Flux
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.
At a glance
- Price
- 1 Credit/MP
- Our rating
- Max resolution
- 100 MP
- Type
- Creative
What Flux is best for
How Flux performs
Strengths
- creative upscaling that adds plausible detail
- Upsampler-built Flux integration not available elsewhere
- good for stylized work
Limitations
- creative bias means it may diverge from source
- less suited for documentary preservation
How to prompt Flux
Practical tips to get the most out of Flux.
- 01use the creativity slider thoughtfully — high creativity diverges more
- 02describe desired detail level
- 03test with low creativity first for documentary work
Tips are tuned for Flux specifically.
Made with Flux
Alternatives to Flux
Other models on Upsampler that cover similar ground.
Stable Diffusion (upscale)
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.
Seed VR 2 Small
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'.
Seed VR 2 Large
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.
Frequently asked questions
What is Flux?
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.
How much does Flux cost on Upsampler?
1 credits per megapixel. No subscription, credits never expire.
What is the maximum output resolution?
Up to 100.0 megapixels per generation.
What are alternatives to Flux?
Common alternatives: Stable Diffusion (upscale), Seed VR 2 Small, Seed VR 2 Large.
Can I try Flux for free?
You can try a free, no-signup version of our ai image upscaler. Note that the free version may use a different, lighter model rather than Flux itself.