Seed Audio vs Ultrademo

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

Seed Audio compared with Ultrademo
Detail	Seed Audio	Ultrademo
What it does	Free AI audio generator and text-to-speech tool for creating voiceovers, multi-speaker conversations, music, sound effects, and complete audio scenes	Studio-quality demo videos made from your real product by AI
Stage	Not given	MVP
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Freemium	Freemium
Pricing	Free tier available. Monthly plans: Basic $9.9/mo (450 credits, ~15 audio minutes), Pro $19.9/mo (1,200 credits, ~40 audio minutes), Max $49.9/mo (3,600 credits, ~120 audio minutes). Annual plans save up to 50%. Credit packs at 30 credits/min for paid usage. All paid plans include commercial license	The skill is free. The app is in early access with one free hosted video to start; pricing to be announced.
Key features	Complete audio scenes with voices, emotion, dialogue, sound effects, music and atmosphere in single generation Multi-speaker dialogue for podcasts, dramas and character scenes Voice-guided creation using reference audio Story voiceovers with narration, emotion, pacing, music and atmosphere Cinematic sound scenes with sound effects, movement and space Max 2 minute audio per generation Pitch, speed and volume adjustment MP3 export and generation history Commercial use license Duration-based billing model	Creates videos from real product screens without stock footage Four video types: launch, explainer, spotlight and ad Multiple formats from one project: landscape, vertical and 15 or 30 second cuts AI writes story with hook, problem and resolution Checks every frame before showing the video Edit by commenting directly on the video Generates thumbnails in every platform size Only changed scenes are rebuilt when UI updates Works with Claude Code, Codex, Gemini CLI, Figma and ElevenLabs Free voices included with ElevenLabs integration
What makes it different	One workspace for complete audio creation without separate voice tracks, sound libraries or manual mixing Reference audio guidance to control tone, style, rhythm and atmosphere Generate full audio scenes from single prompt No credit card required to start creating	Free and open source with no per-video cost Runs on your computer using your own Claude plan Every format generated from one project automatically Smart rebuilding when product changes Professional voice and music mixing included
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)	19 +1 (up) since last check	11 +2 (up) since last check
Trust Flow (Majestic)	21	0
Citation Flow (Majestic)	12	15
Referring domains (Majestic)	84	6

5 details filled in for both companies.

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