In Depth
Llama (Large Language Model Meta AI) is Meta's series of open-weight language models, starting with Llama 1 in February 2023 and continuing through Llama 2, 3, and beyond. By releasing model weights publicly, Meta enabled a massive wave of innovation in the open-source AI community, allowing researchers and companies to fine-tune and deploy these models without depending on API providers.
The Llama family spans multiple sizes, from compact models suitable for edge devices to large models rivaling proprietary systems. Llama 2 introduced commercial licensing, and Llama 3 pushed open-weight models to near-frontier performance levels. The models have become the foundation for countless fine-tuned variants, including code-specialized, chat-optimized, and domain-specific versions.
For businesses, Llama offers a compelling alternative to API-based models because it can be self-hosted, giving organizations full control over their data and costs. Combined with techniques like LoRA fine-tuning and quantization, Llama models can be adapted to specific use cases and run efficiently on modest hardware, making enterprise AI more accessible.