picksbymodel Get API access →
head-to-head

Anthropic: Claude Sonnet 5 vs xAI: Grok Build 0.1

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-02.

Anthropic: Claude Sonnet 5 xAI: Grok Build 0.1
Vendoranthropicx-ai
Quality Score100100
Benchmark Score92.0-
Input Price$2.00/M$1.00/M
Output Price$10.00/M$2.00/M
Context Window1,000,000256,000
Max Output128,000-
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index88.0-
ai_index_agentic77.0-
ai_index_coding100.0-

Who wins by task?

TaskAnthropic: Claude Sonnet 5xAI: Grok Build 0.1
SQL Generation 171 130
Code Review 167 126
Code Completion 119 116
Code Refactoring 164 127
Bug Fixing 180 130
Unit Test Generation 154 121
Code Documentation 141 125
Regex Writing 135 119
CI/CD Pipelines 144 117
Frontend Component Design 146 122
Data Analysis 171 124
CSV / Spreadsheet Cleanup 153 127
ETL Scripting 154 122
JSON Extraction 138 123
Bulk Data Labeling 124 121
OCR / Document Parsing 146 128
Table Extraction from PDFs 146 128
Long-Document Summarization 159 129
Short-Form Summarization 122 115
Blog Post Writing 140 118

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

Related comparisons

Anthropic: Claude Sonnet 5 vs MoonshotAI: Kimi K2.7 Code Anthropic: Claude Sonnet 5 vs Qwen: Qwen3.7 Plus Anthropic: Claude Sonnet 5 vs MiniMax: MiniMax M3 Anthropic: Claude Sonnet 5 vs StepFun: Step 3.7 Flash Anthropic: Claude Sonnet 5 vs Google: Gemini 3.5 Flash Anthropic: Claude Sonnet 5 vs Google: Gemini 3.1 Flash Lite Anthropic: Claude Sonnet 5 vs xAI: Grok 4.3 Anthropic: Claude Sonnet 5 vs Mistral: Mistral Medium 3.5