# WorldReasonBench (/docs/evaluation/benchmark-hub/worldreasonbench)



## About [#about]

World-state reasoning QA and reward-model evaluation for generated videos.

**WorldFoundry evaluation path:** Imports existing official or upstream results into a WorldFoundry scorecard; this integration cannot yet replay the full official protocol from raw generated videos.

## Integration status [#integration-status]

| Item                | Current state                           |
| ------------------- | --------------------------------------- |
| Catalog integration | `integrated`                            |
| Runner verification | `normalizer_only`                       |
| Leaderboard         | not yet eligible for leaderboard claims |

## Metrics [#metrics]

### Task YAML [#task-yaml]

`worldfoundry/data/benchmarks/tasks/external/worldreasonbench.yaml`

### Primary [#primary]

* `score_pr`

| Metric                           | Focus                                                                                           |
| -------------------------------- | ----------------------------------------------------------------------------------------------- |
| `score_pr`                       | Geometric combination of QA accuracy and dynamic reasoning score.                               |
| `qa_accuracy`                    | Correctness of predicted actions, states, or outcomes against the benchmark success criterion.  |
| `state_score`                    | Value reported for State Score under the official benchmark protocol.                           |
| `process_score`                  | Value reported for Process Score under the official benchmark protocol.                         |
| `fidelity_score`                 | Value reported for Fidelity Score under the official benchmark protocol.                        |
| `mechanism_score`                | Value reported for Mechanism Score under the official benchmark protocol.                       |
| `static_outcome_score`           | Value reported for Static Outcome Score under the official benchmark protocol.                  |
| `dynamic_reasoning_score`        | Value reported for Dynamic Reasoning Score under the official benchmark protocol.               |
| `reasoning_gap`                  | Static outcome score minus dynamic reasoning score; lower values indicate less outcome hacking. |
| `pointwise_score`                | Value reported for Pointwise S(v) under the official benchmark protocol.                        |
| `reasoning_correctness`          | Value reported for Reasoning Correctness under the official benchmark protocol.                 |
| `content_fidelity`               | Value reported for Content Fidelity under the official benchmark protocol.                      |
| `visual_aesthetics`              | Value reported for Visual Aesthetics under the official benchmark protocol.                     |
| `pointwise_spearman`             | Value reported for Pointwise Spearman Correlation under the official benchmark protocol.        |
| `induced_pairwise_accuracy`      | Correctness of predicted actions, states, or outcomes against the benchmark success criterion.  |
| `pairwise_accuracy_with_ties`    | Correctness of predicted actions, states, or outcomes against the benchmark success criterion.  |
| `pairwise_accuracy_without_ties` | Correctness of predicted actions, states, or outcomes against the benchmark success criterion.  |

## Environment setup [#environment-setup]

### Runtime environment [#runtime-environment]

* **Conda env:** `worldfoundry-unified-cu128`.
* **Separate setup:** defaults to the unified WorldFoundry env (`needs_new_env: false`); a benchmark-only conda env is usually not required.
* Result normalization uses the unified WorldFoundry environment and has no GPU dependency.
* Real evaluation reuses the unified environment when it provides openai, opencv-python, numpy, Pillow, and tqdm.
* The judge model server is an external OpenAI-compatible service and may use its own serving environment.

### Evaluation data [#evaluation-data]

* Candidate model outputs: set `WORLDFOUNDRY_GENERATED_ARTIFACT_DIR` to the generated-video or rollout artifact root.
* `worldfoundry/evaluation/tasks/execution/runners/worldreasonbench`
* `worldfoundry/data/benchmarks/tasks/external/worldreasonbench.yaml`

### Checkpoints & assets [#checkpoints--assets]

* This benchmark is primarily rollout- or official-result-driven; see catalog `requires` and the task YAML for policy/simulator checkpoints.

### Key environment variables [#key-environment-variables]

* `WORLDFOUNDRY_WORLDREASONBENCH_ROOT`
* `WORLDFOUNDRY_WORLDREASONBENCH_RESULTS_PATH`
* `WORLDFOUNDRY_WORLDREASONBENCH_PROTOCOL`
* `WORLDFOUNDRY_WORLDREASONBENCH_QA_JSON`
* `WORLDFOUNDRY_WORLDREASONBENCH_PAIRS_JSON`
* `WORLDFOUNDRY_GENERATED_ARTIFACT_DIR`
* `OPENAI_BASE_URL`
* `OPENAI_API_KEY`
* `OPENAI_MODEL`
* `HF_ENDPOINT`

## Run Evaluation [#run-evaluation]

After preparing the assets and candidate artifacts listed on this page, use the public run entry points below.

### Set Candidate Artifacts [#set-candidate-artifacts]

```bash
export WORLDFOUNDRY_GENERATED_ARTIFACT_DIR=/path/to/generated/artifacts
```

### Import Official Results [#import-official-results]

```bash
worldfoundry-eval zoo benchmark-run \
  --benchmark-id worldreasonbench \
  --mode normalizer \
  --official-results-path /path/to/official/results-or-report \
  --generated-artifact-dir "${WORLDFOUNDRY_GENERATED_ARTIFACT_DIR}" \
  --output-dir tmp/worldreasonbench/normalizer \
  --json
```

### Validate or Normalize Existing Results [#validate-or-normalize-existing-results]

```bash
worldfoundry-eval zoo benchmark-run --benchmark-id worldreasonbench --mode official-validation --official-results-path <official_results_dir> --output-dir <out> --json
```

## Requirements [#requirements]

### Inputs [#inputs]

* WORLDFOUNDRY\_WORLDREASONBENCH\_ROOT for official execution
* OPENAI\_BASE\_URL and a compatible multimodal judge

### Environment [#environment]

* `WORLDFOUNDRY_GENERATED_ARTIFACT_DIR`

### Outputs [#outputs]

* `scorecard.json`
* `raw_metric_table.jsonl`
* `protocol_results.json`
* `benchmark_contract.json`

## Official references [#official-references]

* [GitHub](https://github.com/UniX-AI-Lab/WorldReasonBench)
* [Paper](https://arxiv.org/abs/2605.10434)
* [Project page](https://unix-ai-lab.github.io/WorldReasonBench/)
* [Hugging Face dataset](https://huggingface.co/datasets/WorldReasonBench)

[← Benchmark Hub](/docs/evaluation/benchmark-hub)
