Because Fugu is not an independent model. They just use multiple existing SaaS models from OpenAI, Anthropic etc in background, gather response and generate results based on these response.

They claims that combining the results of multiple AI models and generate final result by using their in-house proprietary model improve the quality than using the single backend model.

It cause all sorts of doubts like: is their in-house model really exists? Is their in-house model really capable?

Personally, even if their claim is correct, such feature can be easily implemented in client side like Claude Code etc, using the equally capable model from background model to generate the final result.

I smell something fishy on their service.