Products Models FLUX Upscale: 2K and 4K for Video FLUX Upscale takes any video and regenerates it at a higher resolution, up to native 4K, now available as its own FLUX Tool and endpoint. August 20, 2026 Read more

THE NEWS

What happened

Black Forest Labs has launched FLUX Upscale, a dedicated tool and API endpoint designed to regenerate video content at higher resolutions up to native 4K. The new model specifically addresses limitations of local upscalers when handling high-resolution broadcast and campaign formats, particularly for outputs from FLUX 3. It offers two distinct modes: 'Precise' for maintaining identity and detail consistency at a lower cost, and 'Creative' for pushing repair and detail generation further, albeit with potential changes to identity. The tool supports upscale factors of 1.5x, 2x, and 3x, effectively transforming HD inputs into 1080p, 2K, or 4K resolutions while fixing common artifacts like smudged faces or gridded textures.

CONTEXT

Why it matters

New from Black Forest Labs: FLUX Upscale is here! Regenerate any video up to native 4K, fixing smudged faces and texture artifacts in FLUX 3 outputs. Choose between Precise mode for identity consistency or Creative mode for maximum detail. Available now via API.

AT A GLANCE

Key facts

The main verified points:

• FLUX Upscale is available as a standalone tool and API endpoint from Black Forest Labs.
• The model can regenerate video from HD inputs up to native 4K resolution.
• It natively understands FLUX 3 output, fixing imperfections like smudged faces and texture artifacts.
• Two modes are available: 'Precise' (4 steps, $0.07/mp/s) for consistency and 'Creative' (8 steps, $0.10/mp/s) for enhanced detail.
• The tool supports upscale factors of 1.5x, 2x, and 3x.
• It is accessible via the BFL API and playground.