head-to-head

Google: Gemini 3.5 Flash vs OpenAI: GPT-5.4 Nano

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

Google: Gemini 3.5 Flash OpenAI: GPT-5.4 Nano
Vendorgoogleopenai
Quality Score100100
Benchmark Score53.531.5
Input Price$1.50/M$0.20/M
Output Price$9.00/M$1.25/M
Context Window1,048,576400,000
Max Output65,536128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio-
Benchmark Scores
ai_index53.834.2

Who wins by task?

TaskGoogle: Gemini 3.5 FlashOpenAI: GPT-5.4 Nano
SQL Generation 139 138
Code Review 142 138
Code Completion 119 132
Code Refactoring 144 141
Bug Fixing 146 142
Unit Test Generation 130 128
Code Documentation 134 134
Regex Writing 123 123
CI/CD Pipelines 126 124
Frontend Component Design 128 126
Data Analysis 132 129
CSV / Spreadsheet Cleanup 135 135
ETL Scripting 135 132
JSON Extraction 121 131
Bulk Data Labeling 118 129
OCR / Document Parsing 133 132
Table Extraction from PDFs 133 132
Long-Document Summarization 145 143
Short-Form Summarization 116 125
Blog Post Writing 127 126

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

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