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Kimi K2.6 vs Kimi K3

Updated October 2, 2026. Rank says Kimi K3 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

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Decision reading

Kimi K3 has the higher public point estimate, 72.14 versus 60.2. Their conditional score ranges overlap. These ranges do not establish rank confidence. 15 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
Moonshot AI logo

Moonshot AI

60.2/100

Estimated · Public rank #51

Conditional range 50.5–69.9

Model B
Moonshot AI logo

Moonshot AI

72.14/100

Supported · Public rank #15

90% interval 68.8–75.5

Shared results
15
Kimi K2.6 only
22
Kimi K3 only
33
Like-for-like categories
3 / 8
Estimated: Kimi K2.6 · Supported: Kimi K3. Conditional ranges do not establish rank confidence.How the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

  • Coding work

    Code generation, repair, and software-engineering tasks

    Kimi K3

    Kimi K3 has the higher public coding point estimate, 61.4 to 46, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    Kimi K3

    Kimi K3 has the higher public agentic point estimate, 68.1 to 43.4, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    Kimi K3

    Kimi K3 has the larger documented context window.

    Confidence: documented
Show secondary and unsupported calls
  • Chat turn cost

    1K fresh input + 500 output tokens

    Kimi K2.6

    Kimi K2.6 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Kimi K2.6

    Kimi K2.6 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Repository review cost

    50K fresh input + 3K output tokens

    Kimi K2.6

    Kimi K2.6 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

46.0Kimi K2.661.4Kimi K3

Like-for-like · BenchAlign v5.8

Kimi K3 has the higher coding point estimate. Conditional score ranges do not establish rank confidence.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

What is actually comparable

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

1 category rests on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

Bars run 0–100 on each benchmark’s normalized display scale

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Agentic

Like-for-like
Kimi K2.6
43.4
Supported · #54/119
Kimi K3
68.1
Supported · #8/119
Basis
BenchAlign v5.8 lane · 12 vs 12 public rows
Reading
Kimi K3 leads

Coding

Like-for-like
Kimi K2.6
46.0
Supported · #51/144
Kimi K3
61.4
Supported · #18/144
Basis
BenchAlign v5.8 lane · 10 vs 14 public rows
Reading
Kimi K3 leads · intervals overlap

Knowledge

Like-for-like
Kimi K2.6
58.3
Supported · #46/171
Kimi K3
67.9
Supported · #18/171
Basis
BenchAlign v5.8 lane · 5 vs 6 public rows
Reading
Kimi K3 leads · intervals overlap

Multimodal

Directional only
Kimi K2.6
64.9
#26/49
Kimi K3
89.4
#1/49
Basis
Provisional lane · 2 vs 3 weighted rows
Reading
Directional only

Reasoning

Not comparable
Kimi K2.6
Not ranked
Kimi K3
65.8
#18/27
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Not comparable

Multilingual

Not comparable
Kimi K2.6
Not ranked
Kimi K3
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Instruction following

Not comparable
Kimi K2.6
Not ranked
Kimi K3
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
Kimi K2.6
71.0
#1/7
Kimi K3
Not ranked
Basis
Provisional lane · 4 vs 0 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Supported evidence per lane · bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

Kimi K2.6
$0.00295
Fits in one request
Kimi K3
$0.0105
Fits in one request

Kimi K2.6 has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

Kimi K2.6
$0.0595
Fits in one request
Kimi K3
$0.195
Fits in one request

Kimi K2.6 has the lower modeled cost

Costs use the listed standard API rates.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

Kimi K2.6
$0.091
Fits in one request
Kimi K3
$0.27
Fits in one request

Kimi K2.6 has the lower modeled cost

Costs use the listed standard API rates.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Context window

Maximum documented context; output-token limits may be lower.

Kimi K2.6

256K

Kimi K3

1.05M

API model ID

Kimi K2.6

Not sourced

Kimi K3

Not sourced

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

Kimi K2.6

$0.16 per 1M cached input tokens

Kimi K3

$0.3 per 1M cached input tokens

Documented inputs

Kimi K2.6

Not sourced

Kimi K3

Not sourced

Documented outputs

Kimi K2.6

Not sourced

Kimi K3

Not sourced

Provider availability

Kimi K2.6

Not sourced

Kimi K3

Not sourced

Reasoning profile

Kimi K2.6

Reasoning

Kimi K3

Reasoning

Weight access

Kimi K2.6

Open Weight

Kimi K3

Pending

License

Kimi K2.6

Open Weight

Kimi K3

Pending

Release date

Kimi K2.6

2026-04-20

Kimi K3

2026-07-16

If you are considering the documented upgrade path

Deployment change
Both entries list Moonshot AI as the provider. Confirm endpoint, model ID, limits, and feature support before switching.
Quality signal
Kimi K3 has the higher public point estimate, 72.14 versus 60.2. Their conditional score ranges overlap. These ranges do not establish rank confidence.
Workload cost
Repository review: $0.0595 vs $0.195. Cache-heavy agent loop: $0.091 vs $0.27.
Context tradeoff
Kimi K3 has the larger documented window (1.05M).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, Kimi K2.6 or Kimi K3?

Kimi K3 has the higher public point estimate, 72.14 versus 60.2. Their conditional score ranges overlap. These ranges do not establish rank confidence. The page therefore keeps the decision tied to the specific documented workload.

Which is better for coding, Kimi K2.6 or Kimi K3?

Kimi K3 has the higher public coding point estimate, 61.4 to 46, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which is better for agentic tasks, Kimi K2.6 or Kimi K3?

Kimi K3 has the higher public agentic tasks point estimate, 68.1 to 43.4, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which costs less, Kimi K2.6 or Kimi K3?

For the stated presets, chat costs $0.00295 on Kimi K2.6 and $0.0105 on Kimi K3; repository review costs $0.0595 and $0.195; the cache-heavy agent loop costs $0.091 and $0.27. Costs use the listed standard API rates.

Which has the larger context window, Kimi K2.6 or Kimi K3?

Kimi K3 has the larger documented context window: 1.05M, compared with 256K.

Self-host vs API cost

Estimates at 50,000 req/day · 1000 tokens/req average.

Kimi K2.6
API / mo$3,713
Self-host / mo$18,221
Break-even326M/day
Kimi K3
API / mo$0
Self-host / moNot listed
Break-even—
Proprietary model — self-hosting not applicable.
Model the full break-even

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence70 rows

Agentic

  • Terminal-Bench 2.0

    Kimi K2.666.7%
    Source
    Kimi K3—

    Not directly comparable

  • BrowseComp

    Kimi K2.683.2%
    Source
    Kimi K391.2%
    Source

    Kimi K3 leads this result

  • OSWorld-Verified

    Kimi K2.673.1%
    Source
    Kimi K3—

    Not directly comparable

  • Toolathlon

    Kimi K2.650%
    Source
    Kimi K3—

    Not directly comparable

  • MCP Atlas

    Kimi K2.655.9%
    Source
    Kimi K384.2%
    Source

    Kimi K3 leads this result

  • Claw-Eval

    Kimi K2.662.3%
    Source
    Kimi K3—

    Not directly comparable

  • DeepSearchQA

    Kimi K2.692.5%
    Source
    Kimi K395.0%
    Source

    Kimi K3 leads this result

  • WideResearch

    Kimi K2.680.8%
    Source
    Kimi K3—

    Not directly comparable

  • Gert Labs

    Kimi K2.656.82%
    Source
    Kimi K3—

    Not directly comparable

  • ResearchClawBench

    Kimi K2.618.0%
    Source
    Kimi K3—

    Not directly comparable

  • OSWorld 2.0

    Kimi K2.64.6%
    Source
    Kimi K3—

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    Kimi K2.653.6%
    Source
    Kimi K380.9%
    Source

    Kimi K3 leads this result

  • Terminal-Bench 2.1

    Kimi K2.6—
    Kimi K388.3%
    Source

    Not directly comparable

  • Toolathlon-Verified

    Kimi K2.6—
    Kimi K373.2%
    Source

    Not directly comparable

  • AutomationBench

    Kimi K2.6—
    Kimi K330.8%
    Source

    Not directly comparable

  • JobBench

    Kimi K2.6—
    Kimi K352.9%
    Source

    Not directly comparable

  • APEX-Agents

    Kimi K2.6—
    Kimi K337.6%
    Source

    Not directly comparable

  • SpreadsheetBench 2

    Kimi K2.6—
    Kimi K334.8%
    Source

    Not directly comparable

  • DECK-Bench

    Kimi K2.6—
    Kimi K373.5%
    Source

    Not directly comparable

  • ApprenticeBench

    Kimi K2.6—
    Kimi K318%
    Source

    Not directly comparable

Coding

  • SWE-bench Verified

    Kimi K2.680.2%
    Source
    Kimi K3—

    Not directly comparable

  • LiveCodeBench v6

    Kimi K2.689.6%
    Source
    Kimi K3—

    Not directly comparable

  • SWE-bench Pro

    Kimi K2.658.6%
    Source
    Kimi K3—

    Not directly comparable

  • SWE Multilingual

    Kimi K2.676.7%
    Source
    Kimi K3—

    Not directly comparable

  • SciCode

    Kimi K2.652.2%
    Source
    Kimi K3—

    Not directly comparable

  • Terminal-Bench 2.0

    Kimi K2.666.7%
    Source
    Kimi K3—

    Not directly comparable

  • Vibe Code Bench

    Kimi K2.637.89%
    Source
    Kimi K3—

    Not directly comparable

  • cursorBench31

    Kimi K2.647.6%
    Source
    Kimi K3—

    Not directly comparable

  • LiveCodeBench (Vals)

    Kimi K2.686.8%
    Source
    Kimi K387.2%
    Source

    Kimi K3 leads this result

  • SWE-bench (Vals)

    Kimi K2.676.2%
    Source
    Kimi K393.4%
    Source

    Kimi K3 leads this result

  • DeepSWE

    Kimi K2.6—
    Kimi K367.5%
    Source

    Not directly comparable

  • CursorBench 3.2

    Kimi K2.6—
    Kimi K360.8%
    Source

    Not directly comparable

  • FrontierSWE

    Kimi K2.6—
    Kimi K381.2%
    Source

    Not directly comparable

  • ProgramBench

    Kimi K2.6—
    Kimi K377.8%
    Source

    Not directly comparable

  • Kimi Code Bench v2

    Kimi K2.6—
    Kimi K372.9%
    Source

    Not directly comparable

  • sweMarathon

    Kimi K2.6—
    Kimi K342%
    Source

    Not directly comparable

  • PostTrain Bench

    Kimi K2.6—
    Kimi K336.6%
    Source

    Not directly comparable

  • MLS-Bench Lite

    Kimi K2.6—
    Kimi K348.3%
    Source

    Not directly comparable

  • VulcanBench v3

    Kimi K2.6—
    Kimi K373.7%
    Source

    Not directly comparable

  • OpenHarmony Bench

    Kimi K2.6—
    Kimi K357.3%
    Source

    Not directly comparable

  • FrontierSWE v2

    Kimi K2.6—
    Kimi K325.9%
    Source

    Not directly comparable

  • PostTrainBench v1.1

    Kimi K2.6—
    Kimi K332.0%
    Source

    Not directly comparable

Reasoning

  • ARC-AGI-1

    Kimi K2.6—
    Kimi K394.50%
    Source

    Not directly comparable

  • ARC-AGI-2

    Kimi K2.6—
    Kimi K360.4%
    Source

    Not directly comparable

Multimodal

  • MMMU-Pro

    Kimi K2.679.4%
    Source
    Kimi K381.6%
    Source

    Kimi K3 leads this result

  • MMMU-Pro w/ Python

    Kimi K2.680.1%
    Source
    Kimi K383.4%
    Source

    Kimi K3 leads this result

  • CharXiv

    Kimi K2.680.4%
    Source
    Kimi K391.3%
    Source

    Kimi K3 leads this result

  • MathVision

    Kimi K2.687.4%
    Source
    Kimi K394.3%
    Source

    Kimi K3 leads this result

  • V*

    Kimi K2.696.9%
    Source
    Kimi K3—

    Not directly comparable

  • OfficeQA Pro

    Kimi K2.6—
    Kimi K363.3%
    Source

    Not directly comparable

  • CharXiv w/o tools

    Kimi K2.6—
    Kimi K384.8%
    Source

    Not directly comparable

  • MathVision w/ Python

    Kimi K2.6—
    Kimi K397.8%
    Source

    Not directly comparable

  • BabyVision w/ Python

    Kimi K2.6—
    Kimi K385.7%
    Source

    Not directly comparable

  • ZeroBench

    Kimi K2.6—
    Kimi K323.0%
    Source

    Not directly comparable

  • ZeroBench w/ Python

    Kimi K2.6—
    Kimi K341.0%
    Source

    Not directly comparable

  • WorldVQA ForceAnswer

    Kimi K2.6—
    Kimi K351.0%
    Source

    Not directly comparable

  • OmniDocBench

    Kimi K2.6—
    Kimi K391.1%
    Source

    Not directly comparable

  • PerceptionBench

    Kimi K2.6—
    Kimi K358.5%
    Source

    Not directly comparable

Knowledge

  • GPQA

    Kimi K2.690.5%
    Source
    Kimi K393.5%
    Source

    Kimi K3 leads this result

  • GPQA-D

    Kimi K2.690.5%
    Source
    Kimi K393.5%
    Source

    Kimi K3 leads this result

  • HLE

    Kimi K2.634.7%
    Source
    Kimi K356%
    Source

    Kimi K3 leads this result

  • GPQA Diamond (Vals)

    Kimi K2.689.1%
    Source
    Kimi K392.9%
    Source

    Kimi K3 leads this result

  • MMLU-Pro (Vals)

    Kimi K2.687.6%
    Source
    Kimi K388.0%
    Source

    Kimi K3 leads this result

  • HLE w/o tools

    Kimi K2.6—
    Kimi K343.5%
    Source

    Not directly comparable

Instruction following

  • Gray Swan IPI (15 attempts)

    Kimi K2.6—
    Kimi K352.7%
    Source

    Not directly comparable

Math

  • AIME26

    Kimi K2.696.4%
    Source
    Kimi K3—

    Not directly comparable

  • HMMT Feb 2026

    Kimi K2.692.7%
    Source
    Kimi K3—

    Not directly comparable

  • MMAnswerBench

    Kimi K2.686.0%
    Source
    Kimi K3—

    Not directly comparable

  • FrontierMath v2 (Tiers 1-3)

    Kimi K2.638.966%
    Source
    Kimi K3—

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    Kimi K2.614.580%
    Source
    Kimi K3—

    Not directly comparable

70 public results · 15 shared

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Last updated October 2, 2026