What shows up most at Anthropic
These are the question clusters that appear most often in the raw records and should shape how candidates allocate prep time.
System design and product architecture
13 mentionsThese rounds test candidates' ability to design scalable systems and evaluate trade-offs in architecture decisions.
Coding and LeetCode-style screens
13 mentionsFocus on coding challenges with an emphasis on algorithm efficiency and high-frequency problem-solving.
Tree and recursion problems
10 mentionsTest problem-solving with recursive approaches and binary tree manipulation, focusing on structured thinking.
Where Anthropic puts the most pressure
The stage distribution tells candidates where the loop concentrates effort and what kind of reasoning tends to matter most in each round.
Technical Interview
11 recordsTechnical interviews at Anthropic are intense, focusing on system design, complex coding challenges, and problem-solving abilities.
Phone Screen
10 recordsPhone screens focus on assessing basic coding and design skills through live problem-solving.
Onsite
7 recordsOnsite interviews involve deep dives into system design and coding problems, with a strong focus on collaborative problem-solving.
Online Assessment
3 recordsThis stage appears in the dataset but does not yet have a richer written summary.
Outcome mix
What Anthropic usually signals
Representative questions from the visible record set
These examples help users understand the concrete question flavor without dumping the entire raw database into the public page.
Multithreaded Web Crawler (Thread-Safe)
(Insufficient information: VO Q2 was only mentioned as possibly file dedup or LRU cache; cannot be r…
Fastest distribution of a large file from cloud storage to 1000 hosts under bandwidth limits
## Problem: Fastest distribution of a large file from cloud storage to 1000 hosts under bandwidth limits
Implement a bank system with two core operations: `transfer` and `transfer_accept`.
Implement an LRU Cache with Disk Persistence (Decorator-style or Class-style)
How to prepare for Anthropic
The prep layer should stay practical: what to review, which LeetCode patterns recur, and how GhostInterview fits the live round instead of just prep week.
Prep focus
Use GhostInterview during the actual interview
GhostInterview is not just for prep. Use it during live interview loops and follow-up pressure while the conversation is still happening. On supported platforms, the overlay is designed to stay hidden on screen share.
Related LeetCode patterns
These are the recurring problem families worth reviewing before a similar loop.
Design
System design skills are crucial as many interviews focus on architecture and scaling systems.
Hash Table
LeetCode-style problems involving hash tables test problem-solving efficiency and optimal data structuring.
Tree
Tree problems assess a candidate's ability to navigate complex recursive logic and efficient data structure manipulation.
Open representative Anthropic records
This public page summarizes the pattern. The database is where users inspect the actual record detail, stage context, and full write-up.
2026 Q1 · Technical Interview · Unknown
Anthropic technical interview record for a Software Engineer role. Technical Interview record for Anthropic for a Software Engineer role. I'm wondering if the Q2 at Anth…
Open in leaked questionsI had a phone screen with Anthropic focused on system design.2026 Q1 · Phone Screen · Unknown
Anthropic phone screen record for a Software Engineer role. Phone Screen record for Anthropic for a Software Engineer role. Given a big file, you need to stream it from…
Open in leaked questionsAnthropic OA new prompt2026 Q1 · Online Assessment · Unknown
Anthropic online assessment record for a Software Engineer role. Online Assessment record for Anthropic for a Software Engineer role. Has anyone seen an OA for a toy sim…
Open in leaked questionsRelated GhostInterview pages
FAQ
What types of questions are asked in the technical interview?
Expect questions on system design, coding challenges, and sometimes tree and recursion problems.
How can I prepare for Anthropic's system design questions?
Study large-scale system design and be prepared to discuss trade-offs, scalability, and architecture decisions.
What is the focus of the phone screen interview?
The phone screen focuses on testing your coding ability and fundamental problem-solving skills.
How important are tree and recursion problems?
These problems test your ability to think recursively and understand complex data structures, which are crucial for problem-solving.
What is the onsite interview like at Anthropic?
The onsite interview includes deeper technical discussions, coding challenges, and system design exercises, often with collaborative problem-solving.