Sakana AI
Fugu Ultra
Quality-first multi-agent model for hard research, analysis, and competitions
Model facts
- Context window
- 1M tokens
- Maximum output
- 1M tokens
- Cheapest paid input
- $5 per 1M tokens
- Cheapest paid output
- $30 per 1M tokens
- Open weights
- no
- Providers
- 12
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image.
Observed price history
- 2026-08-24: $4.5 input / $27 output per 1M tokens
- 2026-08-28: $5 input / $30 output per 1M tokens
API providers
- DevPass (LLM Gateway) — model id fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- Kilo Gateway — model id sakana/fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- LLM Gateway (Sakana AI) — model id sakana/fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- LLMTR — model id sakana/fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- Merge Gateway — model id sakana/fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- OpenRouter — model id sakana/fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- Pioneer — model id sakana/fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- Requesty — model id fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- Sakana AI — model id fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- Sakana AI — model id fugu-ultra-20260615; $5 input / $30 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id sakana/fugu-ultra; $5 input / $30 output per 1M tokens; provider documentation
- NanoGPT — model id sakana/fugu-ultra; $5.25 input / $31.5 output per 1M tokens; provider documentation