head-to-head

SpaceXAI: Grok 4.5 vs NVIDIA: Nemotron 3 Nano Omni (free)

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

	SpaceXAI: Grok 4.5	NVIDIA: Nemotron 3 Nano Omni (free)
Vendor	x-ai	nvidia
Quality Score	100	100
Benchmark Score	65.0	-
Input Price	$2.00/M	Free
Output Price	$6.00/M	Free
Context Window	500,000	256,000
Max Output	450,000	65,536
Tool Calling	✓	✓
Structured Output	✓	-
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	✓
Benchmark Scores
ai_index	64.0	-

Who wins by task?

Task	SpaceXAI: Grok 4.5	NVIDIA: Nemotron 3 Nano Omni (free)
SQL Generation	140	123
Code Review	144	122
Code Completion	119	129
Code Refactoring	146	123
Bug Fixing	148	130
Unit Test Generation	131	113
Code Documentation	136	126
Regex Writing	124	120
CI/CD Pipelines	127	113
Frontend Component Design	129	118
Data Analysis	133	120
CSV / Spreadsheet Cleanup	135	116
ETL Scripting	137	118
JSON Extraction	122	120
Bulk Data Labeling	119	126
OCR / Document Parsing	134	120
Table Extraction from PDFs	134	120
Long-Document Summarization	147	129
Short-Form Summarization	117	124
Blog Post Writing	128	119

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