# Technical hiring assessments for enterprise buyers: what AI models recommend, September 2026

HR AI Recommendation Index, September 2026 Edition. Asked as "coding assessment platform" and as "technical interview tool", six framings each, to twelve models with search on, on behalf of an enterprise B2B company. Page: https://hr-ai-index.com/talent/technical-hiring-assessments/enterprise/

**Standing:** HackerRank leads with 42% of first choices; verdict clear leader. 43 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | HackerRank | 42% | 18% | 55 |
| 2 | Codility | 19% | 18% | 55 |
| 3 | CodeSignal | 12% | 20% | 45 |
| 4 | CoderPad | 9% | 19% | 42 |
| 5 | Mercer | Mettl | 0% | 15% | 13 |
| 6 | TestGorilla | 0% | 23% | 13 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: HackerRank; alternatives Codility, HackerEarth, iMocha
- GPT-5.4 mini: CodeSignal; alternatives HackerRank
- Gemini 3.5 Flash: Codility, HackerRank; alternatives CodeSignal, CoderPad, HackerEarth
- Perplexity Sonar: HackerRank; alternatives CoderPad, Codility, Mercer | Mettl
- Grok 4.1 Fast: HackerRank; alternatives CodeSignal, CoderPad, Codility
- Mistral Small: Augment Code, Codility
- DeepSeek V4 Flash: HackerRank; alternatives CodeSignal, CoderPad, Codility
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: HackerRank; alternatives CodeSignal, Codility
- Kimi K2: HackerRank; alternatives CodeSignal, Codility
- GLM 4.7 FlashX: HackerRank; alternatives CodeSignal, CoderPad, Codility
- MiniMax M2.5: Codility; alternatives CodeSubmit, Index.dev

## Sources the answers cite

67 of 72 answers came back with a source list, from 12 of 12 models. Sites named in the most answers:

- hackerrank.com: 43 answers, 100 citations
- codility.com: 40 answers, 59 citations
- augmentcode.com: 37 answers, 48 citations
- codesignal.com: 27 answers, 44 citations
- coderpad.io: 22 answers, 34 citations
- testlify.com: 19 answers, 24 citations
- selectsoftwarereviews.com: 19 answers, 21 citations
- utkrusht.ai: 18 answers, 22 citations

Pages named in the most answers:

- https://augmentcode.com/tools/best-coding-assessment-tools-enterprise (35 answers)
- https://codility.com/how-to-choose-technical-assessment-platform (33 answers)
- https://hackerrank.com/writing/best-coding-assessment-tools (29 answers)
- https://goodfit.so/guides/best-coding-assessment-platforms (16 answers)
- https://selectsoftwarereviews.com/buyer-guide/online-coding-interview-tools (15 answers)
- https://codesubmit.io/blog/coding-assessment-tools-2024 (14 answers)
- https://hackerrank.com/writing/codility-vs-hackerrank-vs-codesignal-2025-enterprise-comparison (13 answers)
- https://coderpad.io/enterprise (12 answers)
- https://codesignal.com/blog/5-coding-assessment-platforms-for-your-technical-hiring (12 answers)
- https://hackerrank.com/about-us/enterprise-plan (11 answers)

## Warned against

- Codility: 10 of 55 labels negative. "Platforms to Avoid or Be Highly Cautious About:
1. Codility: ... Hostile candidate experience" (Grok 4.1 Fast, negative prompt)
- CodeSignal: 9 of 45 labels negative. "CodeSignal – technically excellent, but less flat-friendly ... they're the weakest of the three because they hold to metered pricing even at enterprise scale." (DeepSeek V4 Flash, budget prompt)
- HackerRank: 10 of 55 labels negative. "HackerRank | Mixed UI polish, unrealistic time limits, pricing requires quotes, strict evaluation criteria, AI plagiarism detection not foolproof" (GLM 4.7 FlashX, negative prompt)
- CoderPad: 8 of 42 labels negative. "has received a notably low security score (34/100, Grade D) ... with "High" risk designation and only 44% enterprise readiness" (MiniMax M2.5, negative prompt)

## 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.