Sakura AI Engine is an AI inference API platform from Sakura Internet that provides access to multiple foundation models through a single API. Operating entirely in domestic data centers, it lets companies handle confidential data within Japan while adding generative AI features to their applications.

The platform offers text generation, audio transcription, embeddings, and RAG capabilities through standard REST APIs, with no infrastructure setup required.

A free usage tier is available, allowing teams to test the service without initial costs and making it ideal for small projects and proof-of-concept testing before financial commitment.