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Anthropic: Claude Sonnet 5 vs Mistral: Mistral Medium 3.5

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

Anthropic: Claude Sonnet 5 Mistral: Mistral Medium 3.5
Vendoranthropicmistralai
Quality Score100100
Benchmark Score63.919.3
Input Price$2.00/M$1.50/M
Output Price$10.00/M$7.50/M
Context Window1,000,000262,144
Max Output128,000209,715
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index63.023.4

Who wins by task?

TaskAnthropic: Claude Sonnet 5Mistral: Mistral Medium 3.5
SQL Generation 140 133
Code Review 144 130
Code Completion 118 115
Code Refactoring 146 131
Bug Fixing 148 134
Unit Test Generation 131 124
Code Documentation 135 126
Regex Writing 123 120
CI/CD Pipelines 127 120
Frontend Component Design 129 124
Data Analysis 133 127
CSV / Spreadsheet Cleanup 135 128
ETL Scripting 136 125
JSON Extraction 121 122
Bulk Data Labeling 118 119
OCR / Document Parsing 134 129
Table Extraction from PDFs 134 129
Long-Document Summarization 146 132
Short-Form Summarization 116 115
Blog Post Writing 128 121

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

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