machine learning machine learning deployment MiniMax AI Releases MiniMax-M1: A 456B Parameter Hybrid Model for Long-Context and Reinforcement Learning RL Tasks – MarkTechPost Google Inc. June 19, 2025 June 19, 2025 MiniMax AI Releases MiniMax-M1: A 456B Parameter Hybrid Model for Long-Context and Reinforcement Learning RL Tasks MarkTechPost