| What it does | Practice for the new AI-assisted coding interview format with real codebases and an AI assistant
| Personality, With a Little Character
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| Stage | Startup
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| Founded | 2025
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| Based in | Not given
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| Pricing model | Freemium
| Paid
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| Pricing | Free: a few complete problems with every stage and the first stage of additional problems. Nyrion Pro: $19/month or $149/year (35% off).
| Free result included with all tests. Detailed report: $2.99 one-time purchase, no subscription.
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| Key features | - Real multi-stage codebases instead of algorithm snippets
- AI assistant in the editor for directing and collaboration
- Test-gated progression with escalating requirements
- AI interviewer evaluation and detailed reports
- Problems tagged by company and difficulty level
- Coverage of multiple major tech company formats
- Persistent sessions and progress tracking
- Curated and continuously monitored problem content
- No AI solution generation without user direction
| - Big Five questionnaire with 50 questions in 6-8 minutes exploring five personality dimensions
- 16-Type test with 32 questions in 4-6 minutes examining preference pairs and habits
- Enneagram questionnaire with 36 questions in 5-7 minutes reflecting on motivation patterns
- Free instant character card and personality label without account or payment
- Original AI-assisted geometric illustrations and character nicknames in results
- Private report links with email delivery option
- Public share links showing only character name and quote
- Results saved for 30 days in browser without login
- Visible scoring methodology documentation
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| What makes it different | - Practices the actual AI-assisted format now used by major tech companies, not traditional algorithm interviews
- Built by engineers who experienced these new interview formats themselves
- Problems curated from real candidate reports with continuous monitoring and updates
- Evaluates and reports on agent direction skills, not just solution correctness
- Free tier lets you try the format fully before paying
| - No subscription or account required for free results
- Results are deterministic and not processed through AI language models
- Independent project with original questionnaires and character assets
- Transparent about limitations and does not invent endorsements or success rates
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 7 ▲ +1 (up) since last check | 2 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 7 | 2 |
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| Citation Flow (Majestic) | 26 | 23 |
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| Referring domains (Majestic) | 21 | 14 |
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Nyrion
Big 5 Test