Kimi K3 launch post cover

Cost/1M tokens

input
$0.192
cached
$0.182
output
$16.00
Context
1Mtokens
Released
3mo ago
Size
2.8Tparameters

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Arena leaderboards and other sourced evaluations appear below; missing scores are not zero.

How it ranks

Against its predecessor, similarly priced models and the models ranked around it.

DeepSWE 1.1

Best pass@1 per model · Higher is better

#8 of 28

Arena Text

Best Arena rating per model · Higher is better

Arena #19

  1. 1526
    Gemini 4 CarbonSimilar price
  2. 1490
    Claude Opus 5Nearby rank
  3. 1489
    Gemini 3.7 FlashNearby rank
  4. 1487
    Kimi K3
  5. 1487
  6. 1486
  7. 1482
    GPT-6.1 SolSimilar price
  8. 1472
    Claude Sonnet 5.5Similar price
  9. 1354
    Command ASimilar price

Ahead of 2 of 4 similarly priced models

Arena WebDev

Best Arena rating per model · Higher is better

Arena #18

  1. 1773
    Claude Sonnet 5.5Similar price
  2. 1768
    Gemini 4 CarbonSimilar price
  3. 1743
    GPT-6.1 SolSimilar price
  4. 1676
    Qwen3.8 Max (0902)Similar price
  5. 1670
    Qwen3.8 MaxNearby rank
  6. 1664
  7. 1658
    Kimi K3
  8. 1655
    Muse Spark 1.3Nearby rank
  9. 1649
    Muse WonderNearby rank

Ahead of 0 of 4 similarly priced models

Arena Vision

Best Arena rating per model · Higher is better

Not ranked on Arena Vision yet

Arena Search

Best Arena rating per model · Higher is better

Not ranked on Arena Search yet

Agent Arena

Best IPS score per model · Higher is better

Arena #28

  1. +0.170
    Gemini 4 CarbonSimilar price
  2. +0.160
    Claude Sonnet 5.5Similar price
  3. +0.125
    GPT-6.1 SolSimilar price
  4. +0.026
    Grok 4.7Similar price
  5. +0.016
    GPT-6 LunaNearby rank
  6. +0.010
    GLM 5.3Nearby rank
  7. +0.006
    Kimi K3
  8. +0.005
    Claude Haiku 5.5Nearby rank
  9. +0.005
    Hy4 previewNearby rank

Ahead of 0 of 4 similarly priced models

ARC-AGI-2

Best score per model · Higher is better

#36 of 85

  1. 94.2%
    Gemini 4 CarbonSimilar price
  2. 94.2%
    GPT-6.1 SolSimilar price
  3. 83.9%
    Claude Sonnet 5.5Similar price
  4. 67.1%
    Grok 4.6Similar price
  5. 60.4%
  6. 60.4%
    Gemini 3.6 FlashNearby rank
  7. 60.4%
    Kimi K3
  8. 59.5%
    GPT-5.6 LunaNearby rank
  9. 59.3%
    GPT-6 LunaNearby rank

Ahead of 0 of 4 similarly priced models

FrontierMath-Tier-4-v2-Private

Best score per model · Higher is better

#28 of 72

  1. 100.0%
    GPT-6.1 SolSimilar price
  2. 95.1%
    Gemini 4 CarbonSimilar price
  3. 80.5%
    Claude Sonnet 5.5Similar price
  4. 46.3%
    Muse Spark 1.3Nearby rank
  5. 46.0%
    GPT-5.2 ProNearby rank
  6. 39.0%
    Kimi K3
  7. 36.6%
    Gemini 3.7 FlashNearby rank
  8. 34.1%
    Qwen3.7 MaxNearby rank
  9. 34.1%
    Qwen3.8 Max (0902)Similar price

Ahead of 1 of 4 similarly priced models

FrontierMath-Tiers-1-3-v2-Private

Best score per model · Higher is better

#26 of 87

  1. 93.7%
    GPT-6.1 SolSimilar price
  2. 90.5%
    Gemini 4 CarbonSimilar price
  3. 88.8%
    Claude Sonnet 5.5Similar price
  4. 74.4%
    Muse Spark 1.3Nearby rank
  5. 74.0%
    GPT-5.2 ProNearby rank
  6. 72.2%
    Kimi K3
  7. 71.6%
    Gemini 3.7 FlashNearby rank
  8. 71.2%
  9. 66.0%
    Grok 4.6Similar price

Ahead of 1 of 4 similarly priced models

GPQA diamond

Best score per model · Higher is better

#21 of 161

  1. 96.5%
    Gemini 4 CarbonSimilar price
  2. 95.6%
    Claude Sonnet 5.5Similar price
  3. 95.4%
    GPT-6.1 SolSimilar price
  4. 94.0%
    Grok 4.6Similar price
  5. 93.3%
    GPT-5.4Nearby rank
  6. 93.2%
  7. 93.1%
    Kimi K3
  8. 92.8%
    Gemini 3.5 FlashNearby rank
  9. 92.7%
    Grok 4.7Nearby rank

Ahead of 0 of 4 similarly priced models

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#32 of 158

  1. 100.0%
    Claude Sonnet 5.5Similar price
  2. 100.0%
    Gemini 4 ArgonSimilar price
  3. 100.0%
    GPT-6 SolSimilar price
  4. 100.0%
    Qwen3.8 Max (0902)Similar price
  5. 97.8%
    Grok 4.5Nearby rank
  6. 97.2%
    Gemini 3.7 FlashNearby rank
  7. 97.2%
    Kimi K3
  8. 96.7%
  9. 96.1%
    Kimi K2.6Nearby rank

Ahead of 0 of 4 similarly priced models

SimpleQA Verified

Best score per model · Higher is better

#29 of 87

  1. 77.7%
    Gemini 4 CarbonSimilar price
  2. 73.9%
    GPT-6.1 SolSimilar price
  3. 56.0%
    Grok 4.7Similar price
  4. 52.0%
  5. 51.7%
    Claude Opus 4.7Nearby rank
  6. 50.6%
    Kimi K3
  7. 50.1%
    GPT-5Nearby rank
  8. 49.4%
    o3Nearby rank
  9. 46.5%
    Claude Sonnet 5.5Similar price

Ahead of 1 of 4 similarly priced models

DeepSWE 1.1

Primary coding-agent benchmark · 113 tasks · Data generated 2026-09-22

Official leaderboard
68.5%
pass@1 · highest published configuration
mini-swe-agent · max reasoning
pass@4
89.4%
Average cost / attempt
$4.65
Benchmark runs
4

pass@1 is the success rate across scored attempts; pass@4 is the share of tasks solved in at least one of four attempts. Costs are reported by DeepSWE for each configuration. These results are not directly comparable to evaluations using different harnesses. Official source JSON.

Reasoning effort

ARC-AGI-2

Score by reasoning effort · Higher is better

GPQA diamond

Score by reasoning effort · Higher is better

OTIS Mock AIME 2024-2025

Score by reasoning effort · Higher is better

All published scores

Benchmark compilation: Epoch AI, Capabilities & benchmarking (CC BY attribution). Scores are converted to percentages and model names matched to the Vertical Tabs catalog. Individual evaluations are credited to their original sources. External results may carry separate licences and evaluation configurations; do not interpret scores from different harnesses as directly comparable.

Arena ratings: Arena (lmarena-ai/leaderboard-dataset), licensed CC BY 4.0. Ratings come from pairwise human votes and are only comparable within one leaderboard; the interval is Arena's 95% confidence interval. Model names are matched to the Vertical Tabs catalog.

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