Noometry

Model comparison

Gemini 3.1 Pro Preview vs MiMo-V2-Flash

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 41.3 on the Noometry Index. MiMo-V2-Flash costs 26× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Last verified . 21 shared benchmarks.

Gemini 3.1 Pro Preview Google

56.7

Rank #23 Confirmed

MiMo-V2-Flash Xiaomi

41.3

Rank #138 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 8 categories and MiMo-V2-Flash in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 24.9.
  • The biggest single-benchmark swing is SciCode: 58.9% for Gemini 3.1 Pro Preview and 25.9% for MiMo-V2-Flash.
  • MiMo-V2-Flash is cheaper at $0.14 / $0.28 per million input/output tokens, against $2 / $12 for Gemini 3.1 Pro Preview.
  • Gemini 3.1 Pro Preview accepts more context: 1.05M tokens versus 262K.
  • MiMo-V2-Flash has downloadable open weights; the other is API-only.

Side by side

Gemini 3.1 Pro PreviewMiMo-V2-Flash
ProviderGoogleXiaomi
Noometry Index56.741.3
Released2026-02-192025-12-16
WeightsProprietaryOpen
Context window1.05M262K
Max output66K66K
Input $ / M tokens$2$0.14
Output $ / M tokens$12$0.28
Results tracked7121

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 42.5 (#99), MiMo-V2-Flash: 36.1 (#211)

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
LMArena WebDev14471330
SciCode58.9%25.9%
LMArena Coding14841443
ALE-Bench1,161737.95
SWE-bench Verified75.6%—
DeepSWE11.7%—
GSO22.6%—
WeirdML72.1%—
MirrorCode8.9%—
AlgoTune2.02—

Agentic & Tool Use Not comparable

Gemini 3.1 Pro Preview: 37.7 (#34), MiMo-V2-Flash: —

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
Terminal-Bench80.2%—
APEX-Agents35.3%—
τ²-bench Banking26%—
DeepResearch Bench47.8%—
PostTrainBench22%—
BALROG57%—
ExploitBench26.1%—
GBAEval0.8%—
GDP.pdf17%—
LMArena Search1211—
METR Time Horizons77%—
Vending-Bench 23,774—

Reasoning Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.7 (#12), MiMo-V2-Flash: 24.9 (#157)

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
CritPt17.7%0%
LMArena Hard Prompts14851420
ARC-AGI-277.1%—
SimpleBench79.6%—
NYT Connections (extended)97.4%—
ARC-AGI-198%—
Chess Puzzles55%—
EnigmaEval36.8%—
Thematic Generalization79.4%—
EBR-Bench14.3%—
Mystery Game Puzzles34%—
DTBench97.1%—
LMCA53.8%—
Epoch Capabilities Index154.77—
ForecastBench59—

Math Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 62.1 (#34), MiMo-V2-Flash: 38.3 (#139)

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
LMArena Math14851396
FrontierMath (Tiers 1-3)59.6%—
FrontierMath Tier 426.8%—
MathArena Final-Answer Competitions86.5%—
OTIS Mock AIME 2024-202595.6%—
ProofBench26%—
FrontierMath (Feb 2025 set)36.9%—
FrontierMath Tier 4 (v1)16.7%—

Knowledge Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.8 (#3), MiMo-V2-Flash: 39.7 (#131)

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
LMArena Expert14851425
GPQA Diamond94.4%—
Humanity's Last Exam46.4%—
SimpleQA Verified73.5%—
Vectara Hallucination Rate10.4%—

Multimodal Not comparable

Gemini 3.1 Pro Preview: 37.9 (#69), MiMo-V2-Flash: —

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
LMArena Vision1296—
Blueprint-Bench 226.5%—
Furniture Assembly26.7%—
LMArena Document1444—

Multilingual Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 57.0 (#12), MiMo-V2-Flash: 51.0 (#113)

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
LMArena Non-English14771392
LMArena Chinese15291462
LMArena French14871429
LMArena German14911395
LMArena Japanese14931325
LMArena Korean14551358
LMArena Russian14981387
LMArena Spanish14791420

Instruction Following Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 77.0 (#32), MiMo-V2-Flash: 73.5 (#120)

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
LMArena Instruction Following14661392

Long Context Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 47.4 (#18), MiMo-V2-Flash: 43.0 (#110)

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
LMArena Longer Query14831409
CL-bench20.8%—
CL-bench Life16.9%—

Writing & Preference Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 66.1 (#37), MiMo-V2-Flash: 59.7 (#106)

BenchmarkGemini 3.1 Pro PreviewMiMo-V2-Flash
LMArena Text14811411
LMArena Creative Writing14821375
LMArena Multi-Turn14881404
EQ-Bench Creative Writing1491—
EQ-Bench 41142—

Frequently asked questions

Is Gemini 3.1 Pro Preview better than MiMo-V2-Flash?

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 41.3 on the Noometry Index. MiMo-V2-Flash costs 26× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.1 Pro Preview or MiMo-V2-Flash?

MiMo-V2-Flash is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Gemini 3.1 Pro Preview lists at $2 and $12.

Is Gemini 3.1 Pro Preview or MiMo-V2-Flash better for coding?

Gemini 3.1 Pro Preview scores higher on coding benchmarks: 42.5 versus 36.1 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.1 Pro Preview does, with 1.05M tokens against 262K.

How many benchmarks do Gemini 3.1 Pro Preview and MiMo-V2-Flash share?

21 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and MiMo-V2-Flash has 21.

Related comparisons

Go deeper