MiniMax M3 open weights due mid-June after 1M-context launch

MiniMax M3 (1M context, 59% SWE-Bench Pro, claims topping GPT-5.5 and Gemini 3.1 Pro) promised open weights and a tech report ~10 days after its 1 Jun launch, putting a self-hostable drop around mid-June. Benchmarks remain vendor-reported.