We present Position Interpolation (PI) that extends the context window sizes of RoPE-based (Su et al., 2021) pretrained LLMs such as LLaMA (Touvron et al., 2023) models to up to 32768 with minimal fine-tuning (within 1000 steps), while demonstrating strong empirical results on various tasks that require long context, including passkey retrieval, language modeling, and long document summarization from LLaMA 7B to 65B.