VELIN vs MelodyWiz

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

VELIN compared with MelodyWiz
Detail	VELIN	MelodyWiz
What it does	Pay-per-image AI image generation API	AI music transcription: convert audio to MIDI and sheet music, scan scores, detect song keys
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Paid	Freemium
Pricing	Standard models (Nano Banana Pro, Nano Banana 2, Nano Banana 2.1, GPT Image 2, GPT Image 2.5 Flare, GPT Image 2.5 Sunburst): ¥0.25 ($0.037) per image at 1K/2K/4K. Premium models (Nano Banana Pro+, Nano Banana 2+): ¥0.35 ($0.052). Image 2.5 Mid: ¥0.10 ($0.015) at 1K only. HD models (GPT Image 2 HD, G	Free: 5 transcription jobs daily. Downloads are one-time purchases: up to 2 pages $2.99, 3–9 pages $5.99, 10+ pages $9.99 for MusicXML + MIDI; Rehearsal Pack with practice MP3s and slow mixes $3 more. Credit packs: $9 unlocks 4 pieces, $19 unlocks 10. Practice Passes: $9.99 for 30 days or $29 for 90
Key features	12 image generation models including Nano Banana Pro, Nano Banana 2, GPT Image 2, and GPT Image 2.5 variants Support for 1K, 2K, and 4K resolutions Up to 14 reference images per request Asynchronous REST API with single API key Failed generations not charged Automatic deletion of prompts and images after 10 hours Card and USDT payment options	Transcribe audio files (MP3, WAV, FLAC, OGG) to MIDI and sheet music Scan sheet music PDFs and photos into editable MusicXML Detect song key, Camelot code and BPM Browser preview with highlighted notes before downloading Note-matching exercises with microphone or keyboard input Harmonic-ghost filter to remove phantom octave notes from transcription Quality metrics displayed on every transcription job
What makes it different	Pay-per-image pricing with no subscriptions or minimums Access to Google Nano Banana and OpenAI GPT Image models Low cost starting from $0.037 per image Cryptocurrency payment option with USDT Support for multiple payment methods including Stripe and Apple Pay	Tuned transcription engine with harmonic-ghost filter, not an API wrapper Honest quality metrics on every job showing notes detected and ghosts filtered Free daily use with no account required One-time payments per piece, no subscription required Professional notation engraving and MusicXML output for editing in music software
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 no change since last check	13 no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	17	13
Referring domains (Majestic)	4	1

5 details filled in for both companies.

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