Sangmin Woo

Applied Scientist, AWS

Sangmin Woo is an Applied Scientist at AWS AI Labs working on machine learning for agentic AI, with a focus on evaluation frameworks and improving agent behavior and performance. His interests span agentic AI, generative models, and multimodal AI.

1 post

May 20, 2026

Multimodal evaluators: MLLM-as-a-judge for image-to-text tasks in Strands Evals

Announcing four new MLLM-as-a-Judge evaluators for image-to-text tasks in Strands Evals: Overall Quality, Correctness, Faithfulness, and Instruction Following — automated, image-grounded scoring with reasoning.

Sangmin WooHaibo DingSungyeon KimVinayak Arannil