Hire developers who
actually know how to use AI
84% of developers use AI daily — but every hiring platform still bans it. CollabSignal is the first platform that puts AI in the candidate's hands and measures what matters.
The world changed.
Hiring didn't.
Every hiring platform tests whether developers can write a for-loop from scratch. That's like testing an accountant on mental arithmetic while banning calculators.
What platforms test today
Can they code without AI?
Tests raw memorization of algorithms in a sterile environment
Did they get the right answer?
Binary pass/fail on output — ignores the process entirely
How fast did they type?
Measures speed, not understanding or engineering judgment
Lines of code written
Quantity over quality — a metric from the 1990s
What actually matters in 2026
Can they use AI effectively?
Do they write specific, contextual prompts that get results?
Do they verify AI output?
Do they test, review, and catch bugs before shipping?
How specific are their prompts?
Do they include file references, context, and constraints?
Do they test before shipping?
Do they run tests after every AI-generated change?
From invite link to
hiring decision in
minutes
No SDK. No integration. No setup friction. Just share a link.
Create a Room
Pick a language, point to a GitHub repo, write a challenge prompt. Takes under 2 minutes.
Candidate Codes with AI
Full VS Code in the browser with a pre-configured AI agent. They work exactly like on the job.
Review AI Insights
Get an AI-generated evaluation, 16 behavioral metrics, code diffs, and a full session replay.
Metrics no one else has
Research-backed behavioral metrics grounded in the SPACE framework, GitHub Copilot studies, and MIT/Wharton field experiments.
Acceptance Rate
What % of AI output does the candidate accept without modification? Separates critical thinkers from copy-pasters.
Modification Rate
How much do they edit AI-generated code? High modification = they review before shipping.
Prompt Specificity
Quality score of AI prompts — length, file references, context inclusion. Do they know how to direct AI?
Time to First AI Prompt
Do they explore the problem first or immediately delegate to AI? Reveals problem-solving instincts.
Verification Rate
What % of AI responses are followed by test runs? Measures testing discipline with AI-generated code.
Bug Detection Rate
We inject bugs intentionally. How many does the candidate catch? 8 mutation types, fully operational.
Built different from day one
Every incumbent was built for a world where AI didn't exist. We were built for the world that does.
| Capability | HackerRank | CodeSignal | LeetCode | CollabSignal |
|---|---|---|---|---|
| AI agent in assessment | ✕ | ✕ | ✕ | ✓ Pre-configured |
| Prompt quality analysis | ✕ | ✕ | ✕ | ✓ Scored |
| AI acceptance rate tracking | ✕ | ✕ | ✕ | ✓ Per-interaction |
| Verification discipline metrics | ✕ | ✕ | ✕ | ✓ Tracked |
| Injected bug detection | ✕ | ✕ | ✕ | ✓ 8 mutation types |
| Full IDE environment | ✕ Sandbox | ✕ Sandbox | ✕ Editor | ✓ VS Code |
| AI-generated evaluation report | ✕ | ✕ | ✕ | ✓ One-click |
Simple, transparent pricing
Start free. Scale when you're ready. No per-interview fees.
Free
- 5 sessions per month
- Basic metrics dashboard
- 1 team member
- Community support
Team
- Unlimited sessions
- Full 16-metric dashboard
- AI-generated evaluations
- Event timeline & replay
- Up to 10 team members
- Priority support
Enterprise
- Everything in Team
- SSO & SAML
- Custom challenge repos
- Candidate comparison dashboard
- API access
- Dedicated support
Ready to hire for the AI era?
Join the waitlist and be among the first to assess developer AI collaboration skills with research-backed metrics.