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SpaceXAI: Grok 4.6 vs MoonshotAI: Kimi K3 (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-04.

SpaceXAI: Grok 4.6 MoonshotAI: Kimi K3 (batch)
Vendorx-aimoonshotai
Quality Score100100
Benchmark Score99.096.2
Input Price$2.00/M$3.00/M
Output Price$6.00/M$15.00/M
Context Window500,0001,048,576
Max Output450,000943,718
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index100.098.5
ai_index_agentic96.889.5
ai_index_coding100.0100.0

Who wins by task?

TaskSpaceXAI: Grok 4.6MoonshotAI: Kimi K3 (batch)
SQL Generation 175 173
Code Review 171 170
Code Completion 120 118
Code Refactoring 167 167
Bug Fixing 187 185
Unit Test Generation 157 157
Code Documentation 144 141
Regex Writing 138 135
CI/CD Pipelines 147 147
Frontend Component Design 149 149
Data Analysis 177 175
CSV / Spreadsheet Cleanup 155 153
ETL Scripting 157 157
JSON Extraction 140 138
Bulk Data Labeling 125 122
OCR / Document Parsing 147 147
Table Extraction from PDFs 147 147
Long-Document Summarization 163 161
Short-Form Summarization 124 122
Blog Post Writing 143 141

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

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