Checksub 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.

Checksub compared with Z-Image
Detail	Checksub	Z-Image
What it does	AI-powered subtitle and dubbing generator for video and audio content localization	Free AI image generator with accurate text rendering in 20+ languages
Stage	Established	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free trial with 1 hour of video translation credits. Paid plans: Junior $18/month (2 hours credits) or $12/month annually (24 hours credits); Starter $59/month (5 hours credits) or $48/month annually (60 hours credits); Enterprise from $299/month with custom credits. Credits are consumed at differen	Free to try online with limited credits. One-time purchase plans: Starter Pack $9.99 (reduced to $6.99 with yearly billing, 500 credits valid 365 days); Creator Pack $29.99 (reduced to $16.99, 1,650 credits plus 10% bonus); Pro Pack $79.99 (reduced to $41.99, 4,800 credits). All plans include commer
Key features	Auto-subtitles generation using advanced AI Translation in over 200 languages AI voice cloning in 30 languages Voice isolation to separate dialogue from background audio Subtitle styling and animation customization Script to subtitles conversion with synchronization Burn-in subtitle export and subtitle file formats Lip-sync technology (Beta) Advanced online editor for subtitle and dubbing refinement YouTube channel integration and social media optimization	Sub-second generation time (0.5 seconds) Dual-language support for English and Chinese prompts Lightweight 6B parameters model Multiple aspect ratio options Negative prompts to remove unwanted elements Seed control for iteration History gallery with local auto-save Privacy-focused (no training data use) Image upscaling with Hires Fix ComfyUI integration ready
What makes it different	6 years of development focused specifically on subtitling quality and accuracy Translation workflow designed specifically for subtitles rather than generic translation Preserves original audio background and ambient sounds while replacing only vocals Immediate subtitle generation with optional post-editing for rapid deployment	Only AI generator with accurate text rendering in 20+ languages FLUX-level quality at 10x the speed Free for commercial use under Apache 2.0 license Runs on consumer GPUs with only 6B parameters Generates images in under a second with Turbo model
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)	54 no change since last check	27 −1 (down) since last check
Trust Flow (Majestic)	16	3
Citation Flow (Majestic)	35	24
Referring domains (Majestic)	545	57

5 details filled in for both companies.

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