Noesion Radarnoesion.ai
Release2026-08-03

Sakana AI began selling its Japanese-language model Namazu as an API, after previously offering it only inside its own chat product. The model is built on Moonshot AI's open Kimi K2.6 and was further trained on in-house data for Japanese business use, with web search and code execution included. It works with existing OpenAI-compatible code by changing the endpoint address, and the company reports gains over the base model on Japanese benchmarks.

What changed

The Namazu model was only usable inside Sakana AI's own Sakana Chat product.

What it unlocks

Calling a Japanese-tuned language model from a company's own products by changing the address in existing OpenAI-compatible code.

  • FairPoliticsQA: 34.10% to 56.30%
  • JFBench: 200 samples each at constraint counts 1, 2, 4 and 8
  • roughly 1,000 fish in the light-show demo

What you need to act on it

  • an account on the Sakana AI API console
  • an API key
  • enterprise deployments require contacting the company

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