Some of the most famous large language models include GPT-3 (Generative Pre-trained Transformer 3), BERT (Bidirectional Encoder Representations from Transformers), Roberta (Robustly Optimized BERT approach), and T5 (Text-to-Text Transfer Transformer). These models have significantly advanced natural language processing and have been widely adopted in various language tasks, such as text generation, classification, and language translation.