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Grok 4.7 vs Kimi K2.5

Updated October 21, 2026. 62 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Grok 4.7 Replace Kimi K2.5
Grok 4.7xAI
Coding
75.0
Overall
46.4
Output $/M
$6.00
27
Kimi K2.5Moonshot AI
Coding
58.5
Overall
23.5
Output $/M
$2.50
35
vs boards won of 62 shared

Decision reading

Pick Grok 4.7 for coding: it scores 75.0 on the Vibe Coding Index against 58.5 for Kimi K2.5.

Pick Kimi K2.5 when output tokens cost 2.4x less, or when what matters is LMArena Text: coding or LMArena Text: software and IT, where it leads.

Model AGrok 4.7xAI75.0/1002 independent benchmarksNo cost per solved taskModel BKimi K2.5Moonshot AI58.5/1002 independent benchmarks$0.24 per solved task
Shared results
62
Grok 4.7 only
37
Kimi K2.5 only
36
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
Grok 4.7 75.0 from 2 benchmarks, Kimi K2.5 58.5 from 2 benchmarks.
Widest category
Agentic work, 36.1 points apart on average over 4 shared benchmarks.
Widest single gap
Vibe Code Bench (Vals AI): Grok 4.7 86.2% against Kimi K2.5 17.5%, 68.6 points apart on a 0 to 100 scale.
Output price
Grok 4.7 $6.00 against Kimi K2.5 $2.50 per million output tokens, 2.4x apart.
Context window
Grok 4.7 takes 500K 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
CategoryGrok 4.7BarsKimi K2.5Ties
Coding72
Intelligence20
Agentic work40
Reasoning44
Math02
Knowledge24
Web design60
General223
All shared boards2735
CodingLike-for-likeFour of these boards feed the Vibe Coding Index72
Coding benchmarks for Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi K2.5Leader
SWE-bench VerifiedNot measured70.8%Only Kimi K2.5 measured
SWE-bench MultilingualNot measured67.3%Only Kimi K2.5 measured
LiveBench coding84.5%Not measuredOnly Grok 4.7 measured
LMArena WebDev16371437Grok 4.7
AA Coding IndexNot measured46.8Only Kimi K2.5 measured
LiveCodeBench (Vals AI)Not measured83.9%Only Kimi K2.5 measured
SWE-bench Verified (Vals AI)Not measured70.0%Only Kimi K2.5 measured
Terminal-Bench 4 (Vals AI)28.8%Not measuredOnly Grok 4.7 measured
Vibe Code Bench (Vals AI)86.2%17.5%Grok 4.7
Code migration (Vals AI)44.8%7.0%Grok 4.7
ProgramBench (Vals AI)0.5%Not measuredOnly Grok 4.7 measured
IOI (Vals AI)57.7%Not measuredOnly Grok 4.7 measured
Terminal-Bench 2.1 (Vals AI)73.4%42.0%Grok 4.7
SWE-bench Multimodal (Vals AI)42.9%Not measuredOnly Grok 4.7 measured
CyberBench (Vals AI)69.5%Not measuredOnly Grok 4.7 measured
SciCode57.8%Not measuredOnly Grok 4.7 measured
Terminal-Bench Hard (Artificial Analysis run)Not measured34.8%Only Kimi K2.5 measured
Terminal-BenchNot measured43.2%Only Kimi K2.5 measured
FrontierCode47.6%Not measuredOnly Grok 4.7 measured
FrontierSWE29.5%Not measuredOnly Grok 4.7 measured
WeirdMLNot measured45.6%Only Kimi K2.5 measured
ALE-BenchNot measured821.6Only Kimi K2.5 measured
LMArena Text: coding14321483Kimi K2.5
LMArena Text: software and IT14211471Kimi K2.5
LMArena WebDev: React16631429Grok 4.7
LMArena WebDev: HTML16271426Grok 4.7
LMArena WebDev: from an image15861439Grok 4.7
Neither model has a result on the other 11 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi K2.5Leader
AA Intelligence Index46.423.5Grok 4.7
Epoch Capabilities Index154.4148.1Grok 4.7
Agentic workLike-for-likePublic boards, shown as published, kept out of the index40
Agentic work benchmarks for Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi K2.5Leader
Design Arena: agents building web appsNot measured1136Only Kimi K2.5 measured
Design Arena: agents building full-stack appsNot measured1114Only Kimi K2.5 measured
Design Arena: agents building mobile appsNot measured1147Only Kimi K2.5 measured
Design Arena: agents building Android appsNot measured1124Only Kimi K2.5 measured
Design Arena: agents building Godot gamesNot measured1219Only Kimi K2.5 measured
LiveBench research86.4%Not measuredOnly Grok 4.7 measured
LiveBench browser60.0%Not measuredOnly Grok 4.7 measured
LiveBench long agentic50.1%Not measuredOnly Grok 4.7 measured
SREBench (Vals AI)3.8%Not measuredOnly Grok 4.7 measured
Finance Agent (Vals AI)52.3%35.8%Grok 4.7
Tax Agent Bench (Vals AI)34.2%Not measuredOnly Grok 4.7 measured
Legal Research Bench (Vals AI)47.1%15.9%Grok 4.7
Harvey's Legal Agent Benchmark (Vals AI)18.3%Not measuredOnly Grok 4.7 measured
Excel Modeling Benchmark (Vals AI)67.0%28.5%Grok 4.7
BioMysteryBench (Vals AI)69.3%Not measuredOnly Grok 4.7 measured
Terminal-Bench-Science (Vals AI)10.0%Not measuredOnly Grok 4.7 measured
Vals Science Index34.8%Not measuredOnly Grok 4.7 measured
Robo-bench (Vals AI)0.2%Not measuredOnly Grok 4.7 measured
τ²-Bench TelecomNot measured95.9%Only Kimi K2.5 measured
APEX-Agents54.6%Not measuredOnly Grok 4.7 measured
OSWorldNot measured63.3%Only Kimi K2.5 measured
Vending-Bench 2$10,537$1,198Grok 4.7
Neither model has a result on the other 17 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index44
Reasoning benchmarks for Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi K2.5Leader
GPQA DiamondNot measured84.1%Only Kimi K2.5 measured
LiveBench reasoning82.7%Not measuredOnly Grok 4.7 measured
MysteryMechanism (Vals AI)25.2%Not measuredOnly Grok 4.7 measured
MMMU Pro (Vals AI)Not measured84.3%Only Kimi K2.5 measured
GPQA Diamond (Artificial Analysis run)Not measured87.9%Only Kimi K2.5 measured
Humanity's Last Exam (Artificial Analysis run)43.1%30.7%Grok 4.7
GPQA Diamond (Epoch AI run)92.7%Not measuredOnly Grok 4.7 measured
ARC-AGI90.2%65.3%Grok 4.7
ARC-AGI-261.4%11.8%Grok 4.7
SimpleBenchNot measured46.8%Only Kimi K2.5 measured
Chess puzzles41.0%Not measuredOnly Grok 4.7 measured
Mystery game puzzles29.0%Not measuredOnly Grok 4.7 measured
LMArena Text: hard prompts14151453Kimi K2.5
LMArena Text: expert14391466Kimi K2.5
LMArena Text: hard prompts in English14271460Kimi K2.5
LMArena Vision: diagrams12541282Kimi K2.5
LMArena Vision: homework13091297Grok 4.7
Neither model has a result on the other 4 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi K2.5Leader
AIMENot measured95.6%Only Kimi K2.5 measured
OTIS Mock AIME98.1%Not measuredOnly Grok 4.7 measured
FrontierMath, tiers 1 to 353.0%Not measuredOnly Grok 4.7 measured
FrontierMath, tier 417.1%Not measuredOnly Grok 4.7 measured
ProofBench26.0%Not measuredOnly Grok 4.7 measured
LMArena Text: math14141470Kimi K2.5
LMArena Text: mathematical work14351473Kimi K2.5
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index24
Knowledge benchmarks for Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi K2.5Leader
MMLU ProNot measured85.9%Only Kimi K2.5 measured
LegalBench (Vals AI)84.4%Not measuredOnly Grok 4.7 measured
CaseLaw (Vals AI)Not measured58.7%Only Kimi K2.5 measured
CorpFin (Vals AI)Not measured68.3%Only Kimi K2.5 measured
TaxEval (Vals AI)Not measured74.2%Only Kimi K2.5 measured
MortgageTax (Vals AI)Not measured66.5%Only Kimi K2.5 measured
MedQA (Vals AI)Not measured94.4%Only Kimi K2.5 measured
MedCode (Vals AI)49.5%39.3%Grok 4.7
SimpleQA Verified56.0%34.3%Grok 4.7
LMArena Text: science14191459Kimi K2.5
LMArena Text: medicine and healthcare13951448Kimi K2.5
LMArena Text: legal and government14231441Kimi K2.5
LMArena Text: business and finance13891427Kimi K2.5
Neither model has a result on the other 4 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index60
Web design benchmarks for Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi K2.5Leader
Design Arena: websites12551249Grok 4.7
Design Arena: UI components12711236Grok 4.7
Design Arena: game dev13141207Grok 4.7
Design Arena: data viz12271219Grok 4.7
Design Arena: 3D12691205Grok 4.7
Design Arena: all code categories12711236Grok 4.7
Design Arena: SVGNot measured1149Only Kimi K2.5 measured
Design Arena: ASCII artNot measured1165Only Kimi K2.5 measured
LiveBench design78.0%Not measuredOnly Grok 4.7 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index223
General benchmarks for Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi K2.5Leader
Vals Index58.6%Not measuredOnly Grok 4.7 measured
LiveBench data analysis76.9%Not measuredOnly Grok 4.7 measured
Public Benefits Bench (Vals AI)65.6%Not measuredOnly Grok 4.7 measured
SAGE (Vals AI)40.8%49.9%Kimi K2.5
MedScribe (Vals AI)89.4%76.4%Grok 4.7
IFBenchNot measured70.2%Only Kimi K2.5 measured
Long context reasoning (AA-LCR)80.0%78.0%Grok 4.7
DTBench96.0%Not measuredOnly Grok 4.7 measured
LMCA49.4%Not measuredOnly Grok 4.7 measured
Fiction.LiveBenchNot measured86.1%Only Kimi K2.5 measured
CL-benchNot measured19.3%Only Kimi K2.5 measured
Furniture assembly20.8%Not measuredOnly Grok 4.7 measured
CL-bench LifeNot measured13.2%Only Kimi K2.5 measured
LMArena Text13991445Kimi K2.5
LMArena Text: instruction following14061431Kimi K2.5
LMArena Text: creative writing13811422Kimi K2.5
LMArena Vision12311269Kimi K2.5
LMArena Text: English14111453Kimi K2.5
LMArena Text: non-English13861433Kimi K2.5
LMArena Text: Chinese14491494Kimi K2.5
LMArena Text: German13661441Kimi K2.5
LMArena Text: Japanese13591423Kimi K2.5
LMArena Text: Korean13831412Kimi K2.5
LMArena Text: French14311454Kimi K2.5
LMArena Text: Spanish14061450Kimi K2.5
LMArena Text: Russian13991435Kimi K2.5
LMArena Text: Polish14201445Kimi K2.5
LMArena Text: multi-turn13941444Kimi K2.5
LMArena Text: longer queries14161445Kimi K2.5
LMArena Text: writing and language13941425Kimi K2.5
LMArena Text: entertainment and media13761417Kimi K2.5
LMArena Vision: English12291274Kimi K2.5
LMArena Vision: Chinese12501328Kimi K2.5
LMArena Vision: reading text12411276Kimi K2.5
LMArena Vision: humorNot measured1284Only Kimi K2.5 measured
LMArena Vision: captioningNot measured1257Only Kimi K2.5 measured
LMArena Vision: recognizing thingsNot measured1285Only Kimi K2.5 measured
LMArena Vision: creative writing12171269Kimi K2.5
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 Grok 4.7 and Kimi K2.5
BenchmarkGrok 4.7Kimi 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

Grok 4.7$0.0050Fits in one request
Kimi K2.5$0.0018Fits in one request

Kimi K2.5 costs less

Repository review

50K input + 3K output tokens

Grok 4.7$0.118Fits in one request
Kimi K2.5$0.033Fits in one request

Kimi K2.5 costs less

Agent loop

200K input + 10K output tokens

Grok 4.7$0.460Fits 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 Grok 4.7 and Kimi K2.5
SpecificationSpaceXAI Grok 4.7MoonshotAI Kimi K2.5
MakerxAIMoonshot AI
WeightsNo public weights listedOpen weights
ReleasedSeptember 21, 2026January 27, 2026
Context window500K262K
Input $/Mtok$2.00$0.50
Output $/Mtok$6.00$2.50
Coding index75.058.5
Independent measurements behind it22
Cost per solved taskNot computable$0.24
SourceOpenRouter listingOpenRouter listing

Questions

Is Grok 4.7 better than Kimi K2.5 for coding?

Pick Grok 4.7 for coding: it scores 75.0 on the Vibe Coding Index against 58.5 for Kimi K2.5. Pick Kimi K2.5 when output tokens cost 2.4x less, or when what matters is LMArena Text: coding or LMArena Text: software and IT, where it leads.

Which is cheaper, Grok 4.7 or Kimi K2.5?

Grok 4.7 costs $2.00 per million input tokens and $6.00 per million output tokens; Kimi K2.5 costs $0.50 and $2.50. Cost per solved task is known for Kimi K2.5 only.

Which has the bigger context window, Grok 4.7 or Kimi K2.5?

Grok 4.7, with 500K tokens against 262K.

How many benchmarks is the Grok 4.7 vs Kimi K2.5 comparison based on?

62 benchmarks have a result for both models as of October 21, 2026. Grok 4.7's coding index rests on 2 independent benchmarks 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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