Anthropic Interview Questions
We track 22 interview questions reported from Anthropic: 7 in System Design for ML, 7 in Coding & Leetcode-style Questions. They average 3.6/5 difficulty — hard for a working engineer — and every one was reported by someone who sat the loop, not written by us. The topics that come up most: system-design, anthropic, gpu, ml-infra.
Practice these on the problems board →Question mix
- System Design for ML7
- Coding & Leetcode-style Questions7
- Research & Paper Understanding3
- LLMs & Prompt Engineering2
- ML Fundamentals & Algorithms2
- MLOps & Deployment1
Difficulty
- 3/5 — medium11
- 4/5 — hard9
- 5/5 — very hard2
Asked for MLE (16), SWE (15), RS (7), RE (7)
Topics Anthropic asks about
Reported Anthropic questions
LLM re-implemented as classifier
3/5This Anthropic interview question explores how to leverage next-token probabilities from a language model to perform binary classification tasks. You will examine methods for extracting confidence scores and mapping them into reliable categorical decisions using statistical heuristics. The exercise tests your practical understanding of generative model internals and prompt-based classification strategies. The full problem and model solution require a subscription.
LLMs & Prompt EngineeringllmclassifierDesign Prompt Playground
3/5Explore a system design prompt inspired by AI interaction workflows at Anthropic, focusing on the creation of an iterative prompt engineering workspace. The objective is to architect an environment where users can systematically experiment with stateless model requests, evaluate output variations, and refine instructions through trial and error. This question assesses user interface requirements, backend execution flow, and API management. Access to the full design scenario, scaling strategies, and expert solutions requires a paid subscription.
System Design for MLBatch Processing of High Dimensional Data
3/5This programming task, reported during Anthropic hiring assessments, focuses on building a concurrent utility to apply multiple transformations to high-dimensional image collections efficiently. It evaluates parallel processing capabilities, throughput optimization for CPU-intensive tasks, and clean software architecture design. Reviewing the complete prompt specifications and model implementation demands a paid subscription.
ML Fundamentals & AlgorithmsBehavior Interview (Culture)
3/5This reported Anthropic interview guide centers on behavioral and cultural evaluations tailored for prospective team members. It explores critical professional themes such as mission alignment, ethical AI development, constructive feedback handling, and cross-functional collaboration. The material helps candidates structure their past experiences to demonstrate maturity and dedication to safe technology practices. To explore all prompts and strategic frameworks for acing this round, a subscription is required.
Research & Paper UnderstandingCrash-Resilient LRU Memoization Cache
3/5This reported Anthropic interview question requires you to build a caching mechanism that remembers function outputs while handling argument normalization and recency-based evictions. The exercise examines your understanding of state management, hash keys, and resilient data structures that can withstand unexpected interruptions. You must ensure that parameter ordering does not affect cache hits while keeping memory usage under control. The full problem specifications and the complete model solution require a subscription.
Coding & Leetcode-style QuestionsDeduplicate Files
3/5This reported Anthropic interview question asks you to scan a directory tree and group files that contain identical data. It evaluates your file system navigation skills, hashing strategies, and ability to optimize algorithms progressively for performance over large volumes of data. You must carefully design your approach to avoid unnecessary file reads while accurately identifying duplicates. To access the full problem details, optimization guidelines, and the complete model solution, a subscription is required.
Coding & Leetcode-style QuestionsBank Systems (OA)
4/5This multi-tiered systems design and coding challenge, reported as an online assessment for Anthropic software engineering roles, requires you to build a robust in-memory banking engine. Over several escalating phases, you will handle user account creation, secure fund transfers, transaction histories, and advanced auditing rules efficiently. The assessment measures your ability to design clean APIs and manage stateful business logic under tight constraints. The comprehensive problem statement and optimal model solution are available exclusively to subscribers.
Coding & Leetcode-style QuestionsCrawling the web
3/5In this systems-focused coding challenge from Anthropic interviews, you are tasked with building a web crawler capable of discovering reachable hyperlinks within a designated domain starting from a seed address. You will progressively evolve your design from a straightforward single-threaded traversal to an efficient, concurrent architecture that handles network boundaries and deduplication smoothly. The evaluation checks your grasp of graph traversal, concurrency control, and asynchronous programming patterns. Access to the detailed specifications and optimal solution requires a subscription.
Coding & Leetcode-style QuestionsIn-memory database
3/5This data structures and systems design task, featured in Anthropic online assessments, requires you to construct a feature-rich in-memory database across multiple levels of increasing difficulty. You will implement nested key-value storage, condition-based filtering, expiration timers for records, and transactional snapshot capabilities. The test assesses your capability to design efficient indexing structures and maintain clean state management in memory. Reviewing the complete prompt requirements and the expert model solution requires an active subscription.
Coding & Leetcode-style QuestionsDesign a GPU Scheduling Platform
4/5This reported OpenAI interview challenge asks you to architect a cluster management platform capable of distributing limited hardware resources across competing machine learning workloads. You will need to address priority queues, topology-aware placement for multi-node tasks, failure recovery, and strategies to balance hardware utilization against queue wait times. The complete breakdown and expert architectural solution require a subscription.
System Design for MLsystem-designschedulinggpuStack sample conversion to event tracing
3/5In this reported Anthropic coding assessment, candidates must transform periodic profiler call stack logs into chronological trace events showing function durations. The task evaluates your data parsing abilities and algorithmic efficiency when dealing with nested execution snapshots. Access to the comprehensive problem description, test suite, and optimal code solution requires a paid subscription.
Coding & Leetcode-style QuestionsCloud Storage Systems
3/5This popular Anthropic coding assessment requires candidates to build an in-memory hierarchical cloud file storage system that handles increasingly sophisticated retrieval and management operations across multiple progressive levels. The exercise tests your data structure design choices, algorithmic efficiency, and ability to handle edge cases cleanly under time constraints. The complete problem statement, test cases, and model solution require a subscription.
Coding & Leetcode-style QuestionsDesign a GPU Inference Serving System
4/5In this advanced system design challenge reported at Anthropic, you are tasked with architecting a high-throughput model serving platform on a constrained GPU cluster to minimize latency while maximizing token generation rates. Key topics include continuous batching, memory allocation strategies, autoscaling policies, and handling traffic surges. The full architectural walkthrough and expert solution require a subscription.
System Design for MLsystem-designinferencegpuDesign ChatGPT: A Conversational LLM Serving Platform
4/5Explore how to architect a real-time conversational intelligence service capable of streaming text generation to massive concurrent user bases. This OpenAI reported system design challenge evaluates your ability to manage expensive hardware accelerators, handle memory efficiently through KV caching techniques, and maintain multi-turn dialogue state under strict latency bounds. You will learn strategies for continuous batching and request prioritization. The full problem and model solution require a subscription.
System Design for MLsystem-designllminferenceAgents / Coding with LLMs
4/5Master the art of building autonomous language model agents and tool-use loops in this hands-on research interview prompt reported from Anthropic. You will practice orchestrating API calls, designing robust prompts, and structuring multi-step logic to solve complex programmatic tasks using modern generative models. This open-book challenge assesses your practical integration skills and conceptual understanding of agentic workflows. Unlock the complete technical guide, starter workspace details, and model solution with a subscription.
LLMs & Prompt EngineeringDesign Model Weight Distribution
3/5Design a robust distribution system for pushing massive machine learning artifact files across globally dispersed inference nodes in this system design question reported from Anthropic. The challenge requires you to handle multi-gigabyte model shards, ensure cryptographic integrity, manage seamless rollouts and rollbacks, and minimize serving downtime during updates. You will evaluate storage tiers, metadata catalogs, and bandwidth optimization strategies. Gain full access to the complete system architecture, trade-off analysis, and model solution with a subscription.
System Design for MLDesign a Distributed AI Model Downloader
4/5Tackle the challenge of efficiently transferring colossal machine learning parameter files from centralized storage to thousands of edge GPU nodes in this system design interview reported from Anthropic. You will design a high-throughput distribution network that prevents bandwidth saturation using peer-to-peer or tree-based fan-out mechanisms, while managing local node caching, versioning, and partial download resumption. Unlock the complete system architecture, bottleneck analysis, and expert solution with a subscription.
System Design for MLsystem-designml-infradistributionML Take-Home: 4-Hour Experiment plus Live Review
4/5Prepare for a rigorous research-oriented take-home assessment reported from Anthropic that tests your practical machine learning expertise under strict time limits. Candidates must independently investigate a structured modeling challenge, build functional code solutions, and interpret numerical findings effectively. The follow-up discussion evaluates your experimental methodology, communication clarity, and ability to defend technical decisions. The full problem and model solution require a subscription.
Research & Paper Understandingtake-homeml-experimentpandasHiring Manager Interview Questions
4/5Master the leadership evaluation round with this curated guide based on technical management interviews at Anthropic. This material helps you articulate complex project histories, structural design trade-offs, and cross-functional influence with precision. You will discover how to structure compelling narratives around high-impact architectural choices and team dynamics. The full problem and model solution require a subscription.
ML Fundamentals & Algorithmsbehavioralhiring manager roundDesign an AI Prompt Playground
4/5Reported as an AI system design interview at Anthropic, this exercise challenges you to architect a multi-tenant web application for authoring prompts and evaluating multiple large language models concurrently. You must address complex engineering hurdles including streaming response pipelines, tenant rate limiting, cost monitoring, and version control storage. The evaluation emphasizes balancing system responsiveness with strong resource isolation. Unlock the complete system architecture guide and expert design breakdown with a subscription.
System Design for MLsystem-designllmproductMatmul Arithmetic Intensity and Roofline Performance Modeling
5/5Examine hardware-level performance evaluation strategies typical of onsite technical rounds at Anthropic. This engineering exercise evaluates your ability to analyze computational intensity, memory throughput bottlenecks, and hardware operational limits using accelerator specifications. Professionals must estimate execution latencies across deep network architectures and determine resource saturation points under strict operational constraints. Unlock the comprehensive walkthrough, mathematical derivations, and expert reference implementations by upgrading your account today.
MLOps & Deploymentperformance-modelingrooflinematmulTake-Home: Reproduce and Explain Sample-Wise Double Descent
5/5This advanced research-oriented take-home assignment from Anthropic requires candidates to investigate and recreate anomalous error rate behaviors in machine learning models during training scaling. The project tests your deep theoretical understanding of high-dimensional statistics, experimental design, and mathematical reasoning regarding overfitting phenomena. It serves as a rigorous evaluation of interpretability research potential and empirical investigation skills. To access the detailed project guidelines, analytical framework, and expert walkthrough, a paid subscription is necessary.
Research & Paper Understandingdouble-descentinterpretabilityrandom-matrix-theory
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Anthropic interview FAQ
- How many Anthropic interview questions are available?
- 22 reported Anthropic questions, the largest group being System Design for ML (7).
- How hard is the Anthropic interview?
- Across the questions we track, Anthropic averages 3.6 out of 5: 11 at 3/5, 9 at 4/5, 2 at 5/5.
- What topics does Anthropic ask about?
- Most often system-design, anthropic, gpu, ml-infra, llm.