Microsoft's latest Phi4 LLM with 14 billion parameters requires 11 GB of storage, making it unsuitable for Raspberry Pi.A cut-down version of the Phi4 model, Phi4-mini-reasoning, with 3.8 billion parameters and 3.2 GB can be added to a Raspberry Pi.The Phi4-mini-reasoning model uses four-bit quantization, affecting its performance on the Raspberry Pi.Using the model, a Raspberry Pi can answer questions like 'Alice has five brothers and three sisters, how many sisters does Alice's brother have?'