head-to-head

xAI: Grok 4.3 vs NVIDIA: Nemotron 3 Nano Omni (free)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-17.

	xAI: Grok 4.3	NVIDIA: Nemotron 3 Nano Omni (free)
Vendor	x-ai	nvidia
Quality Score	100	100
Benchmark Score	75.0	-
Input Price	$1.25/M	Free
Output Price	$2.50/M	Free
Context Window	1,000,000	256,000
Max Output	-	65,536
Tool Calling	✓	✓
Structured Output	✓	-
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	✓
Benchmark Scores
ai_index	62.0	-
ai_index_agentic	100.0	-
ai_index_coding	67.7	-

Who wins by task?

Task	xAI: Grok 4.3	NVIDIA: Nemotron 3 Nano Omni (free)
SQL Generation	166	123
Code Review	161	122
Code Completion	120	129
Code Refactoring	159	123
Bug Fixing	176	130
Unit Test Generation	148	113
Code Documentation	141	126
Regex Writing	134	120
CI/CD Pipelines	140	113
Frontend Component Design	142	118
Data Analysis	166	120
CSV / Spreadsheet Cleanup	149	116
ETL Scripting	149	118
JSON Extraction	136	120
Bulk Data Labeling	125	126
OCR / Document Parsing	142	120
Table Extraction from PDFs	142	120
Long-Document Summarization	156	129
Short-Form Summarization	122	124
Blog Post Writing	137	119

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