head-to-head

Google: Gemini 3.5 Flash Lite vs OpenAI: GPT-5.6 Terra Pro (batch)

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

Google: Gemini 3.5 Flash Lite OpenAI: GPT-5.6 Terra Pro (batch)
Vendorgoogleopenai
Quality Score100100
Benchmark Score34.2-
Input Price$0.30/M$1.00/M
Output Price$2.50/M$6.00/M
Context Window1,048,5761,050,000
Max Output65,536128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio-
Benchmark Scores
ai_index36.6-

Who wins by task?

TaskGoogle: Gemini 3.5 Flash LiteOpenAI: GPT-5.6 Terra Pro (batch)
SQL Generation 138 133
Code Review 139 132
Code Completion 132 118
Code Refactoring 141 136
Bug Fixing 143 136
Unit Test Generation 128 124
Code Documentation 134 130
Regex Writing 123 118
CI/CD Pipelines 124 120
Frontend Component Design 126 122
Data Analysis 129 124
CSV / Spreadsheet Cleanup 135 133
ETL Scripting 133 128
JSON Extraction 131 122
Bulk Data Labeling 129 119
OCR / Document Parsing 132 131
Table Extraction from PDFs 132 131
Long-Document Summarization 143 137
Short-Form Summarization 125 114
Blog Post Writing 126 121

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

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