Noometry

Model comparison

Grok 4.3 vs MiMo-V2-Omni

Grok 4.3 and MiMo-V2-Omni score almost the same on the Noometry Index (43.8 vs 43.6), so choose on price, context window or the category you care about most.

Last verified . 18 shared benchmarks.

Grok 4.3 xAI

43.8

Rank #86 Confirmed

MiMo-V2-Omni Xiaomi

43.6

Rank #88 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Grok 4.3 scores higher in 3 categories and MiMo-V2-Omni in 6 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Grok 4.3 leads 52.5 to 40.5.
  • MiMo-V2-Omni is cheaper at $0.14 / $0.28 per million input/output tokens, against $1.25 / $2.50 for Grok 4.3.
  • Grok 4.3 accepts more context: 1M tokens versus 262K.

Side by side

Grok 4.3MiMo-V2-Omni
ProviderxAIXiaomi
Noometry Index43.843.6
Released2026-04-172026-03-18
WeightsProprietaryProprietary
Context window1M262K
Max output30K131K
Input $ / M tokens$1.25$0.14
Output $ / M tokens$2.50$0.28
Results tracked4018

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Category by category

Coding MiMo-V2-Omni leads

Grok 4.3: 41.6 (#121), MiMo-V2-Omni: 43.3 (#89)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Coding14151466
LMArena WebDev1357—
SciCode47.3%—
WeirdML49.9%—
ALE-Bench944.17—

Agentic & Tool Use Not comparable

Grok 4.3: 27.7 (#99), MiMo-V2-Omni: —

BenchmarkGrok 4.3MiMo-V2-Omni
GDP.pdf8%—
LMArena Search1165—
Vending-Bench 235.26—

Reasoning Grok 4.3 leads

Grok 4.3: 35.9 (#68), MiMo-V2-Omni: 29.7 (#88)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Hard Prompts13961445
NYT Connections (extended)55.2%—
CritPt8%—
Chess Puzzles25%—
DTBench90.7%—
LMCA38.3%—
Epoch Capabilities Index149.16—
ForecastBench60.3—

Math Grok 4.3 leads

Grok 4.3: 46.0 (#74), MiMo-V2-Omni: 39.1 (#115)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Math13881430
FrontierMath (Tiers 1-3)42.8%—
FrontierMath Tier 414.6%—
OTIS Mock AIME 2024-202593.3%—
ProofBench11%—

Knowledge Grok 4.3 leads

Grok 4.3: 52.5 (#62), MiMo-V2-Omni: 40.5 (#118)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Expert13851449
GPQA Diamond88.8%—
SimpleQA Verified33.2%—

Multimodal MiMo-V2-Omni leads

Grok 4.3: 31.6 (#104), MiMo-V2-Omni: 38.6 (#63)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Vision12291228
Blueprint-Bench 20%—

Multilingual MiMo-V2-Omni leads

Grok 4.3: 50.5 (#120), MiMo-V2-Omni: 51.8 (#102)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Non-English13851404
LMArena Chinese14221465
LMArena French14121447
LMArena German13951399
LMArena Japanese13791317
LMArena Korean13561355
LMArena Russian13991412
LMArena Spanish13981434

Instruction Following MiMo-V2-Omni leads

Grok 4.3: 72.1 (#140), MiMo-V2-Omni: 75.2 (#66)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Instruction Following13661428

Long Context MiMo-V2-Omni leads

Grok 4.3: 42.5 (#123), MiMo-V2-Omni: 44.1 (#76)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Longer Query13931442

Writing & Preference MiMo-V2-Omni leads

Grok 4.3: 58.5 (#118), MiMo-V2-Omni: 61.4 (#87)

BenchmarkGrok 4.3MiMo-V2-Omni
LMArena Text13971423
LMArena Creative Writing13801392
LMArena Multi-Turn14061445
EQ-Bench 41075—

Frequently asked questions

Is Grok 4.3 better than MiMo-V2-Omni?

Grok 4.3 and MiMo-V2-Omni score almost the same on the Noometry Index (43.8 vs 43.6), so choose on price, context window or the category you care about most.

Which is cheaper, Grok 4.3 or MiMo-V2-Omni?

MiMo-V2-Omni is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Grok 4.3 lists at $1.25 and $2.50.

Is Grok 4.3 or MiMo-V2-Omni better for coding?

MiMo-V2-Omni scores higher on coding benchmarks: 43.3 versus 41.6 in the Noometry coding category.

Which has the bigger context window?

Grok 4.3 does, with 1M tokens against 262K.

How many benchmarks do Grok 4.3 and MiMo-V2-Omni share?

18 benchmarks have published results for both models. Grok 4.3 has 40 scored results on Noometry and MiMo-V2-Omni has 18.

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