---
license: apache-2.0
language:
- en
tags:
- video-generation
- video-reasoning
- benchmark
pretty_name: VBVR-Test-Bench
size_categories:
- n<1K
---

# VBVR-Test-Bench

A reorganization of the [Video-Reason/VBVR-Bench-Data](https://huggingface.co/datasets/Video-Reason/VBVR-Bench-Data) test set, organized first by **split** (In-Domain / Out-of-Domain), then by **class** (Instruction_Following / Pure_Reasoning), and inside Pure_Reasoning, further split into **unchanged** vs **rewritten**.

| Class / bucket                          | Tasks | Samples |
|---|---:|---:|
| Instruction_Following                   | 56    | 280     |
| Pure_Reasoning / unchanged              | 27    | 135     |
| Pure_Reasoning / rewritten              | 17    | 85      |
| **Total**                               | **100** | **500** |

**rewritten** tasks are reasoning tasks whose upstream VBVR prompt contained answer leaks, algorithm-name hints, redundant procedural decomposition, or pure rendering choreography. We rewrote these prompts to test the model's reasoning rather than its ability to mimic the spelled-out solution. Both the rewritten `prompt.txt` and the original VBVR `prompt_original.txt` are included so you can audit each diff.

## Layout

```
VBVR-Test-Bench/
├── README.md
├── In-Domain_50/
│   ├── Instruction_Following/
│   │   └── <task>/<sample>/
│   │       ├── prompt.txt
│   │       ├── first_frame.png
│   │       ├── final_frame.png
│   │       ├── ground_truth.mp4
│   │       └── metadata.json
│   └── Pure_Reasoning/
│       ├── unchanged/
│       │   └── <task>/<sample>/...    # prompt.txt = upstream VBVR
│       └── rewritten/
│           └── <task>/<sample>/
│               ├── prompt.txt           # rewritten (leak-stripped)
│               ├── prompt_original.txt  # upstream VBVR (reference)
│               ├── first_frame.png
│               ├── final_frame.png
│               ├── ground_truth.mp4
│               └── metadata.json
└── Out-of-Domain_50/
    ├── Instruction_Following/...
    └── Pure_Reasoning/
        ├── unchanged/...
        └── rewritten/...
```

## Source

- **Prompts** (`prompt_original.txt` and `Instruction_Following` / `Pure_Reasoning/unchanged` `prompt.txt`): byte-identical to upstream [Video-Reason/VBVR-Bench-Data](https://huggingface.co/datasets/Video-Reason/VBVR-Bench-Data).
- **Videos / frames / metadata**: byte-identical to upstream VBVR-Bench-Data.
- **`Pure_Reasoning/rewritten/<task>/<sample>/prompt.txt`**: derived from `prompt_original.txt` by applying our rewrite rules.

## What got rewritten

The 17 rewritten tasks (see `prompt.txt` vs `prompt_original.txt` for the exact diff per sample):

### Choreography removal (5 tasks)
- **G-13, G-16, G-41, G-45, G-47**: stripped trailing `showing the complete movement process step by step` (pure rendering instruction).

### Answer / leak removal (8 tasks)
- **G-131, G-134, G-135**: the pattern string spelled the answer literally (e.g., `'small-big-small-big'` tells the next is `big`). Replaced with neutral wording.
- **G-273**: removed parenthetical `(the object that ends up floating higher)` which directly identifies the answer.
- **O-23**: removed outcome narrative (`Both branches will complete successfully...`) and v3's gap-existence hint.
- **O-24**: removed `to find where the chain will break` / `until the gap prevents further progress`.
- **O-31**: removed algorithm name (`using a greedy largest-first strategy`) and optimal-order hint (`the largest red ball` → `any red ball`). The eating rule (must be smaller-or-equal) is preserved.
- **O-45**: removed procedural decomposition.

### Misc minor cuts (4 tasks)
- **G-21**: reframed mask motion as a depth-reasoning task.
- **O-2**: removed `Using subtractive color mixing rules,`.
- **O-16**: normalized wording.
- **O-22**: removed `Plan your moves carefully before starting.`.

## Splits

- **In-Domain_50**: 50 tasks. Training distribution.
- **Out-of-Domain_50**: 50 tasks. Held out from training.

## Excluded from this release

- **B-variants** (G-21B, G-36B, O-18B, O-19B, G-160B, G-167B, G-218B, G-219B, G-221B): our synthesized depth-reasoning / extremum-flip variants. Not part of upstream VBVR.

## Citing VBVR

```
@misc{vbvr,
  title  = {VBVR: A Very Big Video Reasoning Suite},
  url    = {https://huggingface.co/datasets/Video-Reason/VBVR-Bench-Data},
  year   = {2026}
}
```