How we compare

Every team uses AI.Most hiring processes pretend they don’t.

The few that acknowledge AI get it wrong in predictable ways. Here’s what those ways are — and what we do instead.

The market

Four broken approaches

Algorithmic platforms

HackerRankCodeSignalLeetCode-style screens

What they measure

Pattern recall, speed

Role of AI

Banned or ignored

Scoring

Automated test cases

Why it falls short

Like testing a carpenter by taking away their power tools and handing them a hand saw. You'll learn something — but not whether they can build your house. And once AI can solve any of these puzzles in seconds, the assessment loses its discriminating power entirely.

Live pairing

KaratCoderPadCodility live

What they measure

Communication, real-time coding

Role of AI

Usually banned

Scoring

Interviewer judgment

Why it falls short

Subjective and uncalibrated. Burns expensive senior-engineer time per candidate. Penalizes candidates who'd reach for AI on the real job. And rule-following becomes the implicit signal — candidates who follow the no-AI rule lose to candidates who quietly work around it.

AI-detection tools

Stylometric add-onskeystroke monitorscopy-paste tracking

What they measure

Whether AI was used

Role of AI

Adversary to detect

Scoring

Stylometric heuristics

Why it falls short

An arms race the platform always loses. AI-generated code doesn't have a detectable accent that survives prompting style and post-editing. False positives penalize fast typists; false negatives miss lightly edited AI output. And even if detection were perfect — the candidate used the same tools they'd use on the job. That's not cheating. That's engineering in 2026.

AI-assisted platforms

Newer entrants observing AI use passively

What they measure

Prompt quality as proxy

Role of AI

Present but passively observed

Scoring

Qualitative rubrics on process

Why it falls short

Measures process, not output. Anyone can produce working code in 30 minutes with AI — so the rubric gets pushed onto prompt style and conversational tone, which don't reliably correlate with judgment. You end up hiring on vibes from the debrief.

The question isn’t “did they use AI?”

The question is — when the AI was wrong, did they catch it?

What we do instead

We make AI the instrument of measurement.

Screen

Give candidates a real IDE and a real AI assistant. Plant known flaws in the AI’s context. Measure who catches them.

What we measure

Whether the candidate caught what the AI got wrong

Role of AI

Deliberately adversarial — defends planted flaws

Scoring

Quantitative: every score traces to a specific planted flaw

Why this works

Because we planted the flaws, we have the answer key. The candidate either identified the bug and articulated why it was wrong, or they didn’t. No rubric interpretation. No interviewer calibration. Just evidence — graded against the engineering judgment that matters most on the job: pushing back on confident-but-wrong AI output.

Stop testing whether candidates can code without AI.
Start testing whether they can engineer with it.

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