head-to-head

OpenAI: GPT-6.1 Sol Pro (batch) vs Space Bunny Alpha

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

OpenAI: GPT-6.1 Sol Pro (batch) Space Bunny Alpha
Vendoropenaistealth
Quality Score100100
Input Price$1.00/MFree
Output Price$5.00/MFree
Context Window1,050,0001,000,000
Max Output128,000524,288
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--

The verdict

For a sample job of 1 million input tokens and 250,000 output tokens, Space Bunny Alpha costs $0 and GPT-6.1 Sol Pro (batch) costs $2.25, so Space Bunny Alpha is free for the same work.

Both take in a similar amount of text: 1,050,000 and 1,000,000 tokens, about 1,575 and 1,500 pages.

Only Space Bunny Alpha offers video input.

Across the 10 tasks where they differ, Space Bunny Alpha on 10 (SQL Generation, Code Completion, Code Documentation and others).

Pick Space Bunny Alpha if you need lower cost, video input or the stronger all-round task scores.

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 Sol Pro (batch)Space Bunny Alpha
SQL Generation 133 134
Code Completion 118 132
Code Documentation 130 132
Regex Writing 118 120
CSV / Spreadsheet Cleanup 133 134
JSON Extraction 122 132
Bulk Data Labeling 120 130
Long-Document Summarization 137 138
Short-Form Summarization 114 124
Blog Post Writing 121 122

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

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