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| license: cc-by-sa-4.0 |
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| # Apple-Pi (Full) |
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| Full release of the **Apple-Pi physics benchmark**: **400 cases (243 simulation + 157 realworld)** for evaluating physics reasoning in image and video generation models. |
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| ## Folder structure |
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| ``` |
| apple-pi-full/ |
| ├── README.md |
| ├── croissant.json |
| ├── sim_subset/ # 243 simulation cases (10 physics tasks) |
| └── realworld_subset/ # 157 realworld cases (7 physics categories) |
| ``` |
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| ## Per-case contents |
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| **Simulation** (`sim_subset/<task>/<case_id>/`) — generated with **NVIDIA Isaac Sim** (rigid-body PhysX simulator): |
| - `annotation.txt`, `physics_duration.txt`, `formula_info.json`, `prompt.txt` |
| - `initial_state/` (rgb_0000 + white-bg variants + instance segmentation + camera params) |
| - `instantaneous_velocity/` (target-time velocity reference) |
| - `rgb/0000.png ~ 00NN.png` (rendered video frames @ 24 fps) |
| - `instance_segmentation/`, `mask/`, `velocity/`, `depth/`, `density/`, `camera_parameters/` |
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| **Realworld** (`realworld_subset/<category>/[<subcategory>/]<case_id>/`) — recorded under controlled laboratory conditions: |
| - `annotation.txt`, `formula_info.json`, `physics_duration.txt`, `annotation_config.json` |
| - `initial_state/` (first-frame extraction + variants) |
| - `instance_segmentation/`, `mask/`, `instantaneous_velocity/` |
| - `rgb/video.mp4` |
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| ## Tasks |
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| **Simulation (10 physics tasks)**: at_rest, circular, freefall, inclined_plane, inelastic_collision, perfectly_elastic_collision, perfectly_inelastic_collision, projectile, uniform_linear, composition. |
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| **Realworld (7 physics categories)**: NewtonsFirstLaw/AtRest, Gravity/{Freefall, Projectile}, ConservationofMomentum/{InelasticCollision, PerfectlyElasticCollision, PerfectlyInelasticCollision}, Composition. |
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| ## Intended use |
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| Zero-shot evaluation of physics reasoning in image- and video-generation models across perception, comprehension, and generation tracks. Not intended for training. |
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| ## Companion repository |
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| A 100-case representative sample (50 simulation + 50 realworld) is also released for quick inspection at `AnonymousSubmitt/apple-pi`. |
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| ## License |
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| CC BY-SA 4.0 |
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| ## Citation |
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| ``` |
| [Anonymous] Apple-Pi: Physics Infographics Benchmark. 2026. |
| ``` |
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