head-to-head

OpenAI: GPT-5.6 Luna vs NVIDIA: Nemotron 3 Nano Omni (free)

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

	OpenAI: GPT-5.6 Luna	NVIDIA: Nemotron 3 Nano Omni (free)
Vendor	openai	nvidia
Quality Score	100	100
Benchmark Score	62.3	-
Input Price	$0.20/M	Free
Output Price	$1.20/M	Free
Context Window	1,050,000	256,000
Max Output	128,000	65,536
Tool Calling	✓	✓
Structured Output	✓	-
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	✓
Benchmark Scores
ai_index	61.6	-

Who wins by task?

Task	OpenAI: GPT-5.6 Luna	NVIDIA: Nemotron 3 Nano Omni (free)
SQL Generation	141	123
Code Review	143	122
Code Completion	133	129
Code Refactoring	145	123
Bug Fixing	147	130
Unit Test Generation	131	113
Code Documentation	137	126
Regex Writing	125	120
CI/CD Pipelines	127	113
Frontend Component Design	129	118
Data Analysis	133	120
CSV / Spreadsheet Cleanup	136	116
ETL Scripting	136	118
JSON Extraction	131	120
Bulk Data Labeling	129	126
OCR / Document Parsing	134	120
Table Extraction from PDFs	134	120
Long-Document Summarization	147	129
Short-Form Summarization	126	124
Blog Post Writing	129	119

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