head-to-head

xAI: Grok 4.20 vs Google: Gemini 3.1 Flash Lite Preview

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-05-01.

	xAI: Grok 4.20	Google: Gemini 3.1 Flash Lite Preview
Vendor	x-ai	google
Quality Score	100	100
Input Price	$1.25/M	$0.25/M
Output Price	$2.50/M	$1.50/M
Context Window	2,000,000	1,048,576
Max Output	-	65,536
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	✓

Who wins by task?

Task	xAI: Grok 4.20	Google: Gemini 3.1 Flash Lite Preview
SQL Generation	133	133
Code Completion	119	131
Code Documentation	131	131
Regex Writing	119	119
CSV / Spreadsheet Cleanup	133	133
JSON Extraction	123	131
Bulk Data Labeling	120	129
Long-Document Summarization	137	137
Short-Form Summarization	115	123
Blog Post Writing	121	121

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