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StepFun: Step 3.7 Flash vs SpaceXAI: Grok Build 0.1

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

StepFun: Step 3.7 Flash SpaceXAI: Grok Build 0.1
Vendorstepfunx-ai
Quality Score100100
Benchmark Score50.1-
Input Price$0.20/M$1.00/M
Output Price$1.15/M$2.00/M
Context Window262,144256,000
Max Output256,000-
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index51.0-
ai_index_agentic35.9-
ai_index_coding65.3-

Who wins by task?

TaskStepFun: Step 3.7 FlashSpaceXAI: Grok Build 0.1
SQL Generation 153 130
Code Review 146 126
Code Completion 130 116
Code Refactoring 144 127
Bug Fixing 155 130
Unit Test Generation 139 121
Code Documentation 133 125
Regex Writing 129 119
CI/CD Pipelines 131 117
Frontend Component Design 136 122
Data Analysis 150 124
CSV / Spreadsheet Cleanup 141 127
ETL Scripting 138 122
JSON Extraction 142 123
Bulk Data Labeling 133 121
OCR / Document Parsing 138 128
Table Extraction from PDFs 138 128
Long-Document Summarization 142 129
Short-Form Summarization 128 115
Blog Post Writing 130 118

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

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