FlashVSR
A fast, self-hosted video upscaler for footage that already looks decent and just needs more resolution. It adds sharpness and detail at a low cost per second, and its temporal model keeps motion stable across frames. Best when the source is reasonably clean to begin with. For very low-resolution or heavily degraded video, SeedVR2 is the stronger, pricier choice.
At a glance
- Price
- 0.5 Credits/MP·sec
- Our rating
- Speed
- Average speed
- Max resolution
- 4.2 MP
- Max input length
- 3 min
- Type
- Precise
What FlashVSR is best for
How FlashVSR performs
Strengths
- low cost per second
- temporal model keeps motion stable
- good for clean, already-decent sources
Limitations
- not built to rescue very low-res or degraded video
- less faithful detail than SeedVR2 on hard sources
How to prompt FlashVSR
Practical tips to get the most out of FlashVSR.
- 01no prompt needed
- 02use for general video upscaling workflows
Tips are tuned for FlashVSR specifically.
Made with FlashVSR
Alternatives to FlashVSR
Other models on Upsampler that cover similar ground.
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.
GAN
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.
Frequently asked questions
What is FlashVSR?
A fast, self-hosted video upscaler for footage that already looks decent and just needs more resolution. It adds sharpness and detail at a low cost per second, and its temporal model keeps motion stable across frames. Best when the source is reasonably clean to begin with. For very low-resolution or heavily degraded video, SeedVR2 is the stronger, pricier choice.
How much does FlashVSR cost on Upsampler?
0.5 credits per megapixel-second. No subscription, credits never expire.
What is the maximum output resolution?
Up to 4.2 megapixels per generation.
What are alternatives to FlashVSR?
Common alternatives: Seed VR 2 Large, GAN.
Can I try FlashVSR for free?
You can try a free, no-signup version of our ai video upscaler. Note that the free version may use a different, lighter model rather than FlashVSR itself.