Access CIRCLE
CIRCLE is a research model for chest CT image understanding. Please review and acknowledge the license, responsible-use terms, and model limitations before accessing the model.
CIRCLE Model Access Terms and Responsible Use Notice
CIRCLE is released under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) license.
Access to the official CIRCLE model repository is gated to promote responsible use and to inform users of the model's intended scope, limitations, and responsibilities.
- License and Non-Commercial Use
You agree to comply with the CC BY-NC-SA 4.0 license, including applicable attribution, non-commercial use, and ShareAlike requirements. Commercial use requires separate permission from the model providers.
- Intended Use
CIRCLE is developed and released primarily for scientific research, academic study, education, benchmarking, and other non-commercial research purposes.
- Medical and Clinical Disclaimer
CIRCLE is a research model and has not been validated, certified, cleared, or approved as a medical device.
The model and its outputs are not intended to replace the judgment of qualified healthcare professionals and should not be relied upon as the sole basis for diagnosis, treatment, triage, prognosis, patient management, or other clinical decision-making.
- Model Limitations
CIRCLE may generate inaccurate, incomplete, inconsistent, biased, hallucinated, or otherwise erroneous outputs. Performance may vary across patient populations, institutions, scanners, imaging protocols, and downstream applications.
Users are responsible for independently validating the model for their intended use.
- Privacy, Ethics, and Medical Data
Users are responsible for complying with applicable laws, regulations, privacy requirements, research ethics, institutional policies, and approvals when using CIRCLE, particularly when processing medical or patient-related data.
Users should not process personally identifiable or protected health information without appropriate authorization and safeguards.
- Re-identification and Privacy Protection
Users must not intentionally use CIRCLE to identify or re-identify individuals or to extract, reconstruct, or infer personally identifiable or protected health information from the model or its outputs.
- Attribution
Users must appropriately acknowledge CIRCLE and cite the associated CIRCLE publication in scholarly and public research outputs.
- Disclaimer and Responsibility
CIRCLE is provided "as is" and "as available", without warranties of accuracy, completeness, reliability, fitness for a particular purpose, or clinical performance, to the extent permitted by applicable law.
Users remain responsible for evaluating whether CIRCLE is appropriate for their intended use and for the consequences of using the model or its outputs.
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