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Gemini 3.6 Flash vs Kimi K2.5

Updated October 21, 2026. 79 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Gemini 3.6 Flash Replace Kimi K2.5
Gemini 3.6 FlashGoogle
Coding
48.3
Overall
34.0
Output $/M
$3.75
76
Kimi K2.5Moonshot AI
Coding
58.5
Overall
23.5
Output $/M
$2.50
3
vs boards won of 79 shared

Decision reading

Pick Kimi K2.5 for coding: it scores 58.5 on the Vibe Coding Index against 48.3 for Gemini 3.6 Flash.

Pick Gemini 3.6 Flash when the context window is larger, 1.05M against 262K tokens, or when what matters is LMArena WebDev or AA Coding Index, where it leads.

Model AGemini 3.6 FlashGoogle48.3/1001 independent benchmark$1.49 per solved taskModel BKimi K2.5Moonshot AI58.5/1002 independent benchmarks$0.24 per solved task
Shared results
79
Gemini 3.6 Flash only
28
Kimi K2.5 only
19
Like-for-like categories
8 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Gemini 3.6 Flash 48.3 from 1 benchmark, Kimi K2.5 58.5 from 2 benchmarks.
Widest category
Coding, 16.2 points apart on average over 14 shared benchmarks.
Widest single gap
ARC-AGI-2: Gemini 3.6 Flash 60.4% against Kimi K2.5 11.8%, 48.6 points apart on a 0 to 100 scale.
Output price
Gemini 3.6 Flash $3.75 against Kimi K2.5 $2.50 per million output tokens, 1.5x apart.
Context window
Gemini 3.6 Flash takes 1.05M tokens, Kimi K2.5 262K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryGemini 3.6 FlashBarsKimi K2.5Ties
Coding131
Intelligence20
Agentic work70
Reasoning110
Math20
Knowledge91
Web design70
General251
All shared boards763
CodingLike-for-likeFour of these boards feed the Vibe Coding Index131
Coding benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
SWE-bench VerifiedNot measured70.8%Only Kimi K2.5 measured
SWE-bench MultilingualNot measured67.3%Only Kimi K2.5 measured
LMArena WebDev15381437Gemini 3.6 Flash
AA Coding Index69.246.8Gemini 3.6 Flash
LiveCodeBench (Vals AI)88.1%83.9%Gemini 3.6 Flash
SWE-bench Verified (Vals AI)79.6%70.0%Gemini 3.6 Flash
Vibe Code Bench (Vals AI)64.0%17.5%Gemini 3.6 Flash
Code migration (Vals AI)30.9%7.0%Gemini 3.6 Flash
ProgramBench (Vals AI)0.0%Not measuredOnly Gemini 3.6 Flash measured
IOI (Vals AI)35.1%Not measuredOnly Gemini 3.6 Flash measured
Terminal-Bench 2.1 (Vals AI)73.8%42.0%Gemini 3.6 Flash
CyberBench (Vals AI)45.4%Not measuredOnly Gemini 3.6 Flash measured
SciCode53.4%Not measuredOnly Gemini 3.6 Flash measured
Terminal-Bench Hard (Artificial Analysis run)Not measured34.8%Only Kimi K2.5 measured
Terminal-BenchNot measured43.2%Only Kimi K2.5 measured
FrontierCode34.4%Not measuredOnly Gemini 3.6 Flash measured
WeirdML56.1%45.6%Gemini 3.6 Flash
ALE-Bench715.5821.6Kimi K2.5
LMArena Text: coding14911483Gemini 3.6 Flash
LMArena Text: software and IT14921471Gemini 3.6 Flash
LMArena WebDev: React15281429Gemini 3.6 Flash
LMArena WebDev: HTML15471426Gemini 3.6 Flash
LMArena WebDev: from an image15451439Gemini 3.6 Flash
Neither model has a result on the other 15 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
AA Intelligence Index34.023.5Gemini 3.6 Flash
Epoch Capabilities Index154.5148.1Gemini 3.6 Flash
Agentic workLike-for-likePublic boards, shown as published, kept out of the index70
Agentic work benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
AA Agentic Index29.0Not measuredOnly Gemini 3.6 Flash measured
Design Arena: agents building web apps11971136Gemini 3.6 Flash
Design Arena: agents building full-stack apps11811114Gemini 3.6 Flash
Design Arena: agents building mobile apps11991147Gemini 3.6 Flash
Design Arena: agents building Android apps12081124Gemini 3.6 Flash
Design Arena: agents building Godot gamesNot measured1219Only Kimi K2.5 measured
Design Arena: agents building games1181Not measuredOnly Gemini 3.6 Flash measured
Design Arena: HTML slides1148Not measuredOnly Gemini 3.6 Flash measured
Design Arena: PowerPoint slides1146Not measuredOnly Gemini 3.6 Flash measured
Design Arena: spreadsheets1017Not measuredOnly Gemini 3.6 Flash measured
Finance Agent (Vals AI)56.3%35.8%Gemini 3.6 Flash
Tax Agent Bench (Vals AI)18.0%Not measuredOnly Gemini 3.6 Flash measured
Legal Research Bench (Vals AI)25.0%15.9%Gemini 3.6 Flash
Excel Modeling Benchmark (Vals AI)65.4%28.5%Gemini 3.6 Flash
BioMysteryBench (Vals AI)58.5%Not measuredOnly Gemini 3.6 Flash measured
Terminal-Bench-Science (Vals AI)4.3%Not measuredOnly Gemini 3.6 Flash measured
τ²-Bench TelecomNot measured95.9%Only Kimi K2.5 measured
APEX-Agents46.9%Not measuredOnly Gemini 3.6 Flash measured
OSWorldNot measured63.3%Only Kimi K2.5 measured
Vending-Bench 2Not measured$1,198Only Kimi K2.5 measured
Neither model has a result on the other 19 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index110
Reasoning benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
GPQA Diamond93.4%84.1%Gemini 3.6 Flash
MMMU Pro (Vals AI)88.4%84.3%Gemini 3.6 Flash
GPQA Diamond (Artificial Analysis run)92.8%87.9%Gemini 3.6 Flash
Humanity's Last Exam (Artificial Analysis run)40.8%30.7%Gemini 3.6 Flash
GPQA Diamond (Epoch AI run)94.1%Not measuredOnly Gemini 3.6 Flash measured
ARC-AGI91.2%65.3%Gemini 3.6 Flash
ARC-AGI-260.4%11.8%Gemini 3.6 Flash
SimpleBenchNot measured46.8%Only Kimi K2.5 measured
Chess puzzles42.0%Not measuredOnly Gemini 3.6 Flash measured
Mystery game puzzles30.0%Not measuredOnly Gemini 3.6 Flash measured
LMArena Text: hard prompts14861453Gemini 3.6 Flash
LMArena Text: expert14901466Gemini 3.6 Flash
LMArena Text: hard prompts in English14841460Gemini 3.6 Flash
LMArena Vision: diagrams13141282Gemini 3.6 Flash
LMArena Vision: homework13141297Gemini 3.6 Flash
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
AIMENot measured95.6%Only Kimi K2.5 measured
OTIS Mock AIME94.2%Not measuredOnly Gemini 3.6 Flash measured
FrontierMath, tiers 1 to 358.9%Not measuredOnly Gemini 3.6 Flash measured
FrontierMath, tier 422.0%Not measuredOnly Gemini 3.6 Flash measured
ProofBench36.0%Not measuredOnly Gemini 3.6 Flash measured
LMArena Text: math15081470Gemini 3.6 Flash
LMArena Text: mathematical work14921473Gemini 3.6 Flash
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index91
Knowledge benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
MMLU Pro89.3%85.9%Gemini 3.6 Flash
LegalBench (Vals AI)86.7%Not measuredOnly Gemini 3.6 Flash measured
CaseLaw (Vals AI)Not measured58.7%Only Kimi K2.5 measured
CorpFin (Vals AI)63.3%68.3%Kimi K2.5
TaxEval (Vals AI)74.9%74.2%Gemini 3.6 Flash
MortgageTax (Vals AI)67.6%66.5%Gemini 3.6 Flash
MedQA (Vals AI)Not measured94.4%Only Kimi K2.5 measured
MedCode (Vals AI)53.1%39.3%Gemini 3.6 Flash
SimpleQA Verified66.2%34.3%Gemini 3.6 Flash
LMArena Text: science14891459Gemini 3.6 Flash
LMArena Text: medicine and healthcare14691448Gemini 3.6 Flash
LMArena Text: legal and government14791441Gemini 3.6 Flash
LMArena Text: business and finance14641427Gemini 3.6 Flash
Neither model has a result on the other 4 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index70
Web design benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
Design Arena: websites13011249Gemini 3.6 Flash
Design Arena: UI components12971236Gemini 3.6 Flash
Design Arena: game dev12631207Gemini 3.6 Flash
Design Arena: data viz12891219Gemini 3.6 Flash
Design Arena: 3D12721205Gemini 3.6 Flash
Design Arena: all code categories12901236Gemini 3.6 Flash
Design Arena: SVGNot measured1149Only Kimi K2.5 measured
Design Arena: ASCII art12811165Gemini 3.6 Flash
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index251
General benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
Public Benefits Bench (Vals AI)56.6%Not measuredOnly Gemini 3.6 Flash measured
SAGE (Vals AI)48.7%49.9%Kimi K2.5
MedScribe (Vals AI)79.7%76.4%Gemini 3.6 Flash
Vals Multimodal Index65.1%Not measuredOnly Gemini 3.6 Flash measured
IFBenchNot measured70.2%Only Kimi K2.5 measured
Long context reasoning (AA-LCR)80.0%78.0%Gemini 3.6 Flash
DTBench95.5%Not measuredOnly Gemini 3.6 Flash measured
LMCA44.9%Not measuredOnly Gemini 3.6 Flash measured
Fiction.LiveBenchNot measured86.1%Only Kimi K2.5 measured
CL-benchNot measured19.3%Only Kimi K2.5 measured
Furniture assembly23.3%Not measuredOnly Gemini 3.6 Flash measured
CL-bench LifeNot measured13.2%Only Kimi K2.5 measured
LMArena Text14801445Gemini 3.6 Flash
LMArena Text: instruction following14671431Gemini 3.6 Flash
LMArena Text: creative writing14661422Gemini 3.6 Flash
LMArena Vision12991269Gemini 3.6 Flash
LMArena Text: English14821453Gemini 3.6 Flash
LMArena Text: non-English14701433Gemini 3.6 Flash
LMArena Text: Chinese15311494Gemini 3.6 Flash
LMArena Text: German14801441Gemini 3.6 Flash
LMArena Text: Japanese14751423Gemini 3.6 Flash
LMArena Text: Korean14291412Gemini 3.6 Flash
LMArena Text: French15031454Gemini 3.6 Flash
LMArena Text: Spanish14761450Gemini 3.6 Flash
LMArena Text: Russian14881435Gemini 3.6 Flash
LMArena Text: Polish14731445Gemini 3.6 Flash
LMArena Text: multi-turn14811444Gemini 3.6 Flash
LMArena Text: longer queries14751445Gemini 3.6 Flash
LMArena Text: writing and language14701425Gemini 3.6 Flash
LMArena Text: entertainment and media14561417Gemini 3.6 Flash
LMArena Vision: English12951274Gemini 3.6 Flash
LMArena Vision: Chinese13571328Gemini 3.6 Flash
LMArena Vision: reading text13121276Gemini 3.6 Flash
LMArena Vision: humor12891284Gemini 3.6 Flash
LMArena Vision: captioningNot measured1257Only Kimi K2.5 measured
LMArena Vision: recognizing thingsNot measured1285Only Kimi K2.5 measured
LMArena Vision: creative writing12781269Gemini 3.6 Flash
LMArena Document1456Not measuredOnly Gemini 3.6 Flash measured
Neither model has a result on the other 8 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemini 3.6 Flash and Kimi K2.5
BenchmarkGemini 3.6 FlashKimi K2.5Leader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Gemini 3.6 Flash$0.0026Fits in one request
Kimi K2.5$0.0018Fits in one request

Kimi K2.5 costs less

Repository review

50K input + 3K output tokens

Gemini 3.6 Flash$0.049Fits in one request
Kimi K2.5$0.033Fits in one request

Kimi K2.5 costs less

Agent loop

200K input + 10K output tokens

Gemini 3.6 Flash$0.188Fits in one request
Kimi K2.5$0.125Fits in one request

Kimi K2.5 costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Gemini 3.6 Flash and Kimi K2.5
SpecificationGoogle Gemini 3.6 FlashMoonshotAI Kimi K2.5
MakerGoogleMoonshot AI
WeightsNo public weights listedOpen weights
ReleasedJuly 21, 2026January 27, 2026
Context window1.05M262K
Input $/Mtok$0.75$0.50
Output $/Mtok$3.75$2.50
Coding index48.358.5
Independent measurements behind it12
Cost per solved task$1.49$0.24
SourceOpenRouter listingOpenRouter listing

Questions

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

Pick Kimi K2.5 for coding: it scores 58.5 on the Vibe Coding Index against 48.3 for Gemini 3.6 Flash. Pick Gemini 3.6 Flash when the context window is larger, 1.05M against 262K tokens, or when what matters is LMArena WebDev or AA Coding Index, where it leads.

Which is cheaper, Gemini 3.6 Flash or Kimi K2.5?

Gemini 3.6 Flash costs $0.75 per million input tokens and $3.75 per million output tokens; Kimi K2.5 costs $0.50 and $2.50. Per solved SWE-bench Verified task, Gemini 3.6 Flash costs $1.49 and Kimi K2.5 $0.24.

Which has the bigger context window, Gemini 3.6 Flash or Kimi K2.5?

Gemini 3.6 Flash, with 1.05M tokens against 262K.

How many benchmarks is the Gemini 3.6 Flash vs Kimi K2.5 comparison based on?

79 benchmarks have a result for both models as of October 21, 2026. Gemini 3.6 Flash's coding index rests on 1 independent benchmark and Kimi K2.5's on 2. Where only one model has a result, the page says so instead of naming a winner.

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