Sakana AI's "Fugu" from a Claude user's view — orchestration as a product, and where it likely breaks down

Hi all — Japanese university student here (apologies for any awkward phrasing, English isn't my first language). Sakana AI shipped Fugu / Fugu Ultra on June 22. Rather than just asking "is it good?", I want to share what I actually dug into and propose a specific lens for discussion, since I think this release is interesting precisely because it isn't a frontier model in the usual sense. What it actually is (my reading): Fugu is not a new foundation model — it's an orchestrator that is itself an LLM, traine