DeepSeek V2 Lite is the leaner sibling of DeepSeek V2, built around a Mixture-of-Experts architecture that activates only a fraction of its parameters per token — keeping inference costs low while punching above its weight on reasoning and coding tasks. It handles Chinese and English fluently, making it a practical choice for multilingual workflows. The trade-off is that, as a smaller model, it can struggle with highly complex multi-step reasoning where larger counterparts have more headroom.