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Claude Opus 5 (batch) vs Anthropic: Claude Opus 4.8 (batch)

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

Claude Opus 5 (batch) Anthropic: Claude Opus 4.8 (batch)
Vendoranthropicanthropic
Quality Score100100
Benchmark Score100.094.7
Input Price$2.50/M$2.50/M
Output Price$12.50/M$12.50/M
Context Window1,000,0001,000,000
Max Output128,000128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index100.094.6
ai_index_agentic97.681.5
ai_index_coding100.0100.0
eqbench-83.3

Who wins by task?

TaskClaude Opus 5 (batch)Anthropic: Claude Opus 4.8 (batch)
SQL Generation 175 178
Code Review 171 179
Code Completion 119 121
Code Refactoring 167 176
Bug Fixing 187 193
Unit Test Generation 157 161
Code Documentation 142 148
Regex Writing 136 138
CI/CD Pipelines 147 151
Frontend Component Design 149 151
Data Analysis 177 178
CSV / Spreadsheet Cleanup 154 158
ETL Scripting 157 164
JSON Extraction 138 138
Bulk Data Labeling 123 123
OCR / Document Parsing 148 149
Table Extraction from PDFs 148 149
Long-Document Summarization 162 171
Short-Form Summarization 122 123
Blog Post Writing 142 146

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

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