Benchmark scores
Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.
LLM Comparison
Sakana Fugu Ultra vs GPT-5.5: benchmark scores, pricing & comparison.
Side-by-side Sakana Fugu Ultra vs GPT-5.5 comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.
Rank #1 vs #5AskClash overall scores 96.5 vs 84.5.
Pricing —/— vs $5.00/$30.0Input and output token prices per 1M tokens when published.
Proprietary vs ProprietarySakana AI vs OpenAI.
Sakana Fugu Ultra vs GPT-5.5 benchmark comparison
Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.
| Metric | Sakana Fugu Ultra | GPT-5.5 |
|---|---|---|
| Overall Score | 96.5 | 84.5 |
| Leaderboard Rank | #1 | #5 |
| RWT | — | 8.5 |
| Coding Agent Index | — | 76.4 |
| HLE | — | 52.2 |
| GPQA | 95.5 | 93.6 |
| SWE-Pro | — | 58.6 |
| Terminal-Bench | 82.1 | 82.7 |
| LiveCodeBench | 93.2 | — |
| OSWorld | — | 78.7 |
| MCP Atlas | — | 75.3 |
| Finance Agent | — | 51.8 |
| MMMU-Pro | — | 81.2 |
| ARC-AGI 2 | — | 85.0 |
| Tau2 | — | 98.0 |
| Input Price (per 1M tokens) | — | $5.00 |
| Output Price (per 1M tokens) | — | $30.0 |
| Context Window | 1M | 1M |
| Benchmark Cells | 3 | 12 |
More Sakana Fugu Ultra and GPT-5.5 comparisons
Explore how Sakana Fugu Ultra and GPT-5.5 stack up against other top-ranked LLMs.
Sakana Fugu Ultra vs Claude Mythos Fable 5Claude Mythos Fable 5 vs GPT-5.5Sakana Fugu Ultra vs Claude Opus 4.8Claude Opus 4.8 vs GPT-5.5Sakana Fugu Ultra vs GLM-5.2GLM-5.2 vs GPT-5.5Sakana Fugu Ultra vs Claude Sonnet 5GPT-5.5 vs Claude Sonnet 5Sakana Fugu Ultra vs Claude Opus 4.7 (Adaptive)GPT-5.5 vs Claude Opus 4.7 (Adaptive)
How to read this comparison
Token pricing
Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.
Coverage matters
Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.
This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.