1-bit Bonsai is a 2-billion-parameter vision-language model using true 1-bit weights, optimized for Qualcomm Snapdragon AR1 Gen 1 smart glasses. It fits 4× more parameters in the same memory footprint as 4-bit models, delivering equivalent intelligence with ~4× less memory and more than 2× token generation speed for on-device, real-time visual understanding and language responses while preserving privacy.