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Lacuna vs Sonix

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Lacuna compared with Sonix
DetailLacuna logo LacunaSonix logo Sonix
What it doesAI song generator that turns ideas or lyrics into complete songs with vocals, then lets you remix, extend, split stems, and master on one canvas AI transcription and translation platform that converts audio and video to text with 99% accuracy in 54+ languages
StageNot given Established
FoundedNot given 2017
Based inNot given US
Pricing modelFreemium Freemium
PricingFree: 120 credits per month, no card required. Basic: $114/year (or $9.50/month), 2,500 monthly credits. Pro: $294/year (or $24.50/month), 7,500 monthly credits, includes downloadable license PDF. Ultra: $594/year (or $49.50/month), 25,000 monthly credits, includes downloadable license PDF and unlim Pay as You Go: $10/hour; Core: $25/month or $275/year (5 hours/month transcription, 5 hours/month AI analysis, 25 GB storage); Advanced: $50/month or $550/year (20 hours/month transcription, 25 hours/month AI analysis, 50 GB storage); Pro: $80/month or $880/year (40 hours/month transcription, 100 ho
Key features
  • Generate complete songs with AI vocals, lyrics, melody, and instrumentation in any genre
  • Multiple AI models: Aether (wide styles), Reverie (lyrics sung exactly as written), Echo (structured songs), Cadence (melody-based)
  • Remix, extend, and rewrite specific sections while keeping lyrics time-aligned
  • Split tracks into 2, 4, or 6 stems (vocals, drums, bass, instruments)
  • AI mastering on the same canvas with reference sound matching
  • Train and use your own singing voice on new songs or swap onto existing tracks
  • Hum a melody or upload MIDI file to build a full song around it
  • Add instrumentation to a vocal or vocals to a beat
  • Support for 10+ vocal languages with Reverie model
  • Commercial license included on all paid plans; Pro and Ultra include downloadable license certificate
  • 99% transcription accuracy in 54+ languages
  • Speaker diarization with automatic speaker identification
  • AI-powered summaries, chapters, and sentiment analysis
  • Automated subtitles and captions with multiple export formats
  • In-browser audio and text editor with word-level timestamps
  • Full-text search across entire transcript libraries
  • Multi-user collaboration with permission controls
  • Integration with Zoom, Teams, Google Meet, and Adobe Premiere
  • SOC 2 Type II certified with AES-256 encryption
  • HIPAA compliance for healthcare organizations
What makes it different
  • Can edit specific sections on the waveform without regenerating the entire song
  • Available in 9 languages for global audience
  • Works for producers, songwriters, content creators, and independent artists without requiring music knowledge
  • 90% cost reduction versus manual transcription at $10/hour versus $100+/hour
  • Transcription 10x faster than manual at 10 minutes versus 2-3 days
  • Structured conversation objects convert transcripts into searchable, audit-ready intelligence
  • Enterprise-grade security with SOC 2, HIPAA, and zero training policy on customer data
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)30 +1 (up) since last check74 no change since last check
Trust Flow (Majestic)1517
Citation Flow (Majestic)3564
Referring domains (Majestic)1913280

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