Fugu and Fugu-Ultra become selectable models inside OpenCode
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Fugu is now available on OpenCode! ✨ When our team was developing Fugu’s multi-agent orchestration, OpenCode was our tool of choice to verify our models. We share a core philosophy with the OpenCode team: the future of coding agents should be an open, collective ecosystem.

You can now use Fugu inside @opencode, the tool that helped build it: Sakana AI: https://t.co/Qh6ihVHbXU Fugu: https://t.co/v8He1kl6eP Fugu-Ultra: https://t.co/KceTB1fh1d Fugu API: https://t.co/aDEFyySWlS 🐡🐡🐡
@opencode https://t.co/kQvzea5mDf
Context
Sakana AI announced that Fugu, its service that coordinates several models behind one API, and Fugu Ultra could be used inside OpenCode, an open-source coding . Its July 2026 thread also says the team had used OpenCode to verify models while developing Fugu.
The integration gives developers a coding-client route to the Fugu service. OpenCode supplies the working environment, while Fugu supplies model orchestration behind requests. This brings the two systems together without establishing that the integration itself improved coding performance.
- AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
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