DeepSeek adds vision to v4-flash-exp, accepts images up to 64 MiB
DeepSeek-v4-flash-vision-exp

DeepSeek's new deepseek-v4-flash-vision-exp model accepts images alongside text, supporting JPEG, PNG, GIF, and WebP. Images can be sent as base64 data URLs, external URLs, or via the Files API, with a max of 600 images per request. The model caps image tokens at 384 per image, resizing larger images to roughly 800x800.
Only vision models (deepseek-v4-flash-vision-exp) accept images; other models return a 400 error.