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

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-07.

MoonshotAI: Kimi K2.7 Code (batch) StepFun: Step 3.7 Flash
Vendormoonshotaistepfun
Quality Score100100
Benchmark Score73.550.1
Input Price$0.47/M$0.20/M
Output Price$2.00/M$1.15/M
Context Window262,144262,144
Max Output-256,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index71.051.0
ai_index_agentic50.035.9
ai_index_coding100.065.3

Who wins by task?

TaskMoonshotAI: Kimi K2.7 Code (batch)StepFun: Step 3.7 Flash
SQL Generation 163 153
Code Review 156 146
Code Completion 130 130
Code Refactoring 151 144
Bug Fixing 166 155
Unit Test Generation 147 139
Code Documentation 135 133
Regex Writing 133 129
CI/CD Pipelines 138 131
Frontend Component Design 143 136
Data Analysis 162 150
CSV / Spreadsheet Cleanup 147 141
ETL Scripting 144 138
JSON Extraction 148 142
Bulk Data Labeling 134 133
OCR / Document Parsing 142 138
Table Extraction from PDFs 142 138
Long-Document Summarization 147 142
Short-Form Summarization 130 128
Blog Post Writing 134 130

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

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