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Thinking Machines: Inkling vs StepFun: Step 3.7 Flash

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-13.

Thinking Machines: Inkling StepFun: Step 3.7 Flash
Vendorthinkingmachinesstepfun
Quality Score100100
Benchmark Score70.550.1
Input Price$0.95/M$0.20/M
Output Price$4.05/M$1.15/M
Context Window1,048,576262,144
Max Output262,144256,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index69.851.0
ai_index_agentic56.335.9
ai_index_coding85.965.3

Who wins by task?

TaskThinking Machines: InklingStepFun: Step 3.7 Flash
SQL Generation 164 153
Code Review 160 146
Code Completion 132 130
Code Refactoring 158 144
Bug Fixing 171 155
Unit Test Generation 148 139
Code Documentation 140 133
Regex Writing 132 129
CI/CD Pipelines 140 131
Frontend Component Design 142 136
Data Analysis 161 150
CSV / Spreadsheet Cleanup 150 141
ETL Scripting 149 138
JSON Extraction 145 142
Bulk Data Labeling 133 133
OCR / Document Parsing 144 138
Table Extraction from PDFs 144 138
Long-Document Summarization 155 142
Short-Form Summarization 129 128
Blog Post Writing 136 130

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

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