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Arcee.ai, a startup focused on developing small AI models for commercial and enterprise use, is opening up its own AFM-4.5B model for limited free usage by small companies — posting the weights on Hugging Face and allowing enterprises that make less than $1.75 million in annual revenue to use it without charge under a custom “Acree Model License.“
Designed for real-world enterprise use, the 4.5-billion-parameter model — much smaller than the tens of billions to trillions of leading frontier models — combines cost efficiency, regulatory compliance, and strong performance in a compact footprint.
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AFM-4.5B was one of a two part release made by Acree last month, and is already “instruction tuned,” or an “instruct” model, which is designed for chat, retrieval, and creative writing and can be deployed immediately for these use cases in enterprises. Another base model was also released at the time that was not instruction tuned, only pre-trained, allowing more customizability by customers. However, both were only available through commercial licensing terms — until now.







