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MiMo-V2-Pro

Xiaomi · 2026-03-18

MiMo-V2-Pro was Xiaomi's closed flagship foundation model for real-world agentic workloads, released through the Xiaomi MiMo API on March 18, 2026. Xiaomi described it as having over 1T total parameters with 42B active, hybrid attention using one global-attention layer per seven sliding-window layers, support for up to a 1M-token context, and a lightweight multi-token-prediction layer; SFT and RL across diverse agent scaffolds targeted tool use and multi-step reasoning. The `mimo-v2-pro` API name began auto-routing to `mimo-v2.5-pro` on June 1 and was deprecated on June 30, 2026.

Benchmark scores

BenchmarkScore
AA-LCR60.7
AA-Omniscience Index4.9
ALE-Bench1347
Arena Code WebDev — Brand & Marketing1430
Arena Code WebDev — Consumer Product1443
Arena Code WebDev — Content Creation Tools1430
Arena Code WebDev — Data & Analytics1433
Arena Code WebDev — Gaming1436
Arena Code WebDev — HTML1440
Arena Code WebDev — React1425
Arena Code WebDev — Reference-Based Design1443
Arena Code WebDev — Simulations1434
Arena Text — Business, Management & Financial Ops (No Style Control)1440
Arena Text — Chinese (No Style Control)1455
Arena Text — Creative Writing (No Style Control)1416
Arena Text — English (No Style Control)1454
Arena Text — Entertainment, Sports & Media (No Style Control)1415
Arena Text — Exclude Ties (No Style Control)1430
Arena Text — Exclude Ties (Style Controlled)1449
Arena Text — Expert (No Style Control)1479
Arena Text — French (No Style Control)1468
Arena Text — French (Style Controlled)1480
Arena Text — German (No Style Control)1419
Arena Text — Hard Prompts (No Style Control)1458
Arena Text — Hard Prompts English (No Style Control)1473
Arena Text — Instruction Following (No Style Control)1444
Arena Text — Japanese (No Style Control)1376
Arena Text — Korean (No Style Control)1398
Arena Text — Legal & Government (No Style Control)1447
Arena Text — Life, Physical & Social Science (No Style Control)1458
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