Question 1

What is CodeArena?

Accepted Answer

CodeArena is a B2B technical interview suite for companies hiring engineers in the AI era. It measures how candidates code, direct AI, critique generated output, and verify whether AI-produced code is correct.

Question 2

How is CodeArena different from traditional coding screens?

Accepted Answer

Traditional coding screens often assume candidates work without AI. CodeArena is built around the modern workflow: candidates solve coding tasks, write prompts, critique AI-generated work, and verify outputs with evidence.

Question 3

Is CodeArena free to use?

Accepted Answer

Developers can use CodeArena practice and problems for free. Companies pay for technical interviews, candidate invite links, automated grading, reports, and hiring workflows.

Question 4

What programming languages does CodeArena support?

Accepted Answer

CodeArena supports 10 programming languages: Python, JavaScript, TypeScript, Java, C, C++, C#, Go, Rust, and SQL. All languages are available in both free and Pro tiers.

Question 5

What is the Fundamentals Index?

Accepted Answer

The Fundamentals Index is a structured signal in the candidate report. It summarizes demonstrated engineering fundamentals and flags patterns such as AI dependence, weak verification, or strong independent judgment.

Question 6

Can I practice coding alone on CodeArena?

Accepted Answer

Yes. Developers can practice coding problems and prompt challenges for free. Practice is the public developer surface; company interviews are paid by hiring teams.

Question 7

Do candidates pay for interviews?

Accepted Answer

No. Companies pay for interviews. Candidates join through invite links and can use free practice resources to prepare.

Question 8

How does CodeArena prevent cheating?

Accepted Answer

CodeArena has anti-cheat monitoring including tab switch detection, copy-paste pattern analysis, and behavioral analysis. All code runs in secure sandboxed environments.