Anthropic: Claude Opus 5.5 (batch) vs Sakana: Fugu Max
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-13.
| Anthropic: Claude Opus 5.5 (batch) | Sakana: Fugu Max | |
|---|---|---|
| Vendor | anthropic | sakana |
| Quality Score | 100 | 100 |
| Benchmark Score | 100.0 | - |
| Input Price | $2.00/M | $2.00/M |
| Output Price | $10.00/M | $6.00/M |
| Context Window | 1,000,000 | 1,000,000 |
| Max Output | 128,000 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 95.1 | - |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Fugu Max costs $3.50 and Claude Opus 5.5 (batch) costs $4.50, so Fugu Max is about 1.3 times cheaper for the same work.
Both read up to 1,000,000 tokens at once, roughly 1,500 pages of text.
Across the 20 tasks where they differ, Claude Opus 5.5 (batch) scores higher on 18 (SQL Generation, Code Review, Code Completion and others), Fugu Max on 2 (JSON Extraction, Bulk Data Labeling).
Pick Claude Opus 5.5 (batch) if you need the stronger all-round task scores; pick Fugu Max if you need lower cost.
Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.
Who wins by task?
| Task | Anthropic: 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 →