> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.empiriolabs.ai/providers/ace-step/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.empiriolabs.ai/_mcp/server. # ACE-Step > 1 ACE-Step model on EmpirioLabs, callable through one OpenAI-compatible API with shared billing and logs. ![ACE-Step](/_fern-img/89942d8e217dff98931322c9f52fbf6c9d14b296b3f433f28cb044ae624e2863.webp) ## ACE-Step ## Models from ACE-Step ![ACE-Step 1.5 XL](https://media.empiriolabs.ai/model-logos/ace-step-1-5-xl.png) [ACE-Step 1.5 XL](/models/ace-step-1-5-xl) Open-source music generation model for text-to-song and lyric-guided audio, with fast 8-step XL Turbo inference for controllable song iteration. > 1 ACE-Step model on EmpirioLabs, callable through one OpenAI-compatible API with shared billing and logs.