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StepFun: Step 3.7 Flash vs Google: Gemini 3.1 Flash Lite

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-15.

StepFun: Step 3.7 Flash Google: Gemini 3.1 Flash Lite
Vendorstepfungoogle
Quality Score100100
Benchmark Score50.8-
Input Price$0.20/M$0.25/M
Output Price$1.15/M$1.50/M
Context Window256,0001,048,576
Max Output256,00065,536
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio-✓
Benchmark Scores
ai_index49.9-
ai_index_agentic35.5-
ai_index_coding65.3-

Who wins by task?

TaskStepFun: Step 3.7 FlashGoogle: Gemini 3.1 Flash Lite
SQL Generation 153 133
Code Review 146 132
Code Completion 129 131
Code Refactoring 143 136
Bug Fixing 155 136
Unit Test Generation 139 124
Code Documentation 132 131
Regex Writing 129 119
CI/CD Pipelines 131 120
Frontend Component Design 136 122
Data Analysis 150 124
CSV / Spreadsheet Cleanup 141 133
ETL Scripting 137 128
JSON Extraction 142 131
Bulk Data Labeling 133 129
OCR / Document Parsing 137 131
Table Extraction from PDFs 137 131
Long-Document Summarization 142 137
Short-Form Summarization 128 123
Blog Post Writing 129 121

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

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