head-to-head

Anthropic: Claude Opus 5.5 (batch) vs Sakana: Fugu Max

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

Anthropic: Claude Opus 5.5 (batch) Sakana: Fugu Max
Vendoranthropicsakana
Quality Score100100
Benchmark Score100.0-
Input Price$2.00/M$2.00/M
Output Price$10.00/M$6.00/M
Context Window1,000,0001,000,000
Max Output128,000128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index95.1-

Who wins by task?

TaskAnthropic: Claude Opus 5.5 (batch)Sakana: Fugu Max
SQL Generation 144 133
Code Review 150 132
Code Completion 119 118
Code Refactoring 151 136
Bug Fixing 154 136
Unit Test Generation 135 124
Code Documentation 138 130
Regex Writing 127 118
CI/CD Pipelines 131 120
Frontend Component Design 133 122
Data Analysis 138 124
CSV / Spreadsheet Cleanup 136 133
ETL Scripting 141 128
JSON Extraction 121 122
Bulk Data Labeling 118 119
OCR / Document Parsing 135 131
Table Extraction from PDFs 135 131
Long-Document Summarization 152 137
Short-Form Summarization 118 114
Blog Post Writing 132 121

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

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