Model comparison

MiMo-V2-Omni vs Olmo 3.1 32b Instruct

MiMo-V2-Omni is the stronger model overall, scoring 43.6 to 39.4 on the Noometry Index.

Last verified . 16 shared benchmarks.

MiMo-V2-Omni Xiaomi

43.6

Rank #88 Confirmed

Summary

  • They share 16 benchmarks with published results for both. MiMo-V2-Omni scores higher in 8 categories and Olmo 3.1 32b Instruct in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where MiMo-V2-Omni leads 61.4 to 50.2.
  • Olmo 3.1 32b Instruct has downloadable open weights; the other is API-only.

Side by side

MiMo-V2-Omni and Olmo 3.1 32b Instruct specifications
MiMo-V2-OmniOlmo 3.1 32b Instruct
ProviderXiaomiAllen Institute for AI (Ai2)
Noometry Index43.639.4
Released2026-03-18—
WeightsProprietaryOpen
Context window262K—
Max output131K—
Input $ / M tokens$0.14—
Output $ / M tokens$0.28—
Results tracked1816

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Category by category

Coding MiMo-V2-Omni leads

MiMo-V2-Omni: 43.3 (#89), Olmo 3.1 32b Instruct: 39.5 (#157)

Coding benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Coding14661347

Reasoning MiMo-V2-Omni leads

MiMo-V2-Omni: 29.7 (#88), Olmo 3.1 32b Instruct: 26.4 (#132)

Reasoning benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Hard Prompts14451322

Math MiMo-V2-Omni leads

MiMo-V2-Omni: 39.1 (#115), Olmo 3.1 32b Instruct: 36.3 (#167)

Math benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Math14301305

Knowledge MiMo-V2-Omni leads

MiMo-V2-Omni: 40.5 (#118), Olmo 3.1 32b Instruct: 36.1 (#175)

Knowledge benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Expert14491308

Multimodal Not comparable

MiMo-V2-Omni: 38.6 (#63), Olmo 3.1 32b Instruct: —

Multimodal benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Vision1228—

Multilingual MiMo-V2-Omni leads

MiMo-V2-Omni: 51.8 (#102), Olmo 3.1 32b Instruct: 42.6 (#191)

Multilingual benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Non-English14041275
LMArena Chinese14651304
LMArena French14471328
LMArena German13991282
LMArena Korean13551206
LMArena Russian14121268
LMArena Spanish14341336
LMArena Japanese1317—

Instruction Following MiMo-V2-Omni leads

MiMo-V2-Omni: 75.2 (#66), Olmo 3.1 32b Instruct: 68.6 (#187)

Instruction Following benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Instruction Following14281299

Long Context MiMo-V2-Omni leads

MiMo-V2-Omni: 44.1 (#76), Olmo 3.1 32b Instruct: 39.9 (#166)

Long Context benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Longer Query14421312

Writing & Preference MiMo-V2-Omni leads

MiMo-V2-Omni: 61.4 (#87), Olmo 3.1 32b Instruct: 50.2 (#185)

Writing & Preference benchmarks
BenchmarkMiMo-V2-OmniOlmo 3.1 32b Instruct
LMArena Text14231311
LMArena Creative Writing13921264
LMArena Multi-Turn14451309

Frequently asked questions

Is MiMo-V2-Omni better than Olmo 3.1 32b Instruct?

MiMo-V2-Omni is the stronger model overall, scoring 43.6 to 39.4 on the Noometry Index.

Is MiMo-V2-Omni or Olmo 3.1 32b Instruct better for coding?

MiMo-V2-Omni scores higher on coding benchmarks: 43.3 versus 39.5 in the Noometry coding category.

How many benchmarks do MiMo-V2-Omni and Olmo 3.1 32b Instruct share?

16 benchmarks have published results for both models. MiMo-V2-Omni has 18 scored results on Noometry and Olmo 3.1 32b Instruct has 16.

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