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Comparison of Anthropic: Claude Sonnet 5.5
1 modelanthropicAnthropic: Claude Sonnet 5.5Remove ×
What’s differentTuned for quick iteration on scoped fixes and documents; Anthropic favors Opus 5.5 for open-ended work needing sustained judgment.
DateSep 28, 2026Released
Listed rate$2.00 in / $10.00 out/ 1M tokensAmazon Bedrock · via OpenRouter · all routes ↗amazon-bedrock
Provider endpoints11 endpoints →
AA Intelligence ↗4.3.256 ↗Effort: max · Max, Default FallbackIndependent result
AA-Briefcase ↗1.11,817.26 ↗Effort: max · Max, Default FallbackIndependent result
GDPval-AA ↗2.11,837.82 ↗Effort: max · Max, Default FallbackIndependent result
AutomationBench-AA ↗AA Index 4.3.2 collection71.77% ↗Effort: max · Max, Default FallbackIndependent result
Terminal-Bench 4.0 · AA ↗63.64% ↗Effort: max · Max, Default FallbackHarness unreportedIndependent result
SciCode ↗AA Index 4.3.2 collection61% ↗AA · Under reviewEffort: max · Max, Default FallbackIndependent result
Humanity’s Last Exam ↗AA Index 4.3.2 collection54.96% ↗Effort: max · Max, Default FallbackIndependent result
GDP.pdf ↗AA Index 4.3.2 collection25.8% ↗Effort: max · Max, Default FallbackIndependent result
CritPt ↗AA Index 4.3.2 collection31.43% ↗AA · Under reviewEffort: max · Max, Default FallbackIndependent result
AA-Omniscience ↗AA Index 4.3.2 collection32.3 ↗Effort: max · Max, Default FallbackIndependent result
AA-LCR ↗1.182.67% ↗Effort: max · Max, Default FallbackIndependent result
LiveBench ↗2.0 · 2026-10-14 (dataset 2026-09-02)82.46% ↗Effort: max · single run · equal mean of 7 suitesIndependent result
LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02)85% ↗Effort: max · single runIndependent result
LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02)83.6% ↗Effort: max · single runIndependent result
LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02)84% ↗Effort: max · single runIndependent result
LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02)94.7% ↗Effort: max · single runIndependent result
LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02)78.8% ↗Effort: max · single runIndependent result
LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02)59.5% ↗Effort: max · single runIndependent result
LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02)91.6% ↗Effort: max · single runIndependent result
Context window1M
Max output128K
Parameters—
Tool callingSupported
Structured outputSupported
Image inputSupported
ReasoningSupported
Prompt cachingSupported

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