head-to-head

Space Bunny Alpha vs OpenAI: GPT-6 Luna (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-24.

Space Bunny Alpha OpenAI: GPT-6 Luna (batch)
Vendorstealthopenai
Quality Score100100
Benchmark Score-62.2
Input PriceFree$0.05/M
Output PriceFree$0.25/M
Context Window1,000,0001,050,000
Max Output524,288128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index-61.5

The verdict

For a sample job of 1 million input tokens and 250,000 output tokens, Space Bunny Alpha costs $0 and GPT-6 Luna (batch) costs $0.11, so Space Bunny Alpha is free for the same work.

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

Only Space Bunny Alpha offers video input.

Across the 20 tasks where they differ, Space Bunny Alpha scores higher on 2 (JSON Extraction, Bulk Data Labeling), GPT-6 Luna (batch) on 18 (SQL Generation, Code Review, Code Completion and others).

Pick Space Bunny Alpha if you need lower cost or video input; pick GPT-6 Luna (batch) if you need 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?

TaskSpace Bunny AlphaOpenAI: GPT-6 Luna (batch)
SQL Generation 134 141
Code Review 132 143
Code Completion 132 133
Code Refactoring 136 145
Bug Fixing 136 147
Unit Test Generation 124 131
Code Documentation 132 137
Regex Writing 120 126
CI/CD Pipelines 120 127
Frontend Component Design 122 129
Data Analysis 124 133
CSV / Spreadsheet Cleanup 134 136
ETL Scripting 128 136
JSON Extraction 132 131
Bulk Data Labeling 130 129
OCR / Document Parsing 131 134
Table Extraction from PDFs 131 134
Long-Document Summarization 138 147
Short-Form Summarization 124 127
Blog Post Writing 122 129

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

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