AI Image Upscaler — every model, compared

Upsampler's in-house creative upscaler powered by Flux. Adds plausible new detail at higher resolution rather than just enlarging existing pixels — the adjustable creativity slider lets you dial between faithful upscaling and aggressive detail enhancement. Built for AI-generated images, stylized work, and any upscale where the source benefits from a quality lift, not just a resolution lift. Only available on Upsampler.

Upsampler's custom Stable Diffusion-powered upscaler. Preserves the overall composition while regenerating fine detail — good for upscaling that should keep the source recognizable while filling in plausible texture and detail. A different aesthetic from the Flux upscaler; pick whichever style fits the source. Only available on Upsampler.

ByteDance's SeedVR2 — a lightweight diffusion upscaler that prioritizes faithfulness to the source over creative interpretation. The right choice for documentary preservation, ecommerce product upscaling, and any work where 'keep the original character' matters more than 'add new detail'.

The larger variant of ByteDance's SeedVR2 with higher fidelity for archival-grade outputs. Same source-preserving philosophy as the standard model — no creative reinterpretation, no invented detail — just better recovery of fine texture and edge sharpness for hero archival pieces.

Pruna AI's optimized hyperrealistic image enhancer. Balanced speed-quality for general-purpose upscaling — a good middle ground between fast GAN-based options and slower premium diffusion upscalers. Strong for photorealistic content where you want a quality lift without the cost of SeedVR 2 Large.

Traditional GAN-based upscaling — fast, low-cost, and faithful to the source. Doesn't add invented detail like diffusion-based upscalers; preserves what's there at higher resolution. The pragmatic choice for high-volume batch upscaling where speed and credit cost matter more than aesthetic lift.