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SoCaptions vs AI Music API

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

SoCaptions compared with AI Music API
DetailSoCaptions logo SoCaptionsAI Music API logo AI Music API
What it doesAI video caption generator with word-level timing and MP4 export for short-form video platforms AI music generation API for developers to integrate into apps and products
StageNot given Not given
FoundedNot given Not given
Based inPL Not given
Pricing modelFreemium Freemium
PricingFree tier: 5 minutes of transcription, edit-only (no export). Pro monthly: $5/month with 100 minutes of transcription and 100 minutes of MP4 export per month. Pro yearly: $50/year (pay 10 months, get 12). Free plan with 30 credits included; Starter plan $0/month with 2,500 credits; Pro plan $0/month with 7,500 credits; Scale plan $0/month with 35,000 credits; Enterprise custom pricing. Pay-as-you-go credits at $0.08 per 10 credits. Sonic costs 14 credits per generation (produces 2 songs), Producer co
Key features
  • Word-level AI timing for precise caption synchronization
  • AI transcription with automatic language detection (99 languages)
  • Viral-ready caption presets (Bold Outline, Box, Cinematic, Karaoke, Emphasis, Animated)
  • Burned-in MP4 export with no watermark
  • SRT and VTT subtitle format export
  • Drag-and-drop editor with word-level timing adjustment
  • Fast transcription (12 seconds for 60-second clip)
  • Support for large video files (up to 5 GB)
  • Free subtitle conversion tools (SRT, VTT, ASS formats)
  • Safe zone preview for TikTok and Instagram Reels
  • Vocal music generation from text prompts
  • Instrumental music generation
  • Extend music tracks
  • Cover music generation
  • Replace song sections
  • Swap sound elements
  • Swap vocals
  • Multiple AI models (Sonic and Producer)
  • Commercial music rights included
What makes it different
  • Word-level caption timing instead of block-level for tighter rhythm and precise control
  • No watermark on exported videos; clean MP4s ready to publish immediately
  • Burned-in captions survive downloads, reposts, and all players without separate subtitle files
  • Free tier with 5 minutes of editing; no credit card required to try
  • 99-language auto-detection including mixed-language video support
  • Fast 30-second generation time with optimized infrastructure
  • No watermarks on generated songs
  • Commercial use rights for all generated content
  • Affordable pay-as-you-go pricing from $0.08 per generation
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)5 −2 (down) since last check50 no change since last check
Trust Flow (Majestic)1922
Citation Flow (Majestic)1432
Referring domains (Majestic)472684

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