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Topaz Gigapixel vs ON1 Resize AI: catalog facts
Topaz Gigapixel	ON1 Resize AI
Paid Commercial software sold by Topaz Labs, with cloud credits for cloud rendering.	Paid Paid software with a free trial.
Windows, macOS	Windows, macOS
Upscaling up to 16x pixels Face recovery for portraits and old photos	Enlarges photos up to 10x Combines AI upscaling with fractal-based enlargement
Paid commercial software Local rendering needs capable hardware	Paid, closed-source software Focused on enlargement only, not general editing
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.