System Design AI

Guided practice

Start with a template. Work through each step. Ask Coach when you need a second opinion.

Classic designs 4

Ordered by design number

Company tags are community-reported. Counts on cards show how many people reported that design.

Computer visionClear filters

129. Design an Image-Text Training Data Pipeline
Billions of image-text pairs from Common Crawl: polite fetching, CLIP scoring, dedup, recaptioning, WebDataset shards and takedowns.
ClassicMedium
AI infrastructure AWS Computer vision
+2
Data pipeline Multimodal
Worked design
Practice
130. Design a Visual Search System
Search by photo over a billion images: contrastive embeddings from engagement pairs, object crops, IVF-PQ with re-scoring, versioned indexes.
ClassicMedium
Machine learning AWS Computer vision
+3
Embeddings Retrieval Visual search
Worked design
Practice
135. Design Image Captioning
Captions read aloud as alt text: encoder, bridge and decoder, CLIP-filtered data, beam search, hallucination-aware evaluation, lanes on one GPU pool.
ClassicMedium
Machine learning Generative AI Captioning
+2
Computer vision Multimodal
Worked design
Practice
147. Design Street View Blurring
Blur every face and licence plate in billions of street panoramas: tiles for tiny faces, recall-first detection, a batch pipeline that fails closed.
ClassicMedium
Machine learning Privacy AWS
+2
Computer vision Object detection
Worked design
Practice

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