MiniMax-M3 Arrives as a Cost-Crushing AI Model That Rivals GPT-5.5 and Gemini 3.1 Pro Chinese AI startup MiniMax has launched its M3 large language model, and the benchmark numbers are turning heads: frontier-level performance at roughly 5 to 10 percent of what leading U.S. models char... AI Models Enterprise AI LLM MiniMax Open Source AI Jun 1, 2026