head-to-head

Anthropic: Claude Sonnet 5 vs Anthropic: Claude Sonnet Latest

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

Anthropic: Claude Sonnet 5 Anthropic: Claude Sonnet Latest
Vendoranthropic~anthropic
Quality Score100100
Benchmark Score63.9-
Input Price$2.00/M$2.00/M
Output Price$10.00/M$10.00/M
Context Window1,000,0001,000,000
Max Output128,000128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index63.0-

Who wins by task?

TaskAnthropic: Claude Sonnet 5Anthropic: Claude Sonnet Latest
SQL Generation 140 132
Code Review 144 132
Code Completion 118 117
Code Refactoring 146 136
Bug Fixing 148 136
Unit Test Generation 131 124
Code Documentation 135 129
Regex Writing 123 117
CI/CD Pipelines 127 120
Frontend Component Design 129 122
Data Analysis 133 124
CSV / Spreadsheet Cleanup 135 132
ETL Scripting 136 128
OCR / Document Parsing 134 131
Table Extraction from PDFs 134 131
Long-Document Summarization 146 136
Short-Form Summarization 116 113
Blog Post Writing 128 120

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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