ElevenLabs Music Finetunes API
Train a custom music model on your own reference audio.
ElevenLabs added a Music Finetunes API: upload your own reference audio, train a custom music model, then pass a finetune_id to the standard music generation methods in the JS and Python SDKs (v2.59.0). The goal is a consistent soundtrack style locked to your own references instead of generic prompt output. The same update gave ConvAI agents a read-only RAG query endpoint against their knowledge base, which is useful if you want NPC dialogue grounded in your game's lore. This is developer-facing plumbing rather than a new app, so it fits teams already generating audio through the API. Check music quality and the licensing terms for anything you plan to ship before you build a soundtrack on it.
ElevenLabs
Best for placeholder or shipped voice work when you can't hire a full VO cast.