SFX Engine vs Z-Image

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 Z-Image
Detail	SFX Engine	Z-Image
What it does	AI sound effect generator that creates royalty-free SFX from text descriptions in seconds	Free AI image generation platform with lightning-fast 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: 10 credits per day. Premium: $7/month (2,000 credits per month) or $2.45 per 1,000 credits annually. Elite: $12/month (5,000 credits per month) or $1.98 per 1,000 credits annually. Video Pro: $50/month (25,000 credits per month for video generation). Pay as you go also available at $3.50 per 1
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	AI Image Generation from text prompts 4K print-quality output Bilingual prompt support in English and Chinese Image editing with natural language Prompt extraction from images Creative Engine for prompt expansion Multiple AI models including GPT Image 2 and Qwen Image 3 Video generation with AI Hundreds of artistic styles 2-5 second generation speed
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	Lightweight 6B parameter model optimized for fast generation 37% better Chinese language accuracy than alternatives DiT architecture optimization for flagship quality Open-source model that can run locally Actually free with transparent pricing and clear safety rules
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	30 no change since last check
Trust Flow (Majestic)	26	13
Citation Flow (Majestic)	42	31
Referring domains (Majestic)	850	158

5 details filled in for both companies.

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