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Gemini 2.5 Pro vs Kimi K3

Kimi K3 leads Gemini 2.5 Pro on coding, 62.3 to 19.1 on the Vibe Coding Index, and Gemini 2.5 Pro costs 1.5x less per output token ($10.00 vs $15.00 per million). Updated October 22, 2026; 62 benchmarks have a result for both.

Replace Gemini 2.5 Pro Replace Kimi K3
Gemini 2.5 ProGoogle
Coding
19.1
Overall
41.8
Output $/M
$10.00
4
Kimi K3Moonshot AI
Coding
62.3
Overall
66.5
Output $/M
$15.00
58
vs boards won of 62 shared

Gemini 2.5 Pro or Kimi K3: which to pick

Pick Kimi K3 for coding: it scores 62.3 on the Vibe Coding Index against 19.1 for Gemini 2.5 Pro.

Pick Gemini 2.5 Pro for output tokens 1.5x cheaper ($10.00 vs $15.00 per million) and a lower cost per solved task ($0.64 against $0.81).

Model AGemini 2.5 ProGoogle19.1/1003 independent benchmarks$0.64 per solved taskModel BKimi K3Moonshot AI62.3/1006 independent benchmarks$0.81 per solved task
Shared results
62
Gemini 2.5 Pro only
28
Kimi K3 only
55
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

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 2.5 Pro 19.1 from 3 benchmarks, Kimi K3 62.3 from 6 benchmarks.
Widest category
Coding, 39.5 points apart on average over 10 shared benchmarks.
Widest single gap
Vibe Code Bench (Vals AI): Gemini 2.5 Pro 0.4% against Kimi K3 85.0%, 84.6 points apart on a 0 to 100 scale.
Output price
Gemini 2.5 Pro $10.00 against Kimi K3 $15.00 per million output tokens, 1.5x apart.
Context window
Both take 1.05M tokens.

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 2.5 ProBarsKimi K3Ties
Coding010
Intelligence02
Agentic work02
Reasoning08
Math05
Knowledge25
Web design06
General220
All shared boards458
CodingLike-for-likeSix of these boards feed the Vibe Coding Index010
Coding benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
SWE-bench Verified53.6%Not measuredOnly Gemini 2.5 Pro measured
LiveBench codingNot measured59.3%Only Kimi K3 measured
LMArena WebDev12261655Kimi K3
AA Coding Index33.376.2Kimi K3
LiveCodeBench (Vals AI)Not measured87.2%Only Kimi K3 measured
SWE-bench Verified (Vals AI)54.4%93.4%Kimi K3
Terminal-Bench 4 (Vals AI)Not measured17.2%Only Kimi K3 measured
Vibe Code Bench (Vals AI)0.4%85.0%Kimi K3
Code migration (Vals AI)Not measured16.1%Only Kimi K3 measured
ProgramBench (Vals AI)Not measured2.0%Only Kimi K3 measured
IOI (Vals AI)Not measured48.9%Only Kimi K3 measured
Terminal-Bench 2.1 (Vals AI)Not measured80.9%Only Kimi K3 measured
SWE-bench Multimodal (Vals AI)Not measured44.2%Only Kimi K3 measured
Vibe Code Bench 1-100 (Vals AI)Not measured18.2%Only Kimi K3 measured
CyberBench (Vals AI)Not measured75.2%Only Kimi K3 measured
LiveCodeBench (Artificial Analysis run)80.1%Not measuredOnly Gemini 2.5 Pro measured
SciCode46.3%59.5%Kimi K3
Terminal-Bench Hard (Artificial Analysis run)26.5%Not measuredOnly Gemini 2.5 Pro measured
Terminal-Bench32.6%Not measuredOnly Gemini 2.5 Pro measured
FrontierCodeNot measured44.2%Only Kimi K3 measured
FrontierSWENot measured25.9%Only Kimi K3 measured
GSO-Bench3.9%Not measuredOnly Gemini 2.5 Pro measured
WeirdML54.0%82.6%Kimi K3
ALE-BenchNot measured1524.5Only Kimi K3 measured
LMArena Text: coding14521508Kimi K3
LMArena Text: software and IT14591499Kimi K3
LMArena WebDev: ReactNot measured1670Only Kimi K3 measured
LMArena WebDev: HTML12351644Kimi K3
LMArena WebDev: from an image12851579Kimi K3
Neither model has a result on the other 10 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
AA Intelligence Index16.143.6Kimi K3
Epoch Capabilities Index145.1157.9Kimi K3
Agentic workLike-for-likePublic boards, shown as published, kept out of the index02
Agentic work benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
AA Agentic Index1.650.0Kimi K3
Design Arena: agents building web appsNot measured1295Only Kimi K3 measured
Design Arena: agents building full-stack appsNot measured1315Only Kimi K3 measured
Design Arena: agents building mobile appsNot measured1269Only Kimi K3 measured
Design Arena: agents building Android appsNot measured1253Only Kimi K3 measured
Design Arena: agents building Godot gamesNot measured1223Only Kimi K3 measured
Design Arena: agents building gamesNot measured1252Only Kimi K3 measured
Design Arena: HTML slidesNot measured1206Only Kimi K3 measured
Design Arena: PowerPoint slidesNot measured1247Only Kimi K3 measured
Design Arena: spreadsheetsNot measured1070Only Kimi K3 measured
LiveBench researchNot measured79.0%Only Kimi K3 measured
LiveBench browserNot measured16.0%Only Kimi K3 measured
LiveBench long agenticNot measured42.8%Only Kimi K3 measured
Finance Agent (Vals AI)Not measured53.1%Only Kimi K3 measured
Tax Agent Bench (Vals AI)Not measured33.4%Only Kimi K3 measured
Legal Research Bench (Vals AI)Not measured46.1%Only Kimi K3 measured
Harvey's Legal Agent Benchmark (Vals AI)Not measured12.9%Only Kimi K3 measured
Excel Modeling Benchmark (Vals AI)Not measured66.7%Only Kimi K3 measured
BioMysteryBench (Vals AI)Not measured72.6%Only Kimi K3 measured
Terminal-Bench-Science (Vals AI)Not measured1.4%Only Kimi K3 measured
Time Horizon Index (Vals AI)Not measured10.5%Only Kimi K3 measured
τ²-Bench Telecom54.1%Not measuredOnly Gemini 2.5 Pro measured
APEX-AgentsNot measured47.8%Only Kimi K3 measured
GDPval23.3%Not measuredOnly Gemini 2.5 Pro measured
DeepResearch Bench41.5%Not measuredOnly Gemini 2.5 Pro measured
PostTrainBenchNot measured32.0%Only Kimi K3 measured
Vending-Bench 2$574$5,165Kimi K3
BrowseComp-Plus29.5%Not measuredOnly Gemini 2.5 Pro measured
Neither model has a result on the other 13 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index08
Reasoning benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
GPQA DiamondNot measured92.9%Only Kimi K3 measured
LiveBench reasoningNot measured90.7%Only Kimi K3 measured
MMMU Pro (Vals AI)Not measured88.2%Only Kimi K3 measured
GPQA Diamond (Artificial Analysis run)84.4%93.5%Kimi K3
Humanity's Last Exam (Artificial Analysis run)22.5%46.9%Kimi K3
GPQA Diamond (Epoch AI run)85.3%93.1%Kimi K3
ARC-AGI41.0%94.5%Kimi K3
ARC-AGI-24.9%60.4%Kimi K3
SimpleBenchNot measured60.7%Only Kimi K3 measured
Chess puzzlesNot measured37.0%Only Kimi K3 measured
Mystery game puzzlesNot measured26.0%Only Kimi K3 measured
LMArena Text: hard prompts14551495Kimi K3
LMArena Text: expert14521520Kimi K3
LMArena Text: hard prompts in English14531496Kimi K3
LMArena Vision: diagrams1274Not measuredOnly Gemini 2.5 Pro measured
LMArena Vision: homework1281Not measuredOnly Gemini 2.5 Pro measured
Kagi LLM Benchmark70.3%Not measuredOnly Gemini 2.5 Pro measured
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index05
Math benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
AA Math Index87.7Not measuredOnly Gemini 2.5 Pro measured
AIME 2025 (Artificial Analysis run)87.7%Not measuredOnly Gemini 2.5 Pro measured
OTIS Mock AIME84.7%97.2%Kimi K3
FrontierMath, tiers 1 to 324.6%72.2%Kimi K3
FrontierMath, tier 40.0%39.0%Kimi K3
ProofBenchNot measured87.0%Only Kimi K3 measured
LMArena Text: math14501494Kimi K3
LMArena Text: mathematical work14541505Kimi K3
Neither model has a result on the other 5 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index25
Knowledge benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
MMLU ProNot measured88.0%Only Kimi K3 measured
LegalBench (Vals AI)Not measured86.2%Only Kimi K3 measured
CaseLaw (Vals AI)63.9%Not measuredOnly Gemini 2.5 Pro measured
CorpFin (Vals AI)60.8%71.6%Kimi K3
TaxEval (Vals AI)Not measured75.7%Only Kimi K3 measured
MortgageTax (Vals AI)68.9%66.3%Gemini 2.5 Pro
MedCode (Vals AI)50.6%49.4%Gemini 2.5 Pro
MMLU Pro (Artificial Analysis run)86.2%Not measuredOnly Gemini 2.5 Pro measured
SimpleQA VerifiedNot measured50.6%Only Kimi K3 measured
LMArena Text: science14801508Kimi K3
LMArena Text: medicine and healthcare14761489Kimi K3
LMArena Text: legal and government14801503Kimi K3
LMArena Text: business and finance14391470Kimi K3
FACTS Benchmark Suite61.5%Not measuredOnly Gemini 2.5 Pro measured
Neither model has a result on the other 4 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index06
Web design benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
Design Arena: websites11671334Kimi K3
Design Arena: UI components11371341Kimi K3
Design Arena: game dev11111358Kimi K3
Design Arena: data viz12221351Kimi K3
Design Arena: 3D10801387Kimi K3
Design Arena: all code categories11521360Kimi K3
Design Arena: SVGNot measured1302Only Kimi K3 measured
LiveBench designNot measured77.2%Only Kimi K3 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index220
General benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
Vals IndexNot measured53.0%Only Kimi K3 measured
LiveBench data analysisNot measured78.7%Only Kimi K3 measured
Public Benefits Bench (Vals AI)Not measured68.2%Only Kimi K3 measured
SAGE (Vals AI)41.9%52.8%Kimi K3
MedScribe (Vals AI)73.5%88.0%Kimi K3
Vals Multimodal IndexNot measured73.4%Only Kimi K3 measured
IFBench48.7%Not measuredOnly Gemini 2.5 Pro measured
Long context reasoning (AA-LCR)69.0%88.7%Kimi K3
DTBench82.4%91.2%Kimi K3
LMCA34.8%52.7%Kimi K3
Creative writing (Lech Mazur)83.8%Not measuredOnly Gemini 2.5 Pro measured
Surface Evolver BenchNot measured95.0%Only Kimi K3 measured
Furniture assemblyNot measured34.2%Only Kimi K3 measured
LMArena Text14581476Kimi K3
LMArena Text: instruction following14371485Kimi K3
LMArena Text: creative writing14541457Kimi K3
LMArena Vision1263Not measuredOnly Gemini 2.5 Pro measured
LMArena Text: English14581481Kimi K3
LMArena Text: non-English14521466Kimi K3
LMArena Text: Chinese15071529Kimi K3
LMArena Text: German14871490Kimi K3
LMArena Text: Japanese14611494Kimi K3
LMArena Text: Korean14341460Kimi K3
LMArena Text: French14731492Kimi K3
LMArena Text: Spanish14741472Gemini 2.5 Pro
LMArena Text: Russian14611485Kimi K3
LMArena Text: Polish14791458Gemini 2.5 Pro
LMArena Text: multi-turn14531489Kimi K3
LMArena Text: longer queries14491494Kimi K3
LMArena Text: writing and language14541471Kimi K3
LMArena Text: entertainment and media14411453Kimi K3
LMArena Vision: English1261Not measuredOnly Gemini 2.5 Pro measured
LMArena Vision: Chinese1300Not measuredOnly Gemini 2.5 Pro measured
LMArena Vision: reading text1270Not measuredOnly Gemini 2.5 Pro measured
LMArena Vision: humor1262Not measuredOnly Gemini 2.5 Pro measured
LMArena Vision: captioning1304Not measuredOnly Gemini 2.5 Pro measured
LMArena Vision: recognizing things1283Not measuredOnly Gemini 2.5 Pro measured
LMArena Vision: creative writing1265Not measuredOnly Gemini 2.5 Pro measured
LMArena Document1421Not measuredOnly Gemini 2.5 Pro measured
Neither model has a result on the other 7 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemini 2.5 Pro and Kimi K3
BenchmarkGemini 2.5 ProKimi K3Leader
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 2.5 Pro$0.0063Fits in one request
Kimi K3$0.011Fits in one request

Gemini 2.5 Pro costs less

Repository review

50K input + 3K output tokens

Gemini 2.5 Pro$0.092Fits in one request
Kimi K3$0.195Fits in one request

Gemini 2.5 Pro costs less

Agent loop

200K input + 10K output tokens

Gemini 2.5 Pro$0.350Fits in one request
Kimi K3$0.750Fits in one request

Gemini 2.5 Pro 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 2.5 Pro and Kimi K3
SpecificationGoogle Gemini 2.5 ProMoonshotAI Kimi K3
MakerGoogleMoonshot AI
WeightsNo public weights listedOpen weights
ReleasedJune 17, 2025July 16, 2026
Context window1.05M1.05M
Input $/Mtok$1.25$3.00
Output $/Mtok$10.00$15.00
Coding index19.162.3
Independent measurements behind it36
Cost per solved task$0.64$0.81
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemini 2.5 Pro better than Kimi K3 for coding?

Pick Kimi K3 for coding: it scores 62.3 on the Vibe Coding Index against 19.1 for Gemini 2.5 Pro. Pick Gemini 2.5 Pro for output tokens 1.5x cheaper ($10.00 vs $15.00 per million) and a lower cost per solved task ($0.64 against $0.81).

Which is cheaper, Gemini 2.5 Pro or Kimi K3?

Gemini 2.5 Pro costs $1.25 per million input tokens and $10.00 per million output tokens; Kimi K3 costs $3.00 and $15.00. Per solved SWE-bench Verified task, Gemini 2.5 Pro costs $0.64 and Kimi K3 $0.81.

Which has the bigger context window, Gemini 2.5 Pro or Kimi K3?

Neither: both take 1.05M tokens.

How many benchmarks is the Gemini 2.5 Pro vs Kimi K3 comparison based on?

62 benchmarks have a result for both models as of October 22, 2026. Gemini 2.5 Pro's coding index rests on 3 independent benchmarks and Kimi K3's on 6. Where only one model has a result, the page says so instead of naming a winner.

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<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/gemini-2-5-pro-vs-kimi-k3">LLMBenchmark.ai, Gemini 2.5 Pro vs Kimi K3</a></p>