Feature and workflow comparison
Playtex wins when the job is fast AI source creation, PBR map-stack generation, library reuse, versioning, and engine-ready handoff. Quixel Mixer wins when the job requires legacy Megascans continuity, scan blending, Smart Materials, painting, Mixes, and custom exports from a desktop application.
For AI texture generation, Playtex treats generation as a core workflow. Mixer is better understood as a scan-based texturing and material-mixing application rather than a modern hosted AI texture generator.
For product status, Playtex is an active web workflow. Epic/Quixel released a final offline version of Mixer, and current coverage describes Mixer as discontinued or no longer receiving updates and support.
Pricing and setup
Quixel documentation describes Mixer as free, and current coverage says the final offline installer includes an option to download more than 800 Megascans assets for Mixer. That can be valuable for existing projects.
For new work, compare by workflow fit: active AI generation, setup time, material throughput, versioning, and how quickly you need normal, roughness, metallic, AO, height, and emission maps ready for a game engine.