Lacuna - 2026 Pricing, Features, Reviews & Alternatives

Lacuna is a web-based AI music platform for people who need finished music without a studio. Its AI Song Generator turns a text description, your own lyrics, or an audio reference into a complete track with vocals and instrumentals, usually in about 30 seconds. Its AI Lyrics Generator writes and refines lyrics with structure, rhyme, and stylistic guidance, then feeds them straight into a song.

Two ways to work: chat with a music agent that asks about style, mood, and structure, or open the custom form and set genre, vocals, lyrics, title, and model yourself. Almost any genre is supported - pop, rock, hip-hop, country, jazz, classical, electronic - with no musical training required. Several song models are available, and the same prompt can be sent to more than one so you can compare results and keep the version that fits.

Around the AI Song Generator and AI Lyrics Generator, Lacuna covers the production work that follows:

- Stem separation splits any song into isolated vocals, drums, bass, guitar, and piano for remixing, sampling, karaoke, or practice.

- AI mastering applies loudness and tonal balance, with A/B comparison against the original.

- Word-level timed lyrics and lyric-video export turn a finished song into shareable video.

- MIDI tools generate MIDI from a text prompt or an image, and convert sheet-music PDFs into playable MIDI.

- Songwriting utilities include a rhyme generator, syllable counter, and BPM and key detection.

- Album-cover art is generated from a prompt or reference image in several aspect ratios.

- A long-form AI radio station streams instrumental music, nature recordings, and steady noise for focus, sleep, and sound masking.

Teams that need music inside their own systems can use the Lacuna API, plus an open-source SDK, CLI, and MCP server for scripted and agent-driven generation.

The interface runs in 9 languages: English, Simplified and Traditional Chinese, Japanese, Korean, Spanish, French, German, and Portuguese. New accounts get free monthly credits; paid plans add more credits, priority processing, and a commercial license with full copyright to the tracks you generate.