head-to-head

Anthropic: Claude Opus 5 (batch) vs xAI: Grok Latest

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

Anthropic: Claude Opus 5 (batch) xAI: Grok Latest
Vendoranthropic~x-ai
Quality Score100100
Benchmark Score87.35.8
Input Price$2.50/M$1.60/M
Output Price$12.50/M$4.80/M
Context Window1,000,000500,000
Max Output128,000450,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index83.811.4

Who wins by task?

TaskAnthropic: Claude Opus 5 (batch)xAI: Grok Latest
SQL Generation 142 134
Code Review 147 134
Code Completion 118 118
Code Refactoring 149 137
Bug Fixing 151 138
Unit Test Generation 134 125
Code Documentation 136 131
Regex Writing 125 119
CI/CD Pipelines 130 121
Frontend Component Design 132 123
Data Analysis 136 125
CSV / Spreadsheet Cleanup 135 133
ETL Scripting 139 129
JSON Extraction 121 122
Bulk Data Labeling 117 120
OCR / Document Parsing 135 131
Table Extraction from PDFs 135 131
Long-Document Summarization 149 139
Short-Form Summarization 117 115
Blog Post Writing 130 122

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

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