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MoonshotAI: Kimi K2.7 Code vs StepFun: Step 3.7 Flash

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

MoonshotAI: Kimi K2.7 Code StepFun: Step 3.7 Flash
Vendormoonshotaistepfun
Quality Score100100
Benchmark Score40.929.1
Input Price$0.71/M$0.20/M
Output Price$3.30/M$1.15/M
Context Window262,144262,144
Max Output235,929230,400
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index42.632.1

Who wins by task?

TaskMoonshotAI: Kimi K2.7 CodeStepFun: Step 3.7 Flash
SQL Generation 136 135
Code Review 134 132
Code Completion 129 129
Code Refactoring 134 132
Bug Fixing 138 136
Unit Test Generation 126 125
Code Documentation 129 129
Regex Writing 123 122
CI/CD Pipelines 122 121
Frontend Component Design 127 125
Data Analysis 130 128
CSV / Spreadsheet Cleanup 129 129
ETL Scripting 128 127
JSON Extraction 131 131
Bulk Data Labeling 128 129
OCR / Document Parsing 130 129
Table Extraction from PDFs 130 129
Long-Document Summarization 136 134
Blog Post Writing 124 123

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

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