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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 2026-07-18.

Thinking Machines: Inkling StepFun: Step 3.7 Flash
Vendorthinkingmachinesstepfun
Quality Score100100
Benchmark Score-50.8
Input Price$1.00/M$0.20/M
Output Price$4.05/M$1.15/M
Context Window1,048,576256,000
Max Output-256,000
Tool Calling✓✓
Structured Output-✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index-49.9
ai_index_agentic-35.5
ai_index_coding-65.3

Who wins by task?

TaskThinking Machines: InklingStepFun: Step 3.7 Flash
SQL Generation 125 153
Code Review 128 146
Code Completion 119 129
Code Refactoring 132 143
Bug Fixing 136 155
Unit Test Generation 116 139
Code Documentation 131 132
Regex Writing 119 129
CI/CD Pipelines 116 131
Frontend Component Design 118 136
Data Analysis 120 150
CSV / Spreadsheet Cleanup 121 141
ETL Scripting 124 137
JSON Extraction 111 142
Bulk Data Labeling 116 133
OCR / Document Parsing 123 137
Table Extraction from PDFs 123 137
Long-Document Summarization 137 142
Short-Form Summarization 115 128
Blog Post Writing 121 129

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

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