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xAI: Grok Latest vs Anthropic: Claude Opus 4.8 (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-13.

xAI: Grok Latest Anthropic: Claude Opus 4.8 (batch)
Vendor~x-aianthropic
Quality Score100100
Benchmark Score10.694.7
Input Price$2.00/M$2.50/M
Output Price$6.00/M$12.50/M
Context Window500,0001,000,000
Max Output-128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index12.094.6
ai_index_agentic-81.5
ai_index_coding-100.0
eqbench-83.3

Who wins by task?

TaskxAI: Grok LatestAnthropic: Claude Opus 4.8 (batch)
SQL Generation 134 178
Code Review 134 179
Code Completion 118 121
Code Refactoring 137 176
Bug Fixing 138 193
Unit Test Generation 125 161
Code Documentation 131 148
Regex Writing 119 138
CI/CD Pipelines 121 151
Frontend Component Design 123 151
Data Analysis 125 178
CSV / Spreadsheet Cleanup 133 158
ETL Scripting 129 164
JSON Extraction 122 138
Bulk Data Labeling 119 123
OCR / Document Parsing 131 149
Table Extraction from PDFs 131 149
Long-Document Summarization 139 171
Short-Form Summarization 115 123
Blog Post Writing 122 146

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

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