Category API

OpenRouter is the fastest way to call Sakana Fugu without a Sakana account: same models, same per-token prices, one unified billing account, and keys with hard credit limits — the closest thing to a spending cap that exists for Fugu…

Fugu’s API looks familiar on purpose — OpenAI-compatible endpoints, a standard SDK workflow, bearer-token auth — and then diverges in ways that matter: parameters that are silently ignored, a Responses API that refuses conversation IDs, output caps that don’t cap…