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Google: Gemini 3.8 Flash (batch) vs MoonshotAI: Kimi K3 (batch)

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

Google: Gemini 3.8 Flash (batch) MoonshotAI: Kimi K3 (batch)
Vendorgooglemoonshotai
Quality Score100100
Benchmark Score93.496.2
Input Price$0.38/M$3.00/M
Output Price$1.88/M$15.00/M
Context Window1,048,5761,048,576
Max Output65,536943,718
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index96.898.5
ai_index_agentic82.589.5
ai_index_coding100.0100.0

Who wins by task?

TaskGoogle: Gemini 3.8 Flash (batch)MoonshotAI: Kimi K3 (batch)
SQL Generation 173 173
Code Review 169 170
Code Completion 133 118
Code Refactoring 166 167
Bug Fixing 183 185
Unit Test Generation 156 157
Code Documentation 144 141
Regex Writing 138 135
CI/CD Pipelines 146 147
Frontend Component Design 148 149
Data Analysis 173 175
CSV / Spreadsheet Cleanup 155 153
ETL Scripting 156 157
JSON Extraction 149 138
Bulk Data Labeling 135 122
OCR / Document Parsing 147 147
Table Extraction from PDFs 147 147
Long-Document Summarization 162 161
Short-Form Summarization 132 122
Blog Post Writing 142 141

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

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