Noometry

Model comparison

MiMo-V2.6-Flash vs Step 3.5 Flash

MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 42.3 on the Noometry Index.

Last verified . 14 shared benchmarks.

MiMo-V2.6-Flash Xiaomi

48.5

Rank #55 Confirmed

Step 3.5 Flash StepFun

42.3

Rank #116 Confirmed

Summary

  • They share 14 benchmarks with published results for both. MiMo-V2.6-Flash scores higher in 8 categories and Step 3.5 Flash in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where MiMo-V2.6-Flash leads 36.5 to 22.2.
  • Step 3.5 Flash is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.14 / $0.28 for MiMo-V2.6-Flash.
  • MiMo-V2.6-Flash accepts more context: 1.05M tokens versus 256K.

Side by side

MiMo-V2.6-FlashStep 3.5 Flash
ProviderXiaomiStepFun
Noometry Index48.542.3
Released2026-09-212026-01-29
WeightsOpenOpen
Context window1.05M256K
Max output131K256K
Input $ / M tokens$0.14$0.10
Output $ / M tokens$0.28$0.30
Results tracked1919

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Category by category

Coding MiMo-V2.6-Flash leads

MiMo-V2.6-Flash: 53.4 (#30), Step 3.5 Flash: 42.4 (#105)

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Coding15041436
LMArena WebDev1637—
SciCode51.3%—

Reasoning MiMo-V2.6-Flash leads

MiMo-V2.6-Flash: 36.5 (#66), Step 3.5 Flash: 22.2 (#202)

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Hard Prompts14821411
NYT Connections (extended)—28.4%
CritPt12%—

Math MiMo-V2.6-Flash leads

MiMo-V2.6-Flash: 51.9 (#52), Step 3.5 Flash: 42.6 (#84)

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Math14681408
MathArena Final-Answer Competitions—66.8%
ProofBench63%—

Knowledge MiMo-V2.6-Flash leads

MiMo-V2.6-Flash: 42.2 (#99), Step 3.5 Flash: 39.6 (#132)

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Expert15011421

Multimodal Not comparable

MiMo-V2.6-Flash: 40.5 (#47), Step 3.5 Flash: —

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Vision1259—

Multilingual MiMo-V2.6-Flash leads

MiMo-V2.6-Flash: 54.0 (#51), Step 3.5 Flash: 50.5 (#119)

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Non-English14341385
LMArena Chinese15111447
LMArena French14751421
LMArena Russian14091385
LMArena Spanish14561419
LMArena German—1405
LMArena Japanese—1354
LMArena Korean—1352

Instruction Following MiMo-V2.6-Flash leads

MiMo-V2.6-Flash: 76.8 (#35), Step 3.5 Flash: 73.1 (#124)

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Instruction Following14631385

Long Context MiMo-V2.6-Flash leads

MiMo-V2.6-Flash: 44.8 (#57), Step 3.5 Flash: 42.8 (#117)

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Longer Query14631402

Writing & Preference MiMo-V2.6-Flash leads

MiMo-V2.6-Flash: 63.1 (#67), Step 3.5 Flash: 58.8 (#113)

BenchmarkMiMo-V2.6-FlashStep 3.5 Flash
LMArena Text14551403
LMArena Creative Writing14001357
LMArena Multi-Turn14511405

Frequently asked questions

Is MiMo-V2.6-Flash better than Step 3.5 Flash?

MiMo-V2.6-Flash is the stronger model overall, scoring 48.5 to 42.3 on the Noometry Index.

Which is cheaper, MiMo-V2.6-Flash or Step 3.5 Flash?

Step 3.5 Flash is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; MiMo-V2.6-Flash lists at $0.14 and $0.28.

Is MiMo-V2.6-Flash or Step 3.5 Flash better for coding?

MiMo-V2.6-Flash scores higher on coding benchmarks: 53.4 versus 42.4 in the Noometry coding category.

Which has the bigger context window?

MiMo-V2.6-Flash does, with 1.05M tokens against 256K.

How many benchmarks do MiMo-V2.6-Flash and Step 3.5 Flash share?

14 benchmarks have published results for both models. MiMo-V2.6-Flash has 19 scored results on Noometry and Step 3.5 Flash has 19.

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