Sakana Fugu Ultra
Sakana AI · Released Jun 22, 2026
$5
Input price / MTok
#26 of 27$30
Output price / MTok
#26 of 271M
Context window
#18 of 2895.5
GPQA Diamond
#1 of 1993.2
LiveCodeBench
#2 of 8Summary
Sakana Fugu Ultra is a proprietary language model from Sakana AI, released on Jun 22, 2026.
At $5 input and $30 output per million tokens, it ranks #26 of 27 for input price, placing it among the higher-priced models tracked here.
Its context window of 1M tokens ranks #18 of 28 for context depth in this dataset.
It targets reasoning, agents, coding workloads.
Orchestrator model trained to devise agentic scaffolds across a swappable pool of frontier LLMs; behaves as a single model behind one API (coordination is learned, not static bundling).
Benchmarks
| Benchmark | Score | Max | % | Rank | Source |
|---|---|---|---|---|---|
| GPQA Diamond | 95.5 | 100 | 95.5% | #1/19 | Sakana AI (self-reported in technical re... |
| LiveCodeBench | 93.2 | 100 | 93.2% | #2/8 | Sakana AI (self-reported in technical re... |
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