head-to-head

OpenAI: GPT-6 Luna Pro vs Sakana: Fugu Max

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

OpenAI: GPT-6 Luna Pro Sakana: Fugu Max
Vendoropenaisakana
Quality Score100100
Input Price$0.10/M$2.00/M
Output Price$0.50/M$6.00/M
Context Window1,050,0001,000,000
Max Output128,000128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--

Who wins by task?

TaskOpenAI: GPT-6 Luna ProSakana: Fugu Max
SQL Generation 133 133
Code Completion 131 118
Code Documentation 131 130
Regex Writing 119 118
CSV / Spreadsheet Cleanup 133 133
JSON Extraction 131 122
Bulk Data Labeling 129 119
Long-Document Summarization 137 137
Short-Form Summarization 123 114
Blog Post Writing 121 121

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

Related comparisons

Cohere: Command A+ vs OpenAI: GPT-6 Luna Pro Cohere: Command A+ vs Sakana: Fugu Max OpenAI: GPT-6 Luna Pro vs OpenAI: GPT-6 Luna Pro (batch) OpenAI: GPT-6 Luna Pro vs OpenAI: GPT-6 Luna OpenAI: GPT-6 Luna Pro vs OpenAI: GPT-6 Luna (batch) OpenAI: GPT-6 Luna Pro vs OpenAI: GPT-6 Sol Pro OpenAI: GPT-6 Luna Pro vs OpenAI: GPT-6 Sol Pro (batch) OpenAI: GPT-6 Luna Pro vs OpenAI: GPT-6 Sol

The Model Movers Report

One email every Friday, built from this site's own rankings: the current top five by benchmark score, every model released in the last seven days, and one note worked out from that week's numbers. You can unsubscribe from any issue with one click.