MiMo-V2.6-Pro is Xiaomi's 1.02-trillion-parameter open-weights flagship, released 2026-09-21 and open-sourced on 2026-09-22 under MIT, with native text, image, video and audio input and a 1M-token context window. It scores 5.8 / 10 on the U365 CI-First Review, in the CI-First Positive band: an independent measurement puts it at $0.13 per Intelligence Index task against $1.06 for GPT-6 Sol, while its knowledge accuracy of 34.8 percent makes it a reasoning and coding model rath