Sakana AI

Sakana AI is a Tokyo-based frontier AI research laboratory founded in Japan that both publishes research and ships production products. The company's flagship product, Sakana Fugu, is described as a multi-agent system delivered as a model: instead of prescribing team organization, Fugu dynamically assembles agents from a pool of powerful models and coordinates them through non-obvious collaboration patterns to tackle complex, multi-step tasks. Developers access Fugu through a single API, and the system handles model selection and switching for each task, reducing integration complexity while improving cost-performance. Every Fugu plan includes access to both Fugu and Fugu Ultra, a more powerful variant. Fugu is available as a subscription with three monthly tiers: Standard at $20 per month for lightweight daily use, Pro at $100 per month with 10 times the usage, and Max at $200 per month with 20 times the usage. It is also available pay-as-you-go, billed per token, where Fugu is charged at the standard rate of the underlying model and fees are never stacked when multiple agents are active; Fugu Ultra is priced per 1 million tokens at $5 input, $30 output, and $0.50 cached input, with higher rates for contexts above 272K tokens. Sakana also offers Sakana Namazu, an LLM specialized in the Japanese language, and Sakana Translate, which uses Namazu for translation and proofreading. Sakana Marlin generates analyst research reports on demand, targeting finance and research workflows. Sakana Chat provides an AI chat experience featuring Fugu and Namazu. The company publishes its research through a blog organized by research, finance, and defense-intelligence labels, and it maintains an applied team hiring page. Fugu is not yet available in the EU or EEA while the company works toward GDPR compliance, and access in other regions may depend on network conditions or local regulations. Sakana positions itself as building frontier AI in Japan, with corporate information and contact forms available on its site.