Sepehr Dehdashtian
PhD Student in Computer Science

428 S Shaw Ln # 3208
East Lansing, MI
Hi there! I’m Sepehr, currently pursuing a PhD in Computer Science at Michigan State University, with a Master’s degree in Electrical Engineering from Sharif University of Technology.
My work centers on reliability and representation learning in multimodal and generative models, as well as on understanding and mitigating bias and fairness issues in generative AI systems. I have investigated stereotype detection and steerability in diffusion and flow-matching text-to-image models, and I am currently exploring post-training policy enforcement for foundation models, applying both RL-based (e.g., RLHF) and non-RL (e.g., DPO) methods. Through these efforts, I aim to identify and address failure modes where models deviate from safety and alignment policies, ultimately contributing to more equitable and trustworthy AI systems.
If you’re interested in discussing my research or anything else, feel free to reach out via email or connect with me on social media. You can find more about my work on this website and in my CV.
news
Apr 21, 2025 | I’ve been awarded the Interdisciplinary Inquiry and Teaching Fellowship for 2025! 🎉 |
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Feb 11, 2025 | Our paper, OASIS, has been accepted as spotlight ✨ at ICLR 2025. |
Jan 22, 2025 | Our paper, OASIS Uncovers: High-Quality T2I Models, Same Old Stereotypes, has been accepted at ICLR 2025. |
Dec 16, 2024 | Happy to Share: I have joined Reality Defender as a Core AI Intern for the Spring 2025 semester. |
Jul 11, 2024 | Thrilled to announce that I've been awarded the STEAMpower Fellowship for 2024! 🎉 |