Sakana AI's upgraded Fugu Ultra release with stronger coding, agentic task execution, and advanced reasoning through dynamic orchestration of frontier models.
Added Jul 24, 2026
Context Window
1.0M
Max Output
16.4K
Input Price (Auto)
$5.25/1M
Output Price (Auto)
$31.50/1M
Cache Read (Auto)
$0.53/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
No benchmark data is available yet for this model.
Providers
Auto routing is available for this model. Explicit provider selection is not available.
Loading provider options…
Related text models
Compare Fugu Ultra v1.1 with similar models from the same provider or model family.
Fugu Ultra
sakana/fugu-ultraSakana AI's higher-quality Fugu model. It coordinates a deeper pool of expert agents for hard, high-stakes reasoning and coding tasks.
Greg 2 Ultra
crofai/greg-2-ultraGreg 2 Ultra is CrofAI's most capable Greg 2 model, tuned for premium UI design, agentic coding, creative writing, and higher-end general reasoning tasks.
Nvidia Nemotron 3 Ultra 550B
nvidia/nemotron-3-ultra-550b-a55bNvidia's Nemotron 3 Ultra 550B A55B model from the Nemotron 3 family. It uses a hybrid Mamba-Transformer MoE architecture. Provider-specific context limits vary, with the longest current route supporting up to 1M context.
Nvidia Nemotron 3 Ultra 550B Thinking
nvidia/nemotron-3-ultra-550b-a55b:thinkingNvidia's Nemotron 3 Ultra 550B A55B model from the Nemotron 3 family. It uses a hybrid Mamba-Transformer MoE architecture. Provider-specific context limits vary, with the longest current route supporting up to 1M context. Thinking enabled.
Chimera X
google/gemma-4-26b-a4b-it-chimeraxChimera X is a Gemma 4 26B A4B multimodal mixture-of-experts fine-tune for creative writing, expressive dialogue, and roleplay.
Dark Soul
google/gemma-4-26b-a4b-it-darksoulDark Soul is a Gemma 4 26B A4B multimodal mixture-of-experts fine-tune for creative writing, expressive dialogue, and roleplay.