Anthropic ML System Design Interview Questions
Practice the exact questions companies are asking right now.

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"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

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"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Estimate VRAM and compare model parallelism
You are reasoning about GPU memory and parallelism for a transformer-like workload dominated by matrix multiplications. Part 1: Can one matmul’s tenso...
Design a low-latency ML inference API
System Design: Low‑Latency ML Inference API (Real‑Time) Context You are designing an in‑region, synchronous inference API used by product surfaces (e....
Design an LLM-based binary classifier
Design a Binary Text Classifier Using Only a Log-Probability Scoring Helper Context You are building a binary text classifier without fine-tuning. You...
Design a batch inference API
System Design: Async Inference Service API (POST Job, Poll for Results) Context You are designing an asynchronous inference service where clients subm...
Design a GPU inference API
System Design: GPU-Backed Multi-Model Inference API Context Design a production-grade inference platform for serving multiple ML models (e.g., LLMs, v...
Design an inference routing and scheduling layer
System Design: Routing Layer for Heterogeneous Inference Backends (GPU/CPU) Context You are asked to design a routing layer that sits between a user-f...
Review an inference API design for scale
System Design Review: Machine-Learning Inference API (Distributed Systems Focus) Background You are reviewing a teammate’s design document for a produ...
Design a prompt processing backend
System Design: Background Processing Backend for LLM Prompts Context Design a multi-tenant backend that processes large language model (LLM) prompts a...
Design a high-concurrency LLM inference service
You are designing an LLM inference platform that serves interactive user requests (chat/completions) on GPUs. Goals - Support high concurrency with pr...