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/fugu-maxHow to use Fugu Max 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/fugu-max:
Prefer no code? Many tools in our AI tools directory run on models like this one.
More models from Sakana
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,...
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 Fugu Max
What is Fugu Max?
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...
How big is the context window of Fugu Max?
Fugu Max can read up to 1,000,000 tokens in one request, roughly 750,000 words.
How much does Fugu Max cost?
Through OpenRouter, Fugu Max costs about $2.00 / 1M tokens for input and $6.00 / 1M tokens for output. Prices change, so check before large jobs.
Is Fugu Max open source?
Fugu Max does not have downloadable weights. You use it through Sakana or an API provider.
What can Fugu Max take as input?
Fugu Max 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 Sep 2026.