head-to-head

Google: Gemini 3.6 Flash vs SpaceXAI: Grok 4.20

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

Google: Gemini 3.6 Flash SpaceXAI: Grok 4.20
Vendorgooglex-ai
Quality Score100100
Benchmark Score56.150.6
Input Price$0.75/M$1.25/M
Output Price$3.75/M$2.50/M
Context Window1,048,5762,000,000
Max Output65,5361,800,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio-
Benchmark Scores
ai_index56.142.3
eqbench-55.8

Who wins by task?

TaskGoogle: Gemini 3.6 FlashSpaceXAI: Grok 4.20
SQL Generation 140 142
Code Review 142 146
Code Completion 132 121
Code Refactoring 145 150
Bug Fixing 146 150
Unit Test Generation 130 133
Code Documentation 136 139
Regex Writing 124 125
CI/CD Pipelines 126 129
Frontend Component Design 128 129
Data Analysis 132 133
CSV / Spreadsheet Cleanup 135 138
ETL Scripting 135 139
JSON Extraction 131 123
Bulk Data Labeling 128 120
OCR / Document Parsing 133 134
Table Extraction from PDFs 133 134
Long-Document Summarization 146 151
Short-Form Summarization 125 118
Blog Post Writing 128 130

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

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