Arcee Foundation Models
A new approach to enterprise AI

AFM‑4.5B is a new kind of SLM that is powerful, practical, and portable, built with the input of over 100 enterprises.

Built on secure, open architecture that adapts to you.

AFM‑4.5B is easily customizable, so you can tailor, deploy, and scale AI to your customer's needs. Post-training techniques pioneered by Arcee Research let you rapidly snap in retrieval, swap out workflows, and stay future-ready—without retraining or replatforming.

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Small by design, not by compromise

Precision-tuned for enterprise, AFM 4.5B outperforms models twice its size on key use cases – like retrieval and chatbots – at a fraction of the inference costs.

Adapts to your business in weeks, not months

Trained exclusively with clean, rigorously curated data on business use cases, AFM 4.5B is ready to quickly automate complex, domain-specific workflows.

Get real-time answers at the edge – even offline

Deploy in cloud, on your laptop or on premise on a single CPU. Operate offline and process on-device in real-time.

Designed Through Evolution and Experience

Unlock domain-specific AI that’s secure, efficient, and built for your business. Choose the tools and models that fit you.

Private deployment ready

Ensure complete data sovereignty, security, and control.

- Trained on rigorously filtered data in partnership with Datology
- Deploy on-device or VPC
- Transparent and flexible licensing

Right-sized performance

Get the power you need—no wasted resources. CPU-optimized for cost savings and speed.

- 3GB RAM minimum footprint
- 4.5 billion parameter transformer

Built for your business

Customize models for your industry. Train, merge, and adapt to your unique needs.

- Customized design and applications
- Designed to integrate into your systems
- Engineered to grow with you

Experience AFM

Test AFM-4.5B instantly below, on Together AI, or download at Hugging Face‍