---
license: apache-2.0
task_categories:
- image-text-to-text
tags:
- gui-agent
- android
- androidworld
- mobile-use
- reasoning
- cot
- phone-portrait
size_categories:
- 10K<n<100K
---

# GUI-Libra Reasoning (CoT) SFT — PHONE-PORTRAIT

Phone-portrait-only filter of the GUI-Libra reasoning/CoT SFT shards
(aitz-canon schema), maximizing **AndroidWorld** relevance.

Drop criterion: an **episode** is landscape (dropped) if **any** step has
`screen_height / screen_width < 1.0` (using the explicit `screen_width` /
`screen_height` columns). Episode-level, episodes kept contiguous and intact.
Schema is **byte-identical** to the source (same columns/dtypes; `target_json`
unchanged; coords `guiowl_norm1000_xy`, 0-1000).

Sources present as parquet: `aitw`, `amex` (both 0% landscape → copied
verbatim), `gui_odyssey` (filtered + re-packed episode-contiguous).
`android_control` / `coat` exist as report-only (no parquet shards in the
reasoning set). Files are laid out per-source under subdirectories.

## Filtering stats

```json
{
  "filter": "phone-portrait only (drop episodes with any step aspect h/w < 1.0)",
  "before": {
    "episodes": 24993,
    "steps": 48472
  },
  "after": {
    "episodes": 23948,
    "steps": 41876
  },
  "dropped": {
    "episodes": 1045,
    "steps": 6596
  },
  "per_source": [
    {
      "source": "aitw",
      "shards_in": 2,
      "shards_out": 2,
      "note": "no landscape; copied verbatim",
      "before_eps": 1957,
      "after_eps": 1957,
      "before_steps": 7626,
      "after_steps": 7626,
      "drop_eps": 0,
      "drop_steps": 0,
      "zerodim": 0
    },
    {
      "source": "amex",
      "shards_in": 5,
      "shards_out": 5,
      "note": "no landscape; copied verbatim",
      "before_eps": 19694,
      "after_eps": 19694,
      "before_steps": 19694,
      "after_steps": 19694,
      "drop_eps": 0,
      "drop_steps": 0,
      "zerodim": 0
    },
    {
      "source": "android_control",
      "shards_in": 0,
      "note": "no parquet (report-only)",
      "before_eps": 0,
      "after_eps": 0,
      "before_steps": 0,
      "after_steps": 0,
      "drop_eps": 0,
      "drop_steps": 0,
      "zerodim": 0
    },
    {
      "source": "coat",
      "shards_in": 0,
      "note": "no parquet (report-only)",
      "before_eps": 0,
      "after_eps": 0,
      "before_steps": 0,
      "after_steps": 0,
      "drop_eps": 0,
      "drop_steps": 0,
      "zerodim": 0
    },
    {
      "source": "gui_odyssey",
      "shards_in": 6,
      "shards_out": 4,
      "before_eps": 3342,
      "after_eps": 2297,
      "before_steps": 21152,
      "after_steps": 14556,
      "drop_eps": 1045,
      "drop_steps": 6596,
      "zerodim": 0
    }
  ]
}
```