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OpenAI: GPT-5.6 Terra (batch) vs SpaceXAI: Grok Build 0.1

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

OpenAI: GPT-5.6 Terra (batch) SpaceXAI: Grok Build 0.1
Vendoropenaix-ai
Quality Score100100
Benchmark Score92.7-
Input Price$1.00/M$1.00/M
Output Price$6.00/M$2.00/M
Context Window1,050,000256,000
Max Output128,000-
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index93.3-
ai_index_agentic82.8-
ai_index_coding100.0-

Who wins by task?

TaskOpenAI: GPT-5.6 Terra (batch)SpaceXAI: Grok Build 0.1
SQL Generation 173 130
Code Review 169 126
Code Completion 120 116
Code Refactoring 165 127
Bug Fixing 183 130
Unit Test Generation 155 121
Code Documentation 143 125
Regex Writing 136 119
CI/CD Pipelines 146 117
Frontend Component Design 148 122
Data Analysis 173 124
CSV / Spreadsheet Cleanup 154 127
ETL Scripting 155 122
JSON Extraction 140 123
Bulk Data Labeling 125 121
OCR / Document Parsing 147 128
Table Extraction from PDFs 147 128
Long-Document Summarization 161 129
Short-Form Summarization 123 115
Blog Post Writing 141 118

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

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