head-to-head

OpenAI: GPT-6.1 Sol vs SpaceXAI: Grok 4.7

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-30.

OpenAI: GPT-6.1 Sol SpaceXAI: Grok 4.7
Vendoropenaix-ai
Quality Score100100
Benchmark Score89.279.2
Input Price$2.00/M$2.00/M
Output Price$10.00/M$6.00/M
Context Window1,050,000500,000
Max Output128,000450,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index85.576.6

The verdict

For a sample job of 1 million input tokens and 250,000 output tokens, Grok 4.7 costs $3.50 and GPT-6.1 Sol costs $4.50, so Grok 4.7 is about 1.3 times cheaper for the same work.

GPT-6.1 Sol reads up to 1,050,000 tokens at once, roughly 1,575 pages of text, against about 750 pages for Grok 4.7.

On our blended benchmark score GPT-6.1 Sol leads 89.2 to 79.2.

Across the 19 tasks where they differ, GPT-6.1 Sol scores higher on 14 (SQL Generation, Code Review, Code Refactoring and others), Grok 4.7 on 5 (Code Completion, CSV / Spreadsheet Cleanup, JSON Extraction and others).

Pick GPT-6.1 Sol if you need long documents, benchmark performance or the stronger all-round task scores; pick Grok 4.7 if you need lower cost.

Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.

Who wins by task?

TaskOpenAI: GPT-6.1 SolSpaceXAI: Grok 4.7
SQL Generation 143 142
Code Review 148 146
Code Completion 119 119
Code Refactoring 149 148
Bug Fixing 152 150
Unit Test Generation 134 133
Regex Writing 126 126
CI/CD Pipelines 130 129
Frontend Component Design 132 131
Data Analysis 136 135
CSV / Spreadsheet Cleanup 136 136
ETL Scripting 140 138
JSON Extraction 121 122
Bulk Data Labeling 118 119
OCR / Document Parsing 135 134
Table Extraction from PDFs 135 134
Long-Document Summarization 150 149
Short-Form Summarization 117 118
Blog Post Writing 131 130

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

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