SFX Engine vs H3 Max

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

SFX Engine compared with H3 Max
Detail	SFX Engine	H3 Max
What it does	AI sound effect generator that creates royalty-free SFX from text descriptions in seconds	AI video generator using MiniMax H3 Max for text-to-video and image-to-video creation
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Paid	Freemium
Pricing	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	Free account with initial credits; annual plans from $149/year (Basic: 14,400 credits) to $999/year (Max: 180,000 credits). Generation billed per second: H3 Max at 480P from 10 credits/second, 768P from 16 credits/second, 1080P from 32 credits/second; standard H3 at 480P 10, 768P 12, 2K 26, 4K 32 cr
Key features	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	Text-to-video and image-to-video generation 5-15 second video output duration Multiple resolution options up to 4K Optional beginning and ending frames for composition control Synchronized audio generation with video Prompt expansion controls for detail levels Character consistency across multiple shots Multiple aspect ratios including 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 Directed camera movement following descriptions Per-second credit billing with upfront cost display
What makes it different	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	Independent operation with transparent credit-based billing and account-owned storage Synchronized native audio generation in the same pass as video Strong prompt adherence and fast iteration with H3 Max model Failed renders automatically refunded in full credits Supports both English and Chinese prompts
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)	40 +1 (up) since last check	22 +1 (up) since last check
Trust Flow (Majestic)	26	14
Citation Flow (Majestic)	42	28
Referring domains (Majestic)	850	70

5 details filled in for both companies.

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