https://letian-wang.github.io/blog.html Research notes and essays by Letian Wang en-us Tue, 14 Jul 2026 20:04:12 GMT https://letian-wang.github.io/blog/thoughts-after-building-a-general-purpose-vision-model.html https://letian-wang.github.io/blog/thoughts-after-building-a-general-purpose-vision-model.html Tue, 14 Jul 2026 00:00:00 GMT Reflections on representation learning at scale, unified architectures, and synthetic data, after a project building a general-purpose vision model at DeepMind.