Claude Sonnet 5.5 Low

Released2026-09-28
Price per 1M$2.00 in · $10.00 out
Overall score57.2 (early, few results)
Context window1,000,000 tokens
ProviderAnthropic
WeightsProprietary
ConfigurationLow

Scores

DimensionScoreRankBenchmarks
Overall: Balanced 57.2 6
Overall: Coding 57.7 6
Overall: Reasoning 55.9 4
Overall: Agentic work 57.2 6
Overall: Frontend 58.0 2
Coding 58.0 2
Reasoning 55.9 4
Value vs price+3.0

Buzz

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

Evidence

Coding 58.0 ±1.5

BenchmarkResultSourceDate
CursorBench 35.8% Epoch AI 2026-11-11
SciCode 49.1% Epoch AI 2026-11-11

Reasoning 55.9 ±2.4

BenchmarkResultSourceDate
CritPt 11.4% Epoch AI 2026-11-11
ARC-AGI-2 24.0% Epoch AI 2026-11-11
ARC-AGI-1 (ARC Prize verified) 67.0% ARC Prize 2026-11-11
ARC-AGI-1 67.0% Epoch AI 2026-11-11
ARC-AGI-2 (ARC Prize verified) 24.0% ARC Prize 2026-11-11
ARC-AGI-3 0.6% ARC Prize 2026-11-11

Results not used in the score

BenchmarkResultSourceWhy not used
ARC-AGI-3 0.4% ARC Prize Lower duplicate run on the same benchmark

Names matched to this model

claude-sonnet-5-5-low

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