head-to-head

OpenAI: GPT Luna Latest vs Sakana: Sakana Namazu

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

Who wins by task?

Task	OpenAI: GPT Luna Latest	Sakana: Sakana Namazu
SQL Generation	133	130
Code Review	132	126
Code Completion	131	128
Code Refactoring	136	127
Bug Fixing	136	130
Unit Test Generation	124	121
Code Documentation	131	125
Regex Writing	119	119
CI/CD Pipelines	120	117
CSV / Spreadsheet Cleanup	133	128
ETL Scripting	128	122
JSON Extraction	131	131
Bulk Data Labeling	129	128
OCR / Document Parsing	131	128
Table Extraction from PDFs	131	128
Long-Document Summarization	137	129
Short-Form Summarization	123	123
Blog Post Writing	121	118

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