MiniMax H3 vs SFX Engine

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

MiniMax H3 compared with SFX Engine
Detail	MiniMax H3	SFX Engine
What it does	Create 4–15 second videos from text, frames, and multimodal references with output up to 2K	AI sound effect generator that creates royalty-free SFX from text descriptions in seconds
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Paid	Paid
Pricing	Starter: $9.90 one-time for 370 credits (up to 5 five-second 2K videos). Creator: $29.90 one-time for 1,300 credits (up to 18 five-second 2K videos). Studio: $49.90 one-time for 2,500 credits (up to 35 five-second 2K videos). Business: $99.90 one-time for 5,550 credits (up to 79 five-second 2K video	Starter: $10/month or $8/month billed yearly for 500 credits. Creator: $25/month (50% off first month) or $20/month billed yearly for 4,000 credits. Pro: $90/month (50% off first month) or $72/month billed yearly for 15,000 credits. Each sound effect costs 3 credits. Browsing and downloading from th
Key features	Text-to-video generation from written prompts First and last frame control for guided video creation Multimodal reference support with images, videos, and audio Camera and motion control in prompts 4–15 second video duration options Up to 2K resolution output Support for JPG, PNG, WEBP, HEIC, and HEIF image formats Support for MP4 and MOV video formats Support for WAV and MP3 audio formats Watermark-free downloads	AI sound effect generation from text descriptions Sound effects up to 47 seconds long Background music creation DJ transition maker Stem splitter for music Royalty-free commercial license included Free public library of pre-made sounds API access on all plans Voiceover generation
What makes it different	Multimodal workflows combining text, images, videos, and audio for precise creative direction One-time credit purchases with no recurring subscription fees Purchased credits that never expire Independent platform offering flexible credit-based pricing	Generated sound effects are royalty-free for commercial use without licensing fees Sounds created from text descriptions are unique to your project Generate sounds in 5-15 seconds typically Supports diverse use cases including games, video, podcasts and music production Cancel anytime with no long-term commitment
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)	30 no change since last check	39 no change since last check
Trust Flow (Majestic)	24	26
Citation Flow (Majestic)	27	42
Referring domains (Majestic)	142	850

5 details filled in for both companies.

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