head-to-head

SpaceXAI: Grok 4.5 vs StepFun: Step 3.7 Flash

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

SpaceXAI: Grok 4.5 StepFun: Step 3.7 Flash
Vendorx-aistepfun
Quality Score100100
Benchmark Score91.550.1
Input Price$2.00/M$0.20/M
Output Price$6.00/M$1.15/M
Context Window500,000262,144
Max Output-256,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index92.051.0
ai_index_agentic80.635.9
ai_index_coding100.065.3

Who wins by task?

TaskSpaceXAI: Grok 4.5StepFun: Step 3.7 Flash
SQL Generation 172 153
Code Review 168 146
Code Completion 120 130
Code Refactoring 165 144
Bug Fixing 182 155
Unit Test Generation 155 139
Code Documentation 143 133
Regex Writing 136 129
CI/CD Pipelines 145 131
Frontend Component Design 147 136
Data Analysis 172 150
CSV / Spreadsheet Cleanup 154 141
ETL Scripting 155 138
JSON Extraction 139 142
Bulk Data Labeling 125 133
OCR / Document Parsing 147 138
Table Extraction from PDFs 147 138
Long-Document Summarization 160 142
Short-Form Summarization 123 128
Blog Post Writing 141 130

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

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