
1 model2025Up to 66k ctx

About

Arcee AI's dense foundation model family. Served as the proof-of-concept series (trained on 8T tokens) before the Trinity sparse MoE family. Open-source under Apache 2.0.

Current Variants

Use-when guidance is derived from seed capabilities, context, release, and replacement fields.

1 in view
AFM 4.5BCurrent

Use when the workload needs 66k context and 4.5B parameters.

2025-0766k context4.5B parameters

Release Timeline

1 release group
2025-07
1 current
AFM 4.5B
66k context4.5B parameters
Current

Specifications(1 models)

AFM model specifications comparison
ModelReleasedContextParameters
AFM 4.5B2025-0766k4.5B

Frequently Asked Questions

What is AFM used for?
Arcee AI's dense foundation model family.
How does AFM compare to Arcee Maestro?
AFM by Arcee AI is strongest where you need its listed use cases, while Arcee Maestro by Arcee AI is the closest related family to check for reasoning. AFM has 1 listed variant and reaches up to 66k context, while Arcee Maestro reaches up to 128k context, so compare the specs and pricing tables before choosing a production model.
Which AFM model should I use?
If price is the main constraint, use the pricing table first because AFM does not have complete provider pricing in the local data. For the most capable/latest local choice, evaluate AFM 4.5B with 66k context.

Models(1)