Codility vs HackerEarth_

HackerEarth offers a larger question library and a developer community built around hackathons. Codility is built for organisations hiring engineers who work with AI, with deterministic scoring and a reviewable record behind the decision.

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Codility is built for organisations hiring engineers who work with AI, with fully deterministic scoring, a documented methodology and adverse impact monitoring at measured cut scores. It gives you one evaluation model to run across teams and regions, and a human stays accountable for every decision. Codility does not suit a team that wants a self-serve tool it can buy with a card.

HackerEarth pairs a large question library with a hackathon and developer community, and sells an AI interviewer alongside its assessments.

How Codility and HackerEarth compare

Capability	Codility	HackerEarth
Scoring	Fully deterministic scoring with full explainability. Criteria are fixed and weighted before release, and every score traces back to them	No public scoring methodology is documented, so a reviewer works from the result alone
Task library	More than 1,300 tasks, each validated by Assessment Scientists, calibrated for difficulty and monitored for adverse impact, plus virtually unlimited custom tasks created with AI through Codility’s dedicated task creation MCP, drawing on your own codebase if you choose	A library that scales by plan, from 5,000 questions to more than 25,000, plus psychometric tests for common roles. Per-task calibration and adverse impact data are not published
AI in the assessment	Claude Code is available inside Screen, Interview and Skills Intelligence, preconfigured in the VS Code terminal. You enable or disable the AI Assistant per assessment. With it enabled, every interaction is captured as reviewable AI activity. With it disabled, the integrity signals are designed to surface outside help	AI-assisted authoring and evaluation across the platform, with an AI interviewer sold as a separate product. Confirm current models and gating with the vendor
AI skills beyond engineering	AI for Business assesses how candidates and employees in business roles work with AI	Assessment content covering GenAI skills for engineering roles. A measure of how people in business roles work with AI is not documented
Integrity	ID verification, behavioral monitoring, code evolution replay, secure desktop mode designed to detect invisible AI overlays, copy-paste controls and Similarity Check, plus typing pattern detection and cheating apps detection in Preview. Signals resolve into one deterministic Integrity Risk level that shows which signals contributed, route to a human reviewer and never auto-reject a candidate	Smart Browser lockdown, video and audio proctoring, ID verification, shuffled question paths, plagiarism checks and a code player. Proctoring sits above the entry plan
Live interviews	Codility Interview runs in VS Code with a terminal, sidecar services, a whiteboard, a full transcript and one shared session, and stands on its own if screening is not the gap	FaceCode runs live sessions in a collaborative code editor with HD video, an interactive whiteboard, panels of up to five interviewers, and recordings with transcripts
Integrations	80+ integrations across applicant tracking systems (ATS), human resources information systems (HRIS) and scheduling tools, with support for single sign-on (SSO) and SAML	Applicant tracking system (ATS) and calendar integrations from the middle plan. Single sign-on (SSO), API access and user roles sit on the enterprise plan
Data hosting	US and EU hosting options available	EU hosting is not documented as an option

Competitor capabilities change. Details checked against public sources.

Which is the right fit?

Choose Codility if

You need fully deterministic, explainable scoring with a documented methodology behind the decision
You want candidates working with Claude Code, the AI posture set per assessment, and every interaction captured as reviewable AI activity for a human reviewer
You need one evaluation model to run across teams, regions and hiring volumes
You need integrity controls that resolve to reviewable evidence and one deterministic Integrity Risk level: ID verification, behavioral monitoring, code evolution replay, secure desktop mode and copy-paste controls
You want experts in the loop: Assessment Scientists on task design and cut scores, solution engineers on rollout

Choose HackerEarth if

You need the largest question library in this set, and volume matters more to you than per-task validation
Your programme leans on hackathons and developer community engagement as much as on assessment
You want the vendor’s AI to run first-round interviews instead of your own team

What reviewers say on G2

Codility, 904 reviewsHackerEarth, 608 reviews

Technical Screening

Codility92% 197 responses

HackerEarth88% 123 responses

How likely is it that you would recommend the product?

Codility92% 487 responses

HackerEarth90% 268 responses

Quality of Support

Codility91% 295 responses

HackerEarth88% 192 responses

Meets Requirements

Codility90% 372 responses

HackerEarth88% 195 responses

Ease of Setup

Codility91% 196 responses

HackerEarth90% 72 responses

Coding Development

Narrowest row

Codility89% 180 responses

HackerEarth88% 125 responses

Source: G2 compare report, Summer 2026

Platform plus people

Enterprise customers work with a named team, not a login page: Assessment Scientists and occupational psychologists on task design, cut scores and adverse impact, solution engineers on the platform, and advisory work on assessment strategy and AI best practices.

Ask each vendor who your team will actually work with after the sale.

Claude Code

Claude Code is available inside Codility Screen, Interview and Skills Intelligence. It is preconfigured in the VS Code terminal and requires no separate Claude account or API key.

Frequently asked questions

How do Codility and HackerEarth score technical skills?

Codility scoring is fully deterministic and explainable. Criteria are fixed and weighted before a task is released, cut scores are reviewed for adverse impact, and the method is published in a 76-page Technical Manual. HackerEarth does not publish an equivalent account of how its scores are constructed, so ask the vendor to walk you through one.

Does Codility offer an AI interviewer?

How is Codility Interview different from HackerEarth FaceCode?

How does Codility know whether a candidate tried to cheat?

Layered signals, and a reviewer who can see all of them in one place. Codility verifies identity with government-issued ID where you enable it, then measures what happens after: code pasted in from outside the environment, a copied task description, time away from the environment, abnormally fast completion, and a code evolution timeline that replays how the solution was built. Similarity Check compares submissions across candidates. Cheating apps detection is designed to surface helper apps that hide themselves from screen capture. When the AI Assistant is enabled, every interaction is captured as reviewable AI activity alongside the transcript.

Those signals resolve into one deterministic Integrity Risk level that shows which signals contributed. Signals route to a human reviewer and never auto-reject a candidate, and a similarity match ends in manual confirmation by design. HackerEarth documents Smart Browser lockdown, video and audio proctoring, identity verification and plagiarism checks, with proctoring sitting above the entry plan. Its signals are documented as individual feature reports. Ask each vendor what a reviewer sees when a signal fires, and who is accountable for the decision that follows.

How do we move from HackerEarth to Codility?

See what your engineers can really do

Whether you are hiring your next engineer or understanding the team you already have, the first step is the same. Tell us what you are working on and we will show you how Codility can help you.