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OpenAI: GPT-5.6 Terra Pro vs xAI: Grok Build 0.1

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-11.

OpenAI: GPT-5.6 Terra Pro xAI: Grok Build 0.1
Vendoropenaix-ai
Quality Score100100
Input Price$2.50/M$1.00/M
Output Price$15.00/M$2.00/M
Context Window1,050,000256,000
Max Output128,000-
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--

Who wins by task?

TaskOpenAI: GPT-5.6 Terra ProxAI: Grok Build 0.1
SQL Generation 132 130
Code Review 132 126
Code Refactoring 136 127
Bug Fixing 136 130
Unit Test Generation 124 121
Code Documentation 128 125
Regex Writing 116 119
CI/CD Pipelines 120 117
CSV / Spreadsheet Cleanup 132 127
ETL Scripting 128 122
JSON Extraction 120 123
Bulk Data Labeling 116 121
OCR / Document Parsing 131 128
Table Extraction from PDFs 131 128
Long-Document Summarization 136 129
Short-Form Summarization 112 115
Blog Post Writing 120 118

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

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