Add files using upload-large-folder tool

README.md

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+---
+license: cc-by-nc-4.0
+task_categories:
+  - text-to-video
+tags:
+  - video
+  - video-pair
+  - reward-model
+  - dpo
+  - t2v
+  - broad-pair
+pretty_name: DenseDPO T2V Broad-Pair Dataset (v2)
+size_categories:
+  - 1K<n<10K
+configs:
+  - config_name: default
+    data_files:
+      - split: train
+        path: data/train-*.parquet
+dataset_info:
+  features:
+    - name: pair_id
+      dtype: string
+    - name: tier
+      dtype: string
+    - name: model_a
+      dtype: string
+    - name: model_b
+      dtype: string
+    - name: video_a
+      dtype:
+        video: {}
+    - name: video_b
+      dtype:
+        video: {}
+    - name: stem
+      dtype: string
+    - name: prompt
+      dtype: string
+    - name: task
+      dtype: string
+  splits:
+    - name: train
+      num_examples: 6519
+---
+
+# DenseDPO T2V Broad-Pair Dataset (v2)
+
+Cross-model **text-to-video (T2V)** generation pairs for training video reward
+models (RM) and DPO-style preference learning.
+
+The HF Dataset Viewer renders each row as **prompt + two videos side-by-side**.
+
+## Generation task
+
+All videos are generated **T2V** from a shared text prompt. For every pair,
+both videos share the same prompt, so the primary comparison axis is the model
+identity itself.
+
+## Plan-A tier structure
+
+Models are grouped into two resolution tiers; pairs only form **within** a tier
+to keep resolution as a constant signal for the RM.
+
+| Tier | Models | Resolution | Frames @ FPS |
+|------|--------|------------|--------------|
+| 480p (low-res)  | Helios-Distilled, LongCat-Video | 384×640 / 480×832 | 99@16 / 93@15 |
+| 720p (high-res) | LTX-Video-2.3-distilled, SkyReels-V2, Wan-2.2 | 704×1280 / 720×1280 | 121@24 |
+
+Pair-types (one prompt → exactly one pair-type):
+- 480p: `(helios, longcat)`
+- 720p: `(ltx, skyreels)`, `(ltx, wan)`, `(skyreels, wan)`
+
+## File layout
+
+```
+t2v_data_v2_hub/
+├── README.md
+├── data/
+│   └── train-*.parquet
+└── pairs_summary.json
+```
+
+## Schema
+
+| Column | Type | Notes |
+|---|---|---|
+| `pair_id` | string | unique pair id |
+| `tier` | string | `"480p"` or `"720p"` |
+| `model_a`, `model_b` | string | alphabetically sorted within a pair |
+| `video_a`, `video_b` | **Video()** | mp4 bytes embedded in parquet; renders inline in HF Viewer |
+| `stem` | string | filename-derived prompt stem |
+| `prompt` | string | shared text caption from the manifest |
+| `task` | string | always `"T2V"` |
+
+## Loading
+
+```python
+from datasets import load_dataset
+
+ds = load_dataset("<hf-user>/t2v_data_v2", split="train")
+print(ds[0]["prompt"])
+print(ds[0]["video_a"])   # decord/pyav-decoded Video object
+print(ds[0]["video_b"])
+```
+
+When loading from disk:
+
+```python
+from datasets import load_dataset
+ds = load_dataset("parquet", data_files="t2v_data_v2_hub/data/train-*.parquet",
+                  split="train")
+```
+
+Video bytes are embedded directly in the parquet shards, so no `videos/` folder is required.
+
+## Counts
+
+See `pairs_summary.json` for the exact per-pair-type breakdown.
+
+### This build
+
+- `(helios, longcat)` [480p]: **880** pairs
+- `(ltx, skyreels)` [720p]: **800** pairs
+- `(ltx, wan)` [720p]: **800** pairs
+- `(skyreels, wan)` [720p]: **800** pairs
+
+- Total pairs: **3280**
+- Orphan stems (1 model only, skipped): 0
+- Cross-tier pairs (skipped): 0
+- Stems with 3+ models (skipped): 0
+
+
+## Pushing to HF Hub
+
+```bash
+hf upload-large-folder <hf-user>/t2v_data_v2 t2v_data_v2_hub/ --repo-type=dataset
+```
+
+
+## Selected T2V Source
+
+Selected T2V pairs from selected_t2v_filtered.json are included in the same train split with `task` set to `T2V`. Video bytes are embedded in 12 parquet shards; no `videos/` folder is required.

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pairs_summary.json

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+{
+  "n_manifest_rows": 3280,
+  "n_pairs_emitted": 6519,
+  "n_invalid_manifest_rows": 0,
+  "n_missing_video_paths": 0,
+  "n_orphan_stems_single_model": 0,
+  "n_cross_tier_pairs_skipped": 0,
+  "n_unexpected_triple_or_more": 0,
+  "per_pair_type_counts": [
+    {
+      "tier": "480p",
+      "model_a": "helios",
+      "model_b": "longcat",
+      "count": 880
+    },
+    {
+      "tier": "720p",
+      "model_a": "ltx",
+      "model_b": "skyreels",
+      "count": 800
+    },
+    {
+      "tier": "720p",
+      "model_a": "ltx",
+      "model_b": "wan",
+      "count": 800
+    },
+    {
+      "tier": "720p",
+      "model_a": "skyreels",
+      "model_b": "wan",
+      "count": 800
+    }
+  ],
+  "total_videos_referenced": 13038,
+  "manifest_file": "/Users/code/Downloads/re/t2v_data_new.json",
+  "n_dropped_t2v_pairs": 3280,
+  "n_selected_t2v_pairs": 3239,
+  "selected_t2v_pair_type_counts": [
+    {
+      "model_a": "gen3-black-en",
+      "model_b": "luma-black-en",
+      "count": 14
+    },
+    {
+      "model_a": "gen3-black-en",
+      "model_b": "pika-black-en",
+      "count": 7
+    },
+    {
+      "model_a": "gen3-black-en",
+      "model_b": "pixverse-black-en",
+      "count": 7
+    },
+    {
+      "model_a": "gen3-black-en",
+      "model_b": "可灵-black-en",
+      "count": 16
+    },
+    {
+      "model_a": "gen3-en",
+      "model_b": "gen3-en",
+      "count": 2
+    },
+    {
+      "model_a": "gen3-en",
+      "model_b": "luma-en",
+      "count": 24
+    },
+    {
+      "model_a": "gen3-en",
+      "model_b": "pika-en",
+      "count": 15
+    },
+    {
+      "model_a": "gen3-en",
+      "model_b": "pixverse-en",
+      "count": 8
+    },
+    {
+      "model_a": "gen3-en",
+      "model_b": "vidu-en",
+      "count": 944
+    },
+    {
+      "model_a": "gen3-en",
+      "model_b": "可灵-en",
+      "count": 968
+    },
+    {
+      "model_a": "hunyuanvideo",
+      "model_b": "moviegen_480p",
+      "count": 52
+    },
+    {
+      "model_a": "luma-black-en",
+      "model_b": "pika-black-en",
+      "count": 10
+    },
+    {
+      "model_a": "luma-black-en",
+      "model_b": "pixverse-black-en",
+      "count": 11
+    },
+    {
+      "model_a": "luma-black-en",
+      "model_b": "可灵-black-en",
+      "count": 10
+    },
+    {
+      "model_a": "luma-en",
+      "model_b": "pika-en",
+      "count": 15
+    },
+    {
+      "model_a": "luma-en",
+      "model_b": "pixverse-en",
+      "count": 17
+    },
+    {
+      "model_a": "luma-en",
+      "model_b": "可灵-en",
+      "count": 16
+    },
+    {
+      "model_a": "pika-black-en",
+      "model_b": "pixverse-black-en",
+      "count": 10
+    },
+    {
+      "model_a": "pika-black-en",
+      "model_b": "可灵-black-en",
+      "count": 6
+    },
+    {
+      "model_a": "pika-en",
+      "model_b": "pixverse-en",
+      "count": 23
+    },
+    {
+      "model_a": "pika-en",
+      "model_b": "可灵-en",
+      "count": 7
+    },
+    {
+      "model_a": "pixverse-black-en",
+      "model_b": "可灵-black-en",
+      "count": 6
+    },
+    {
+      "model_a": "pixverse-en",
+      "model_b": "可灵-en",
+      "count": 7
+    },
+    {
+      "model_a": "vidu-en",
+      "model_b": "vidu-en",
+      "count": 1
+    },
+    {
+      "model_a": "vidu-en",
+      "model_b": "可灵-en",
+      "count": 1041
+    },
+    {
+      "model_a": "可灵-en",
+      "model_b": "可灵-en",
+      "count": 2
+    }
+  ]
+}