Introducing Claude Sonnet 5.5

Benchmark Model Rank Results
chart-question-answering-on-chartographyClaude Sonnet 5.5 (with tools, max effort)#1Pass@1: 0.902
code-generation-on-terminal-bench-4-0Claude Sonnet 5.5 (Claude Code)#1Accuracy: 70.6
medical-question-answering-on-healthbench-opus-4-8-grader-length-adjustedClaude Sonnet 5.5 (max effort)#1Score: 65.4
medical-question-answering-on-healthbench-professionalClaude Sonnet 5.5#1Score: 69.2
agents-on-automationbench-private-v1-0-6Claude Sonnet 5.5 (max effort, with fallbacks) (Zapier AutomationBench)#2Success Rate: 44.7
agents-on-terminal-bench-science-0-1Claude Sonnet 5.5 (Claude Code)#2Accuracy: 59.9
code-generation-on-programbench-golden-166-no-time-limitClaude Sonnet 5.5 (max effort) (mini-swe-agent)#2Average Test Pass Rate: 79.7
code-generation-on-swe-bench-multimodalClaude Sonnet 5.5 (max effort)#2Accuracy: 54.3
code-generation-on-swe-bench-proClaude Sonnet 5.5#2Resolved: 81.3
computer-use-agents-on-osworld-2-1-108-tasksClaude Sonnet 5.5 (max effort)#2Partial: 80.1Binary: 43.5
multi-task-language-understanding-on-global-mmluClaude Sonnet 5.5 (max effort)#2Accuracy: 92.1
multi-task-language-understanding-on-miluClaude Sonnet 5.5 (max effort)#2Accuracy: 91.6
question-answering-on-officeqa-pro-preselected-textClaude Sonnet 5.5 (max effort)#2Accuracy: 65.6
code-generation-on-swe-bench-multilingualClaude Sonnet 5.5#3Accuracy: 90.3
agents-on-toolathlon-verified-108-tasksClaude Sonnet 5.5#4Pass@1: 0.778
code-generation-on-deepsweClaude Sonnet 5.5 (max effort)#9Pass@1: 0.71