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R1 0528 vs Kimi K2.6

Updated October 21, 2026. 46 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace R1 0528 Replace Kimi K2.6
R1 0528DeepSeek
Coding
71.4
Overall
13.1
Output $/M
$2.15
0
Kimi K2.6Moonshot AI
Coding
44.2
Overall
27.0
Output $/M
$3.41
46
vs boards won of 46 shared

Decision reading

Pick R1 0528 for coding: it scores 71.4 on the Vibe Coding Index against 44.2 for Kimi K2.6.

Pick Kimi K2.6 when the context window is larger, 262K against 164K tokens, or when what matters is Terminal-Bench Hard (Artificial Analysis run) or WeirdML, where it leads.

Model AR1 0528DeepSeek71.4/1001 independent benchmarkNo cost per solved taskModel BKimi K2.6Moonshot AI44.2/1001 independent benchmark$0.35 per solved task
Shared results
46
R1 0528 only
13
Kimi K2.6 only
63
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
R1 0528 71.4 from 1 benchmark, Kimi K2.6 44.2 from 1 benchmark.
Widest category
Agentic work, 59.4 points apart on average over 1 shared benchmark.
Widest single gap
τ²-Bench Telecom: R1 0528 36.5% against Kimi K2.6 95.9%, 59.4 points apart on a 0 to 100 scale.
Output price
R1 0528 $2.15 against Kimi K2.6 $3.41 per million output tokens, 1.6x apart.
Context window
R1 0528 takes 164K tokens, Kimi K2.6 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
CategoryR1 0528BarsKimi K2.6Ties
Coding05
Intelligence01
Agentic work01
Reasoning06
Math03
Knowledge04
Web design07
General019
All shared boards046
CodingLike-for-likeFour of these boards feed the Vibe Coding Index05
Coding benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
Aider polyglot71.4%Not measuredOnly R1 0528 measured
LMArena WebDevNot measured1509Only Kimi K2.6 measured
AA Coding IndexNot measured61.8Only Kimi K2.6 measured
LiveCodeBench (Vals AI)Not measured86.8%Only Kimi K2.6 measured
SWE-bench Verified (Vals AI)Not measured76.2%Only Kimi K2.6 measured
Vibe Code Bench (Vals AI)Not measured37.9%Only Kimi K2.6 measured
Code migration (Vals AI)Not measured27.8%Only Kimi K2.6 measured
ProgramBench (Vals AI)Not measured0.0%Only Kimi K2.6 measured
Terminal-Bench 2.1 (Vals AI)Not measured53.6%Only Kimi K2.6 measured
LiveCodeBench (Artificial Analysis run)77.0%Not measuredOnly R1 0528 measured
SciCodeNot measured51.5%Only Kimi K2.6 measured
Terminal-Bench Hard (Artificial Analysis run)15.9%43.9%Kimi K2.6
WeirdML41.6%55.9%Kimi K2.6
ALE-Bench804.11092.7Kimi K2.6
LMArena Text: coding14271489Kimi K2.6
LMArena Text: software and IT14351484Kimi K2.6
LMArena WebDev: ReactNot measured1505Only Kimi K2.6 measured
LMArena WebDev: HTMLNot measured1485Only Kimi K2.6 measured
LMArena WebDev: from an imageNot measured1521Only Kimi K2.6 measured
Neither model has a result on the other 19 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
AA Intelligence Index13.127.0Kimi K2.6
Epoch Capabilities IndexNot measured150.9Only Kimi K2.6 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
Agentic work benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
AA Agentic IndexNot measured20.5Only Kimi K2.6 measured
Design Arena: agents building web appsNot measured1268Only Kimi K2.6 measured
Design Arena: agents building full-stack appsNot measured1155Only Kimi K2.6 measured
Design Arena: agents building mobile appsNot measured1156Only Kimi K2.6 measured
Design Arena: agents building Android appsNot measured1166Only Kimi K2.6 measured
Design Arena: agents building Godot gamesNot measured1120Only Kimi K2.6 measured
Design Arena: agents building gamesNot measured1141Only Kimi K2.6 measured
Design Arena: HTML slidesNot measured1184Only Kimi K2.6 measured
Design Arena: PowerPoint slidesNot measured1128Only Kimi K2.6 measured
Design Arena: spreadsheetsNot measured1276Only Kimi K2.6 measured
Finance Agent (Vals AI)Not measured44.9%Only Kimi K2.6 measured
Tax Agent Bench (Vals AI)Not measured12.4%Only Kimi K2.6 measured
Legal Research Bench (Vals AI)Not measured15.9%Only Kimi K2.6 measured
Excel Modeling Benchmark (Vals AI)Not measured57.9%Only Kimi K2.6 measured
τ²-Bench Telecom36.5%95.9%Kimi K2.6
METR time horizons53.8%Not measuredOnly R1 0528 measured
OSWorld 2.0Not measured4.6%Only Kimi K2.6 measured
DeepResearch Bench35.1%Not measuredOnly R1 0528 measured
Vending-Bench 2Not measured$6,205Only Kimi K2.6 measured
Neither model has a result on the other 20 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index06
Reasoning benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
GPQA DiamondNot measured89.1%Only Kimi K2.6 measured
MMMU Pro (Vals AI)Not measured86.3%Only Kimi K2.6 measured
GPQA Diamond (Artificial Analysis run)81.3%91.1%Kimi K2.6
Humanity's Last Exam (Artificial Analysis run)15.8%37.5%Kimi K2.6
GPQA Diamond (Epoch AI run)76.3%90.8%Kimi K2.6
ARC-AGI21.2%Not measuredOnly R1 0528 measured
ARC-AGI-21.1%Not measuredOnly R1 0528 measured
SimpleBench40.8%Not measuredOnly R1 0528 measured
Chess puzzlesNot measured20.0%Only Kimi K2.6 measured
Mystery game puzzlesNot measured18.0%Only Kimi K2.6 measured
EBR-benchNot measured2.4%Only Kimi K2.6 measured
LMArena Text: hard prompts14151470Kimi K2.6
LMArena Text: expert13941491Kimi K2.6
LMArena Text: hard prompts in English14221471Kimi K2.6
LMArena Vision: diagramsNot measured1298Only Kimi K2.6 measured
LMArena Vision: homeworkNot measured1310Only Kimi K2.6 measured
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index03
Math benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
AA Math Index76.0Not measuredOnly R1 0528 measured
AIME 2025 (Artificial Analysis run)76.0%Not measuredOnly R1 0528 measured
OTIS Mock AIME66.4%96.1%Kimi K2.6
FrontierMath, tiers 1 to 3Not measured57.2%Only Kimi K2.6 measured
FrontierMath, tier 4Not measured25.6%Only Kimi K2.6 measured
ProofBenchNot measured16.0%Only Kimi K2.6 measured
MATH level 596.6%Not measuredOnly R1 0528 measured
LMArena Text: math14001474Kimi K2.6
LMArena Text: mathematical work14151480Kimi K2.6
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index04
Knowledge benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
MMLU ProNot measured87.6%Only Kimi K2.6 measured
LegalBench (Vals AI)Not measured84.7%Only Kimi K2.6 measured
CaseLaw (Vals AI)Not measured61.2%Only Kimi K2.6 measured
CorpFin (Vals AI)Not measured66.7%Only Kimi K2.6 measured
TaxEval (Vals AI)Not measured74.7%Only Kimi K2.6 measured
MortgageTax (Vals AI)Not measured65.8%Only Kimi K2.6 measured
MedCode (Vals AI)Not measured40.1%Only Kimi K2.6 measured
MMLU Pro (Artificial Analysis run)84.9%Not measuredOnly R1 0528 measured
SimpleQA VerifiedNot measured34.9%Only Kimi K2.6 measured
LMArena Text: science14301468Kimi K2.6
LMArena Text: medicine and healthcare14451457Kimi K2.6
LMArena Text: legal and government14191462Kimi K2.6
LMArena Text: business and finance14021445Kimi K2.6
Neither model has a result on the other 4 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index07
Web design benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
Design Arena: websites11491269Kimi K2.6
Design Arena: UI components11021266Kimi K2.6
Design Arena: game dev10981251Kimi K2.6
Design Arena: data viz11821249Kimi K2.6
Design Arena: 3D11111268Kimi K2.6
Design Arena: all code categories11391272Kimi K2.6
Design Arena: SVG10381181Kimi K2.6
Design Arena: ASCII artNot measured1164Only Kimi K2.6 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index019
General benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
Public Benefits Bench (Vals AI)Not measured56.6%Only Kimi K2.6 measured
SAGE (Vals AI)Not measured50.2%Only Kimi K2.6 measured
MedScribe (Vals AI)Not measured78.2%Only Kimi K2.6 measured
Vals Multimodal IndexNot measured56.4%Only Kimi K2.6 measured
IFBench39.6%76.0%Kimi K2.6
Long context reasoning (AA-LCR)55.7%81.0%Kimi K2.6
DTBenchNot measured90.9%Only Kimi K2.6 measured
LMCANot measured37.3%Only Kimi K2.6 measured
Fiction.LiveBench75.0%Not measuredOnly R1 0528 measured
Creative writing (Lech Mazur)81.9%Not measuredOnly R1 0528 measured
Furniture assemblyNot measured21.7%Only Kimi K2.6 measured
ExploitBenchNot measured18.4%Only Kimi K2.6 measured
LMArena Text14281455Kimi K2.6
LMArena Text: instruction following13821451Kimi K2.6
LMArena Text: creative writing14051434Kimi K2.6
LMArena VisionNot measured1282Only Kimi K2.6 measured
LMArena Text: English14371460Kimi K2.6
LMArena Text: non-English14121446Kimi K2.6
LMArena Text: Chinese14421520Kimi K2.6
LMArena Text: German14041451Kimi K2.6
LMArena Text: Japanese13911443Kimi K2.6
LMArena Text: Korean13601427Kimi K2.6
LMArena Text: French14171471Kimi K2.6
LMArena Text: Spanish14111464Kimi K2.6
LMArena Text: Russian14231446Kimi K2.6
LMArena Text: Polish14281438Kimi K2.6
LMArena Text: multi-turn14051453Kimi K2.6
LMArena Text: longer queries13911468Kimi K2.6
LMArena Text: writing and language14021439Kimi K2.6
LMArena Text: entertainment and media14001428Kimi K2.6
LMArena Vision: EnglishNot measured1287Only Kimi K2.6 measured
LMArena Vision: ChineseNot measured1346Only Kimi K2.6 measured
LMArena Vision: reading textNot measured1291Only Kimi K2.6 measured
LMArena Vision: humorNot measured1280Only Kimi K2.6 measured
LMArena Vision: creative writingNot measured1273Only Kimi K2.6 measured
LMArena DocumentNot measured1451Only Kimi K2.6 measured
Neither model has a result on the other 10 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for R1 0528 and Kimi K2.6
BenchmarkR1 0528Kimi K2.6Leader
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

R1 0528$0.0016Fits in one request
Kimi K2.6$0.0024Fits in one request

R1 0528 costs less

Repository review

50K input + 3K output tokens

R1 0528$0.031Fits in one request
Kimi K2.6$0.043Fits in one request

R1 0528 costs less

Agent loop

200K input + 10K output tokens

R1 0528$0.121Exceeds the context window
Kimi K2.6$0.164Fits in one request

R1 0528 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 R1 0528 and Kimi K2.6
SpecificationDeepSeek R1 0528MoonshotAI Kimi K2.6
MakerDeepSeekMoonshot AI
WeightsOpen weightsOpen weights
ReleasedMay 28, 2025April 20, 2026
Context window164K262K
Input $/Mtok$0.50$0.65
Output $/Mtok$2.15$3.41
Coding index71.444.2
Independent measurements behind it11
Cost per solved taskNot computable$0.35
SourceOpenRouter listingOpenRouter listing

Questions

Is R1 0528 better than Kimi K2.6 for coding?

Pick R1 0528 for coding: it scores 71.4 on the Vibe Coding Index against 44.2 for Kimi K2.6. Pick Kimi K2.6 when the context window is larger, 262K against 164K tokens, or when what matters is Terminal-Bench Hard (Artificial Analysis run) or WeirdML, where it leads.

Which is cheaper, R1 0528 or Kimi K2.6?

R1 0528 costs $0.50 per million input tokens and $2.15 per million output tokens; Kimi K2.6 costs $0.65 and $3.41. Cost per solved task is known for Kimi K2.6 only.

Which has the bigger context window, R1 0528 or Kimi K2.6?

Kimi K2.6, with 262K tokens against 164K.

How many benchmarks is the R1 0528 vs Kimi K2.6 comparison based on?

46 benchmarks have a result for both models as of October 21, 2026. R1 0528's coding index rests on 1 independent benchmark and Kimi K2.6's on 1. Where only one model has a result, the page says so instead of naming a winner.

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