Black Forest Labs releases video upscaler

Black Forest Labs has released FLUX Upscale — a FLUX Tool and API endpoint that regenerate video from 480p to native 4K, natively understand FLUX 3 output, and fix artifacts that generic upscalers miss.

Compiled by Sergey KostenchukPublished 2026-08-24Updated 2026-08-24

2026-08-24 Multimodal

🎨 Black Forest Labs releases video upscaler

FLUX Upscale is a separate FLUX Tool and API endpoint that regenerates video from 480p to native 4K. The tool natively understands FLUX 3 output and fixes what generic upscalers miss: blurred faces and mesh-like artifacts on water and grass textures.

🌍 The "last mile" of AI video is closed: for broadcast, advertising, and big screens, a ready 4K master is available without local GPUs. A ten-second clip costs $6–8.

👤 If you make AI video, this is a ready-made path from HD render to 4K: Black Forest Labs API or playground, 1.5x/2x/3x multiplier. Precise mode (4 steps, $0.07 per megapixel-second) preserves identity, Creative (8 steps, $0.10) gives more detail, but may change the face.

Source 1: https://bfl.ai/blog/flux-video-upscale Source 2: https://docs.bfl.ai/flux_tools/flux_video_upscale

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