head-to-head

xAI: Grok 4.5 vs Google: Gemini 3.1 Flash Lite Preview

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-09.

	xAI: Grok 4.5	Google: Gemini 3.1 Flash Lite Preview
Vendor	x-ai	google
Quality Score	100	100
Input Price	$2.00/M	$0.25/M
Output Price	$6.00/M	$1.50/M
Context Window	500,000	1,048,576
Max Output	-	65,536
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	✓

Who wins by task?

Task	xAI: Grok 4.5	Google: Gemini 3.1 Flash Lite Preview
SQL Generation	133	133
Code Completion	118	131
Code Documentation	130	131
Regex Writing	118	119
CSV / Spreadsheet Cleanup	133	133
JSON Extraction	122	131
Bulk Data Labeling	119	129
Long-Document Summarization	137	137
Short-Form Summarization	114	123
Blog Post Writing	121	121

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