[ICLR 2026] RFEval: Benchmarking Reasoning Faithfulness under Counterfactual Reasoning Intervention in Large Reasoning Models

This is the official repository for RFEval, the evaluation framework of Reasoning Faithfulness for Large Reasoning Models.

🚀 Requirements & Installation

We recommend using a conda environment with Python 3.12+ and CUDA 12.8 capable GPUs.

conda create -n rfeval python=3.12 -y
conda activate rfeval
pip install -r requirements.txt

To run evaluation with proprietary APIs, create a .env file and set API keys as needed.

# OpenAI API Key
OPENAI_API_KEY=YOUR_OPENAI_API_KEY
# Optional (for proprietary APIs)
GOOGLE_API_KEY=YOUR_GOOGLE_API_KEY
ANTHROPIC_API_KEY=YOUR_ANTHROPIC_API_KEY

🔧 Usage

We use two runners. Each runner expects a model name as a CLI argument.

• scripts/inference.sh — run inference for a model (single/multi/all tasks)
• scripts/evaluation.sh — run evaluation for a model (single/multi/all tasks)

Common environment overrides:

• TASKS: space-separated task list (use a single task to run one)
• NUM_GPU: vLLM tensor parallel size for open-source inference
• EVALUATOR: evaluator model name for evaluation (default: o3)
• MODE: sync (default), post, or get for batch mode (OpenAI only)
• SLEEP: optional delay between tasks

Examples:

# Single task inference
TASKS="logical_reasoning" bash scripts/inference.sh Qwen/Qwen3-32B --num_gpu 2

# Multiple tasks inference
TASKS="code_generation logical_reasoning" bash scripts/inference.sh Qwen/Qwen3-32B --num_gpu 2

# All tasks inference (default TASKS)
bash scripts/inference.sh Qwen/Qwen3-32B --num_gpu 2

# Evaluation (sync)
bash scripts/evaluation.sh Qwen/Qwen3-32B

# Evaluation with OpenAI batch
MODE=post EVALUATOR=o3 bash scripts/evaluation.sh Qwen/Qwen3-32B
MODE=get  EVALUATOR=o3 bash scripts/evaluation.sh Qwen/Qwen3-32B

Notes:

• Inference always uses the HF dataset at snu-aidas/RFEval.
• The task name is used as the dataset config (subset), so TASKS must match one of: code_generation, context_understanding, legal_decision, logical_reasoning, mathematical_reasoning, paper_review, table_reasoning.

Reasoning Faithfulness Computation

Run compute_rf.py to compute reasoning faithfulness. It reads the evaluation outputs under evaluation_results/<evaluator_name>/{baseline,intervened}/<task>/<model>.json and aggregates RF coverage + score into a CSV.

python compute_rf.py --model_name your_lrm --task your_testing_task --evaluator_name your_evaluator

Output:

• CSV summary is saved to ./evaluation_results/<evaluator_name>/rf_summary*.csv
• You can run this from any working directory; paths are resolved relative to the repository root where compute_rf.py lives.

📚 Citation

If you find this work useful, please consider citing:

@inproceedings{han2026rfeval,
  title={RFEval: Benchmarking Reasoning Faithfulness under Counterfactual Reasoning Intervention in Large Reasoning Models},
  author={Yunseok Han and Yejoon Lee and Jaeyoung Do},
  booktitle={The Fourteenth International Conference on Learning Representations},
  year={2026},
  url={https://openreview.net/forum?id=2Gc8aj0afg}
}