Noometry

Model comparison

Gemini 3.6 Flash vs Kimi K2.5 Instant

Gemini 3.6 Flash is the stronger model overall, scoring 54.1 to 42.9 on the Noometry Index.

Last verified . 18 shared benchmarks.

Gemini 3.6 Flash Google

54.1

Rank #30 Confirmed

Kimi K2.5 Instant Moonshot AI

42.9

Rank #92 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Gemini 3.6 Flash scores higher in 8 categories and Kimi K2.5 Instant in 1 category; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.6 Flash leads 58.9 to 28.5.
  • Kimi K2.5 Instant has downloadable open weights; the other is API-only.

Side by side

Gemini 3.6 FlashKimi K2.5 Instant
ProviderGoogleMoonshot AI
Noometry Index54.142.9
Released2026-07-21—
WeightsProprietaryOpen
Context window1.05M—
Max output66K—
Input $ / M tokens$0.75—
Output $ / M tokens$3.75—
Results tracked4618

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Category by category

Coding Gemini 3.6 Flash leads

Gemini 3.6 Flash: 49.6 (#45), Kimi K2.5 Instant: 42.3 (#95)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena WebDev15361404
LMArena Coding14921483
DeepSWE46.7%—
FrontierCode34.4%—
SciCode52.7%—
WeirdML56.1%—
ALE-Bench715.52—

Agentic & Tool Use Not comparable

Gemini 3.6 Flash: 32.4 (#56), Kimi K2.5 Instant: —

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
APEX-Agents46.9%—
GDP.pdf14%—

Reasoning Gemini 3.6 Flash leads

Gemini 3.6 Flash: 58.9 (#20), Kimi K2.5 Instant: 28.5 (#88)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena Hard Prompts14861443
ARC-AGI-260.4%—
NYT Connections (extended)89%—
ARC-AGI-191.2%—
CritPt10.6%—
Chess Puzzles43%—
Mystery Game Puzzles30%—
DTBench95.5%—
LMCA44.9%—
Epoch Capabilities Index154.36—

Math Gemini 3.6 Flash leads

Gemini 3.6 Flash: 57.0 (#33), Kimi K2.5 Instant: 36.6 (#105)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena Math15041443
FrontierMath (Tiers 1-3)58.9%—
FrontierMath Tier 422%—
MathArena Final-Answer Competitions70.8%—
OTIS Mock AIME 2024-202594.2%—
ProofBench36%—

Knowledge Gemini 3.6 Flash leads

Gemini 3.6 Flash: 67.8 (#7), Kimi K2.5 Instant: 39.5 (#121)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena Expert14891438
GPQA Diamond94.1%—
SimpleQA Verified66.2%—

Multimodal Too close to call

Gemini 3.6 Flash: 38.7 (#55), Kimi K2.5 Instant: 39.5 (#47)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena Vision12971254
Blueprint-Bench 231.2%—
Furniture Assembly23.3%—
LMArena Document1456—

Multilingual Gemini 3.6 Flash leads

Gemini 3.6 Flash: 56.8 (#17), Kimi K2.5 Instant: 52.2 (#89)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena Non-English14701406
LMArena Chinese15301450
LMArena French15011403
LMArena German14781413
LMArena Korean14351378
LMArena Russian14901404
LMArena Spanish14771448
LMArena Japanese1477—

Instruction Following Gemini 3.6 Flash leads

Gemini 3.6 Flash: 77.2 (#27), Kimi K2.5 Instant: 75.5 (#61)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena Instruction Following14671430

Long Context Gemini 3.6 Flash leads

Gemini 3.6 Flash: 45.1 (#47), Kimi K2.5 Instant: 43.8 (#82)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena Longer Query14751435

Writing & Preference Gemini 3.6 Flash leads

Gemini 3.6 Flash: 68.3 (#26), Kimi K2.5 Instant: 60.8 (#91)

BenchmarkGemini 3.6 FlashKimi K2.5 Instant
LMArena Text14781420
LMArena Creative Writing14641379
LMArena Multi-Turn14811427
EQ-Bench Creative Writing1604—

Frequently asked questions

Is Gemini 3.6 Flash better than Kimi K2.5 Instant?

Gemini 3.6 Flash is the stronger model overall, scoring 54.1 to 42.9 on the Noometry Index.

Is Gemini 3.6 Flash or Kimi K2.5 Instant better for coding?

Gemini 3.6 Flash scores higher on coding benchmarks: 49.6 versus 42.3 in the Noometry coding category.

How many benchmarks do Gemini 3.6 Flash and Kimi K2.5 Instant share?

18 benchmarks have published results for both models. Gemini 3.6 Flash has 46 scored results on Noometry and Kimi K2.5 Instant has 18.

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