ACE-Step 1.5 Music Generation

Open-source music generation via tools/music_gen.py.

Cloud providers:

• acemusic (default) — Official ACE-Step cloud API with XL Turbo (4B) model + 5Hz LM thinking mode. Free API key from acemusic.ai/api-key. No GPU required.
• modal — Self-hosted ACE-Step 2B Turbo on Modal. Requires MODAL_MUSIC_GEN_ENDPOINT_URL.
• runpod — Self-hosted ACE-Step 2B Turbo on RunPod. Requires RUNPOD_ACESTEP_ENDPOINT_ID.

Setup

# acemusic (recommended — free, best quality, no GPU)
echo "ACEMUSIC_API_KEY=your_key" >> .env
# Get key at https://acemusic.ai/api-key