AFM-4.5B is a 4.5 billion parameter instruction-tuned language model developed by Arcee AI. The model was pretrained on approximately 8 trillion tokens, including 6.5 trillion tokens of general data and 1.5 trillion tokens with an emphasis on mathematical reasoning and code generation.
Modalities
Context
66K
Released
Sep 16, 2025
Knowledge Cutoff
Mar 2025
Token volume and request traffic to this model over time.
AFM-4.5B is a 4.5 billion parameter instruction-tuned language model developed by Arcee AI. The model was pretrained on approximately 8 trillion tokens, including 6.5 trillion tokens of general data and 1.5 trillion tokens with an emphasis on mathematical reasoning and code generation.
AFM 4.5B has a 65,536 token context window.
Trinity Large Thinking and Virtuoso Large are other text models from Arcee AI.
AFM 4.5B was released on September 16, 2025. Its knowledge cutoff is March 31, 2025.