rinna Inc. was a Japanese AI company that developed Japanese-optimized large language models and conversational AI services. Its commercial products, including the rinna Developers API, the Tamashiru Enterprise dialogue platform, and the Koemotion text-to-speech service, are no longer available. The company now focuses on its consumer AI character, AI Rinna.

Limitations

This service is no longer available. The rinna Developers API domain no longer resolves, and the Tamashiru Enterprise and Koemotion product pages return errors. Only the AI Rinna character remains active. See the official rinna website, which no longer lists the commercial AI products.