Llama 2 vs Gopher

Llama 2

Meta's open-source LLM fine-tuned for chat and research

Llama 2 is Meta's second-generation open-source large language model, available in 7B, 13B, and 70B parameter sizes, with both pretrained and fine-tuned chat variants. Unlike the original LLaMA, Llama 2 is released for both research and commercial use under a permissive license. The chat-optimized versions use RLHF alignment and are competitive with many proprietary models on reasoning and dialogue benchmarks.

Gopher

DeepMind's 280B parameter language model for research

Gopher is a 280-billion parameter large language model developed by DeepMind, designed to advance understanding of language model capabilities and limitations at scale. It was evaluated across 152 diverse tasks and demonstrated strong performance in reading comprehension, fact-checking, and knowledge-intensive domains. Released as a research model, it also included a companion paper on ethical considerations and societal impact.