Claude Sonnet 4.6

Anthropic
Claude Sonnet 4.6 launch post cover

Cost/1M tokens

input
$3.00
cached
$0.30
output
$15.00
cache write
$3.75
Context
1Mtokens
Released
8mo ago

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

#27 of 28

Arena Text

Best Arena rating per model · Higher is better

Arena #48

  1. 1511
    Muse WonderSimilar price
  2. 1487
  3. 1475
    GPT-5.4Similar price
  4. 1473
    GPT-5.5 InstantNearby rank
  5. 1472
  6. 1472
    Claude Sonnet 4.6
  7. 1468
    GPT-5.6 TerraNearby rank
  8. 1467
    ERNIE 5.1Nearby rank
  9. 1456
  10. 1354
    Command ASimilar price

+16 vs Claude Sonnet 4.5 (predecessor) · Ahead of 1 of 4 similarly priced models

Arena WebDev

Best Arena rating per model · Higher is better

Arena #60

  1. 1658
    Kimi K3Similar price
  2. 1649
    Muse WonderSimilar price
  3. 1534
    Muse Spark 1.2Nearby rank
  4. 1526
    Muse Spark OpenNearby rank
  5. 1522
    Claude Sonnet 4.6
  6. 1520
    GPT-5.6 TerraNearby rank
  7. 1519
    GPT-5.6 LunaNearby rank
  8. 1462
    GPT-5.4Similar price
  9. 1446
  10. 1393

+129 vs Claude Sonnet 4.5 (predecessor) · Ahead of 2 of 4 similarly priced models

Arena Vision

Best Arena rating per model · Higher is better

Arena #34

  1. 1282
    GPT-5.4Similar price
  2. 1280
    Grok 4.5Similar price
  3. 1280
  4. 1278
    GPT-5.2 ChatNearby rank
  5. 1277
    GPT-5.5 InstantNearby rank
  6. 1275
    Claude Sonnet 4.6
  7. 1272
    GLM 5.3 FlashNearby rank
  8. 1266
    GPT-5.6 TerraNearby rank
  9. 1206
    Claude Sonnet 4Earlier version
  10. 1199
    Mistral Medium 3.5Similar price

+69 vs Claude Sonnet 4 (earlier version) · Ahead of 1 of 4 similarly priced models

Arena Search

Best Arena rating per model · Higher is better

Not ranked on Arena Search yet

Arena Document

Best Arena rating per model · Higher is better

Arena #13

  1. 1481
    GPT-5.5Nearby rank
  2. 1480
    Muse Spark 1.1Nearby rank
  3. 1478
    Claude Sonnet 4.6
  4. 1474
    GPT-5.6 TerraNearby rank
  5. 1474
    Muse Spark 1.3Nearby rank
  6. 1471
    GPT-5.4Similar price
  7. 1466
    Grok 4.5Similar price
  8. 1459
  9. 1448
  10. 1425
    GPT-5.2Similar price

+30 vs Claude Sonnet 4.5 (predecessor) · Ahead of 2 of 4 similarly priced models

Agent Arena

Best IPS score per model · Higher is better

Not ranked on Agent Arena yet

ARC-AGI-2

Best score per model · Higher is better

#35 of 85

  1. 77.1%
  2. 74.0%
    GPT-5.4Similar price
  3. 67.1%
    Grok 4.6Similar price
  4. 61.3%
    Claude Haiku 5.5Nearby rank
  5. 61.3%
  6. 60.4%
    Claude Sonnet 4.6
  7. 60.4%
    Gemini 3.6 FlashNearby rank
  8. 60.4%
    Kimi K3Similar price
  9. 13.6%

+46.8 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 0 of 4 similarly priced models

FrontierMath-2025-02-28-Private

Best score per model · Higher is better

#14 of 58

  1. 47.6%
    GPT-5.4Similar price
  2. 40.7%
    GPT-5.2Similar price
  3. 36.9%
  4. 33.4%
    GLM 5.1Nearby rank
  5. 32.4%
    GPT-5Nearby rank
  6. 32.4%
    Claude Sonnet 4.6
  7. 31.0%
    GPT-5.1Nearby rank
  8. 28.3%
    GPT-5.4 MiniNearby rank
  9. 15.2%
  10. 0.3%
    GPT-4o (2024-08-06)Similar price

+17.2 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 1 of 4 similarly priced models

FrontierMath-Tier-4-2025-07-01-Private

Best score per model · Higher is better

#15 of 46

  1. 27.1%
    GPT-5.4Similar price
  2. 18.8%
    GPT-5.2Similar price
  3. 16.7%
  4. 12.5%
    GLM 5.1Nearby rank
  5. 8.3%
    Qwen3.6 PlusNearby rank
  6. 8.3%
    Claude Sonnet 4.6
  7. 6.3%
    GPT-5 MiniNearby rank
  8. 6.3%
    GPT-5.4 NanoNearby rank
  9. 4.2%
  10. 2.1%
    o3Similar price

+4.1 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 1 of 4 similarly priced models

GPQA diamond

Best score per model · Higher is better

#59 of 161

  1. 94.4%
  2. 94.0%
    Grok 4.6Similar price
  3. 93.3%
    GPT-5.4Similar price
  4. 93.1%
    Kimi K3Similar price
  5. 87.6%
    GPT-5.1Nearby rank
  6. 87.4%
  7. 87.4%
    Claude Sonnet 4.6
  8. 86.9%
    GPT-5.4 MiniNearby rank
  9. 86.4%
  10. 82.3%

+5.1 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 0 of 4 similarly priced models

OSWorld

Best score per model · Higher is better

#1 of 10

  1. 72.1%
    Claude Sonnet 4.6
  2. 66.3%
    Claude Opus 4.5Similar price
  3. 63.3%
    Kimi K2.5Nearby rank
  4. 62.9%
  5. 23.0%
    o3Similar price

+9.2 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 2 of 2 similarly priced models

OSWorld 2.0

Best score per model · Higher is better

#6 of 9

  1. 31.4%
    Claude Opus 5Similar price
  2. 27.3%
    GPT-5.6 SolSimilar price
  3. 18.5%
    Claude Opus 4.8Similar price
  4. 13.9%
    Claude Opus 4.7Nearby rank
  5. 13.0%
    GPT-5.5Similar price
  6. 9.3%
    Claude Sonnet 4.6
  7. 4.6%
    MiniMax M3Nearby rank
  8. 4.6%
    Kimi K2.6Nearby rank

Ahead of 0 of 4 similarly priced models

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#75 of 158

  1. 100.0%
    Qwen3.8 Max (0902)Similar price
  2. 97.8%
    GPT-5.4Similar price
  3. 97.2%
    Kimi K3Similar price
  4. 95.6%
  5. 86.4%
    GLM 5.2Nearby rank
  6. 86.1%
    Claude Opus 4.5Nearby rank
  7. 85.8%
    Claude Sonnet 4.6
  8. 84.7%
    Gemini 2.5 ProNearby rank
  9. 84.4%
    GPT-5.5Nearby rank
  10. 77.8%

+8.0 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 0 of 4 similarly priced models

SimpleQA Verified

Best score per model · Higher is better

#56 of 87

  1. 73.5%
  2. 56.0%
    Grok 4.7Similar price
  3. 50.6%
    Kimi K3Similar price
  4. 45.1%
    GPT-5.4Similar price
  5. 37.1%
    GPT-5.2Nearby rank
  6. 36.5%
    Kimi K2.7 CodeNearby rank
  7. 35.5%
    Claude Sonnet 4.6
  8. 34.9%
    Kimi K2.6Nearby rank
  9. 34.3%
    Kimi K2.5Nearby rank
  10. 30.7%

+4.8 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 0 of 4 similarly priced models

SWE-bench Verified

Best score per model · Higher is better

#15 of 35

  1. 76.9%
    GPT-5.4Similar price
  2. 75.6%
  3. 75.4%
  4. 75.2%
    Claude Sonnet 4.6
  5. 74.8%
    GPT-5.3-CodexSimilar price
  6. 74.2%
    GLM 5.1Nearby rank
  7. 73.8%
    GPT-5.2Similar price
  8. 71.3%

+3.9 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 2 of 4 similarly priced models

Terminal Bench

Best score per model · Higher is better

#17 of 49

  1. 81.8%
    GPT-5.4Similar price
  2. 80.2%
  3. 78.4%
    GPT-5.3-CodexSimilar price
  4. 66.5%
    GPT-5.2-CodexSimilar price
  5. 57.8%
    GPT-5.1-CodexNearby rank
  6. 57.3%
    Grok 4.20Nearby rank
  7. 53.4%
    Claude Sonnet 4.6
  8. 52.4%
    GLM 5Nearby rank
  9. 49.6%
    GPT-5Nearby rank
  10. 46.5%

+6.9 pts vs Claude Sonnet 4.5 (predecessor) · Ahead of 0 of 4 similarly priced models

DeepSWE 1.1

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

Official leaderboard
29.9%
pass@1 · highest published configuration
mini-swe-agent · high reasoning
pass@4
56.6%
Average cost / attempt
$5.52
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

OSWorld 2.0

Score by reasoning effort · Higher is better

OTIS Mock AIME 2024-2025

Score by reasoning effort · Higher is better

SimpleQA Verified

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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