- Sources: primary, benchmarks, discussion
- Summary: The XiaomiMiMo Hugging Face organization carries a MiMo-V2.6 collection last updated 2026-09-21 with three public ungated repositories modified 2026-09-22: MiMo-V2.6-Pro-RL at 524,121,348,864 parameters, MiMo-V2.6-Flash-RL at 159,358,725,504 parameters, and MiMo-V2.6-Distill-Qwen-9B at 9,409,813,744 parameters. Unlike the announced-but-withheld releases already tracked as an open follow-up, these weights are downloadable now, and the item was the day's highest-scoring Hacker News story at over 1,000 points. The announcement page at mimo.xiaomi.com is JavaScript-rendered and returned no body text to automated fetch, so architecture, training details, benchmark claims, and the license were not verified from the vendor post.
- Why it matters: The parameter counts are the verified facts and the license is the open question, because a 524B open-weight model is only usable in production if the terms allow it.
- Follow-up: The MiMo V2.6 license and any technical report, tracked alongside the existing follow-up on models announced with weights or license pending.
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