# Codility: how AI models rank it, September 2026

HR AI Recommendation Index, September 2026 Edition. Named in 65 judge labels across 3 categories by 12 of 12 models. Page: https://hr-ai-index.com/vendors/codility/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Technical hiring assessments | 5% | 7 | 32% | 44 |
| Candidate assessment | 0% | 13 | 12% | 17 |
| Skills intelligence | 0% | 34 | 0% | 4 |

## What the models said for it

- "Codility (structured, automated grading) or HackerEarth (large question bank, strong analytics)." (MiniMax M2.5, Candidate assessment)
- "Tools like TestDome, Codility (for coders) ... are generally well-regarded when used correctly" (Qwen 3.7 Flash, Candidate assessment)
- "Codility offers the best balance of capability, reputation, and price" (Kimi K2, Technical hiring assessm)
- "Often ranked as the best overall, especially for enterprise use." (Mistral Small, Technical hiring assessm)

## And against it

- "it is often described as "quite pricey" ... Codility has had issues with "test integrity," where questions and answers are not sufficiently hidden from recruiters" (GLM 4.7 FlashX, Technical hiring assessm)
- "Opaque scoring: Candidates and reviewers criticize edge-case scoring and lack of transparency" (MiniMax M2.5, Technical hiring assessm)
- "Why we recommend avoiding HackerRank or Codility (for now)" (Gemini 3.5 Flash, Technical hiring assessm)
- "like HackerRank or Codility when using generic public questions) are easily solved by modern generative AI models" (Gemini 3.5 Flash, Candidate assessment)

## Record

- Method: https://hr-ai-index.com/methodology/
- Raw judge labels and full responses: https://hr-ai-index.com/data/
- License: CC BY 4.0. Cite as HR AI Recommendation Index, September 2026 Edition, hr-ai-index.com.