Open Source AI Communities Are Outpacing Big Tech on Speed, Cost, and Real Results The Numbers No Longer Favor Closed Labs Meta released Llama 3 405B in April 2024 with full weights available under a commercial license. Within six weeks the model reached 86.4 percent on MMLU, matching GPT-4 Turbo on several leaderboards while running on hardware that costs roughly one-third as much per token....