Llama (Meta AI)

Meta's Llama 3.1 405B, released under a permissive commercial license in July 2024, achieved over 350 million downloads, making it the most downloaded open-weight AI model in history. It enabled thousands of companies to fine-tune and deploy frontier-quality AI without API fees, democratizing access that previously required tens of millions in compute budget, and is 40% cheaper than the average proprietary AI model. Llama's performance on benchmark MMLU reached 86.4%, outperforming #3 React in cross-domain adoption rates by doubling enterprise deployments within six months. With a 2.5x speed improvement in inference tasks over the previous version, Llama reduced latency by 30ms compared to the runner-up open-source model.