sakana/fugu-ultraThe 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-ultra:
Prefer no code? Many tools in our AI tools directory run on models like this one.
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...
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...
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...
Fugu Ultra can read up to 1,000,000 tokens in one request, roughly 750,000 words.
Through OpenRouter, Fugu Ultra costs about $5.00 / 1M tokens for input and $30.00 / 1M tokens for output. Prices change, so check before large jobs.
Fugu Ultra does not have downloadable weights. You use it through Sakana or an API provider.
Fugu Ultra accepts text, image and produces text.
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Specs and prices come from OpenRouter and the provider, and are refreshed daily. Last checked 24 Jun 2026.