I got tired of hand-writing alt text for hundreds of images. Built a build-time pipeline to automate it.
Gemini 3 Flash is great for this. Low latency, low cost and vision is accurate enough.
Full write-up + code: https://sarthakmishra.com/blog/automating-image-alt-text
Anyone else using Flash for bulk image processing? How is it compared to Pro for simple recognition tasks?
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