AVIF encoding speed — the numbers nobody talks about
Serhii Kalyna
Everyone talks about how small AVIF files are. Almost nobody talks about what it costs to generate them in production. I run a free image converter built on Rust + libvips. After processing thousands of conversions, here are the numbers that changed how I think about format choice. The compression story you already know AVIF beats WebP on file size. For photos and gradients: AVIF saves ~50% vs JPEG (median across 600 photos) WebP saves ~31% vs JPEG At the same DSSIM score, AVIF produces files ~5