data-archetype/cc12_imagenet21k_recap_hq_bucketedcc12 imagenet21k recap hq bucketed Title: cc12 imagenet21k recap hq bucketed Description: This ~18M rows dataset is a re upload of https://huggingface.co/datasets/gmongaras/CC12M and Imagenet21K Recap Highqual where the images have been pre bucketed into SDXL style aspect ratio buckets for target training at ~512^2 and ~256^2 pixels, and where about 7M rows were recaptioned with either Gemini or Ministral. To avoid re encoding the images they have been left untouched so cropping and resizing must be done at loading time Technical details This repository contains a bucketed shards export (uncompressed TAR shards). Format Format : bucketed shards v2 Created : 2026 01 10T15:53:34.486914+00:00 Export ID : export 2026 01 10T15:53:34.486914+00:00 Manifest : manifest.json Image mode : passthrough jpeg Directory layout: manifest.json (global metadata + per bucket shard listing) buckets/ /shard .tar Each TAR shard contains 3 files per sample: .jpg (JPEG bytes; either re encoded RGB JPEG or source JPEG passthrough depending on image mode ) .txt (caption text, UTF 8, newline terminated) .json (per sample metadata: w , h , jpeg , image mode , caption variant , caption selector index , caption…

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