MiniMax M3 Guide: How to Use It, Best Prompts & Use Cases (2026) TL;DR: MiniMax M3 is the first open-weight AI model combining frontier coding, a 1-million-token context window, and native multimodal inputs — and it beats GPT-5.5 at just 5-10% of the cost. This MiniMax M3 guide covers everything you need to get started, use it effectively, and make money with it today. What Is MiniMax M3? (And Why Everyone's Talking About It) MiniMax M3 is a newly released open-weight large language model that dropped on June 1, 2026, and immediately broke the internet. Built by MiniMax AI, it is the first model of its kind to combine three capabilities that no single model had achieved together before: frontier-tier coding performance, a 1-million-token context window, and native multimodal understanding of text, images, and video. The viral moment came when benchmark results showed M3 scoring 59.0% on SWE-Bench Pro — outperforming both GPT-5.5 and Gemini 3.1 Pro on the same test. The kicker?…