head-to-head

xAI: Grok Latest 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 Latest	Google: Gemini 3.1 Flash Lite Preview
Vendor	~x-ai	google
Quality Score	100	100
Benchmark Score	10.9	-
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	-	✓
Benchmark Scores
ai_index	12.4	-

Who wins by task?

Task	xAI: Grok Latest	Google: Gemini 3.1 Flash Lite Preview
SQL Generation	134	133
Code Review	134	132
Code Completion	118	131
Code Refactoring	138	136
Bug Fixing	138	136
Unit Test Generation	125	124
Code Documentation	131	131
Regex Writing	119	119
CI/CD Pipelines	121	120
Frontend Component Design	123	122
Data Analysis	125	124
CSV / Spreadsheet Cleanup	133	133
ETL Scripting	129	128
JSON Extraction	122	131
Bulk Data Labeling	119	129
OCR / Document Parsing	131	131
Table Extraction from PDFs	131	131
Long-Document Summarization	139	137
Short-Form Summarization	115	123
Blog Post Writing	122	121

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