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xAI: Grok 4.3 vs Mistral: Mistral Medium 3.5

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-03.

xAI: Grok 4.3 Mistral: Mistral Medium 3.5
Vendorx-aimistralai
Quality Score100100
Benchmark Score58.052.5
Input Price$1.25/M$1.50/M
Output Price$2.50/M$7.50/M
Context Window1,000,000262,144
Max Output--
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index62.049.4
ai_index_agentic39.831.3
ai_index_coding69.777.4

Who wins by task?

TaskxAI: Grok 4.3Mistral: Mistral Medium 3.5
SQL Generation 158 153
Code Review 155 147
Code Completion 120 116
Code Refactoring 155 144
Bug Fixing 164 155
Unit Test Generation 144 140
Code Documentation 139 131
Regex Writing 130 128
CI/CD Pipelines 136 132
Frontend Component Design 138 137
Data Analysis 153 151
CSV / Spreadsheet Cleanup 147 142
ETL Scripting 145 138
JSON Extraction 134 134
Bulk Data Labeling 124 123
OCR / Document Parsing 141 139
Table Extraction from PDFs 141 139
Long-Document Summarization 152 141
Short-Form Summarization 120 119
Blog Post Writing 134 129

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

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