Fugu Ultra v2 is the higher-performance model in Sakana AI's Fugu family. Rather than a single monolithic model, Fugu is a learned multi-agent orchestration system: a language model trained to...
Specs
sakana/sakana-namazuHow to use Sakana Namazu in your app
The quickest way is through an API gateway such as OpenRouter, which uses the same format as the OpenAI API. Create a key, then send a request with the model ID sakana/sakana-namazu:
Prefer no code? Many tools in our AI tools directory run on models like this one.
More models from Sakana
Fugu Max is the cost-performance model in Sakana AI's Fugu family. Rather than a single monolithic model, Fugu is a learned multi-agent orchestration system: a language model trained to route...
Fugu Ultra is the higher-performance model in Sakana AI's Fugu family. Rather than a single monolithic model, Fugu is a learned multi-agent orchestration system: a language model trained to route...
Questions about Sakana Namazu
What is Sakana Namazu?
Sakana Namazu is a Japanese-specialized reasoning model from Sakana AI, based on Kimi K2.6 with additional training for Japanese language and business contexts. It is suited for Japanese instruction following,...
How big is the context window of Sakana Namazu?
Sakana Namazu can read up to 262,144 tokens in one request, roughly 196,608 words.
How much does Sakana Namazu cost?
Through OpenRouter, Sakana Namazu costs about $0.95 / 1M tokens for input and $4.00 / 1M tokens for output. Prices change, so check before large jobs.
Is Sakana Namazu open source?
Sakana Namazu does not have downloadable weights. You use it through Sakana or an API provider.
What can Sakana Namazu take as input?
Sakana Namazu accepts text, image, file and produces text.
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Specs and prices come from OpenRouter and the provider, and are refreshed daily. Last checked 11 Aug 2026.