Hi everyone, I have been building a health coach app called Razen Health for the last four-five months. The app uses a voice agent. Users can talk to it and get responses in real time. I first used ElevenLabs for this feature. It is a good product with many features. However, the cost was too high for my use case. I am a solo developer, so I need to control infrastructure costs. I decided to build my own solution. I call it Razen Voice. Razen Voice provides the core features that most apps need: → Full voice agent support. → English, Mandarin Chinese, Japanese and Spanish. → Multiple voice styles. → Simple integration through a JSON configuration. → Up to 50x lower cost than my previous setup. One feature I want to focus on is model improvement. Razen Voice can improve the model for each application as its user base grows. There are two ways to do this: Automatic improvement based on user feedback and usage data. Human-in-the-loop improvement, where people review data and help improve the model. This allows each application to improve voice accuracy for its own use case. The goal is to keep this improvement process simple and maintain the cost advantage. I do not plan to replace ElevenLabs. It has many features that some applications need. However, many applications do not need all these features. They need a voice agent that works well and has a low operating cost. What is next? I plan to make Razen Voice available to other developers. The infrastructure is ready. I want to find developers who are interested in testing it and providing feedback. Here is a live demo running in Razen Health and also I used AI to rewrite my post.   submitted by   /u/ServiceKindly [link]   [comments]