Claude Sonnet 5.5 Extra High

Released2026-09-28
Price per 1M$2.00 in · $10.00 out
Overall score62.9 · rank 50
Context window1,000,000 tokens
ProviderAnthropic
WeightsProprietary
ConfigurationExtra High

Scores

DimensionScoreRankBenchmarks
Overall: Balanced 62.9 50 12
Overall: Coding 64.6 23 9
Overall: Reasoning 64.3 49 5
Overall: Agentic work 64.2 24 8
Overall: Frontend 65.7 12 6
Coding 63.5 36 4
Reasoning 65.5 37 4
Knowledge 61.7 21 1
Frontend 68.3 3 1
General 58.7 78 1
Multimodal 57.3 56 1
Value vs price+8.763

Buzz

Posts on XAbout 176 a day
Mood44% positive, 0% negative
Hacker News31 mentions this week
Checked2026-11-11

Evidence

Coding 63.5 ±1.4

BenchmarkResultSourceDate
CursorBench 53.1% Epoch AI 2026-11-11
FrontierCode 52.1% Epoch AI 2026-11-11
WeirdML v3 19.9% Epoch AI 2026-11-11
SciCode 57.3% Epoch AI 2026-11-11

Reasoning 65.5 ±2.4

BenchmarkResultSourceDate
CritPt 31.1% Epoch AI 2026-11-11
ARC-AGI-2 83.9% Epoch AI 2026-11-11
ARC-AGI-1 (ARC Prize verified) 96.5% ARC Prize 2026-11-11
ARC-AGI-1 96.5% Epoch AI 2026-11-11
ARC-AGI-2 (ARC Prize verified) 83.9% ARC Prize 2026-11-11
ARC-AGI-3 72.4% ARC Prize 2026-11-11

Knowledge 61.7 ±1.3

BenchmarkResultSourceDate
Humanity's Last Exam 46.1% Epoch AI 2026-11-11

Frontend 68.3 ±3.0

BenchmarkResultSourceDate
LMArena WebDev 1,773 LMArena 2026-11-10

General 58.7 ±4.1

BenchmarkResultSourceDate
LMArena Text 1,472 LMArena 2026-11-09

Multimodal 57.3 ±4.1

BenchmarkResultSourceDate
LMArena Vision 1,263 LMArena 2026-11-09

Results not used in the score

BenchmarkResultSourceWhy not used
ARC-AGI-3 24.3% ARC Prize Lower duplicate run on the same benchmark

Names matched to this model

claude-sonnet-5-5-xhigh

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