Xiaomi Open-Sources MiMo-V2.6 Family; Pro Tops Open-Weights Intelligence Index

On September 22, Xiaomi open-sourced the MiMo-V2.6 model family on Hugging Face, comprising the flagship MiMo-V2.6-Pro and the lightweight MiMo-V2.6-Flash, both built on a MoE architecture with native omni-modal support and released under the MIT license. The Pro version topped the Artificial Analysis Intelligence Index for open-weight models with a score of 46, a big jump from its predecessor MiMo-V2.5-Pro's 26, making it the open-source community's most talked-about event of the day.

Confirmed

• Two models released: MiMo-V2.6-Pro with 1.02T total parameters and 42B activated; MiMo-V2.6-Flash with 310B total parameters and 15B activated (cross-confirmed by multiple posts including @natolambert)
• The Pro version scored 46 on the Artificial Analysis Intelligence Index, the top-ranked open-weight model; the predecessor MiMo-V2.5-Pro scored 26 (@ArtificialAnlys)
• There is also an RL-trained MiMo-V2.6-Pro-RL variant, released alongside Flash with downloadable weights (@Bestlife73)
• The series is open-sourced under the MIT license (@victormustar)

Why it matters

• A phone maker's model topping a third-party intelligence index among open-weight models, and directly open-sourcing trillion-parameter-scale weights, has a real impact on the open-source landscape
• The score jumped from 26 to 46 between generations—a striking leap—and @victormustar said it set a new record for open models on the Intelligence Index

2026-09-22 ~ 2026-09-22 · 17 related posts

• [source] MiMo-V2.6 launches: 1.02T-param MoE claims top open model spot — natolambert · 2026-09-22
• MiMo-V2.6 launches: 1.02T-param open model tops Artificial Analysis open rankings — natolambert · 2026-09-22
• Xiaomi releases MiMo-V2.6-Pro-RL on Hugging Face — Bestlife73 · 2026-09-22
• Xiaomi releases MiMo-V2.6-Flash-RL on Hugging Face — Bestlife73 · 2026-09-22
• [source] Xiaomi's open-weights MiMo-V2.6-Pro tops Artificial Analysis index with 1T-param MoE at $0.13/task — ArtificialAnlys · 2026-09-22
• Xiaomi open-sources MiMo-V2.6 omni-modal models, topping open-model index at 46.32 — victormustar · 2026-09-22
• Xiaomi releases MiMo-V2.6-Flash-RL weights on Hugging Face — tokenbender · 2026-09-22
• Xiaomi ships MiMo-V2.6 with 1M context, scores just behind GPT-5.6 Sol — mervenoyann · 2026-09-22
• Xiaomi's open MiMo-V2.6 tops Artificial Analysis open-model index — pcuenq · 2026-09-22
• [source] Xiaomi open-sources MiMo-V2.6: MoE models with 1M context, MIT license — AdinaYakup · 2026-09-22
• MiMo-V2.6 lands on Hugging Face with Pro-RL, Flash-RL and 9B distill — AdinaYakup · 2026-09-22
• Xiaomi's MiMo-V2.6-Pro debuts as top open-weights model with ~$2.6m RL training bill — andersonbcdefg · 2026-09-22
• Xiaomi MiMo-V2.6 lands, jumping 153 pts to crack Code Arena top 10 among open weights — arena · 2026-09-22

4 near-duplicate retellings: _AndrewZhao · giffmana · MaziyarPanahi · huggingface