head-to-head

Google: Gemini 3.8 Flash vs Claude Opus 5 (batch)

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

Google: Gemini 3.8 Flash Claude Opus 5 (batch)
Vendorgoogleanthropic
Quality Score100100
Benchmark Score93.499.3
Input Price$0.75/M$2.50/M
Output Price$3.75/M$12.50/M
Context Window1,048,5761,000,000
Max Output65,536128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio-
Benchmark Scores
ai_index96.8100.0
ai_index_agentic82.597.6
ai_index_coding100.0100.0

Who wins by task?

TaskGoogle: Gemini 3.8 FlashClaude Opus 5 (batch)
SQL Generation 173 175
Code Review 169 171
Code Completion 133 119
Code Refactoring 166 167
Bug Fixing 183 187
Unit Test Generation 156 157
Code Documentation 144 142
Regex Writing 137 136
CI/CD Pipelines 146 147
Frontend Component Design 148 149
Data Analysis 173 177
CSV / Spreadsheet Cleanup 154 154
ETL Scripting 156 157
JSON Extraction 148 138
Bulk Data Labeling 134 123
OCR / Document Parsing 147 148
Table Extraction from PDFs 147 148
Long-Document Summarization 162 162
Short-Form Summarization 132 122
Blog Post Writing 142 142

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

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