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xAI: Grok Latest vs Anthropic: Claude Sonnet 5

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-10.

xAI: Grok Latest Anthropic: Claude Sonnet 5
Vendor~x-aianthropic
Quality Score100100
Benchmark Score10.992.0
Input Price$2.00/M$2.00/M
Output Price$6.00/M$10.00/M
Context Window500,0001,000,000
Max Output-128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index12.488.0
ai_index_agentic-77.0
ai_index_coding-100.0

Who wins by task?

TaskxAI: Grok LatestAnthropic: Claude Sonnet 5
SQL Generation 134 171
Code Review 134 167
Code Completion 118 119
Code Refactoring 138 164
Bug Fixing 138 180
Unit Test Generation 125 154
Code Documentation 131 141
Regex Writing 119 135
CI/CD Pipelines 121 144
Frontend Component Design 123 146
Data Analysis 125 171
CSV / Spreadsheet Cleanup 133 153
ETL Scripting 129 154
JSON Extraction 122 138
Bulk Data Labeling 119 124
OCR / Document Parsing 131 146
Table Extraction from PDFs 131 146
Long-Document Summarization 139 159
Short-Form Summarization 115 122
Blog Post Writing 122 140

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

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