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MiMo-V2.6-Pro

Xiaomi · 2026-09-22

MiMo-V2.6-Pro is Xiaomi's September 2026 flagship omnimodal model, trained for coding, professional work, and long-running agents. Xiaomi serves it as mimo-v2.6-pro and publishes the MIT-licensed checkpoint as XiaomiMiMo/MiMo-V2.6-Pro-RL. Thinking can be enabled or disabled; UltraSpeed is a faster serving mode, and the published trillion-parameter architecture count is rounded. Architecture dimensions describe the 70-layer language backbone, separate from the vision/audio encoders and five-layer MTP decoder.

Benchmark scores

BenchmarkScore
AA-3D v1.0 Elo983
AA-AnalystAgent (pass@1)61.3
AA-AnalystAgent (pass@5)80.0
AA-AnalystAgent (pass^5)37.5
AA-Briefcase v1.1 Elo1511
AA-LCR v1.186.3
AA-Omniscience Index8.4
AA-Omniscience v1.1 Accuracy34.8
AA-Omniscience v1.1 Hallucination Rate60.2
AA-Omniscience v1.1 Index-4.5
Agents' Last Exam - release-reported pass rate, subset unspecified31.6
ALE-Bench1476
APEX-Agents 1.165.3
APEX-Agents 1.1 Pass@154.4
APEX-SWE54.2
Arena Alignment — Deceptive Completion18.3
Arena Alignment — False Attribution8.3
Arena Alignment — Unauthorized Action2.3
Arena Alignment Index74.5
Arena Code WebDev — Brand & Marketing1627
Arena Code WebDev — Consumer Product1567
Arena Code WebDev — Content Creation Tools1585
Arena Code WebDev — Data & Analytics1568
Arena Code WebDev — Frontend1637
Arena Code WebDev — Fullstack1631
Arena Code WebDev — Gaming1681
Arena Code WebDev — HTML1626
Arena Code WebDev — React1634
Arena Code WebDev — Reference-Based Design1644
Arena Code WebDev — Simulations1691
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