# TestGorilla vs Codility: which do AI models recommend for technical hiring assessm, October 2026

HR AI Recommendation Index, October 2026 Edition, Technical hiring assessments. Two of fourteen models named TestGorilla first on the direct prompt; three named Codility. Page: https://hr-ai-index.com/talent/technical-hiring-assessments/testgorilla-vs-codility/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| TestGorilla | 10% | #5 of 9 | 32% | 28 | 13 of 14 |
| Codility | 9% | #6 of 9 | 25% | 53 | 14 of 14 |

## The direct prompt, model by model

- GLM 4.7 FlashX: both first (first choices: Codility, TestGorilla) (alternatives: CodeSignal, Coderbyte, HackerRank)
- Claude Haiku 4.5: testgorilla first (first choices: HackerEarth, TestGorilla) (alternatives: CodeSignal)
- DeepSeek V4 Flash: codility first (first choices: Codility) (alternatives: CodeSignal, HackerRank)
- MiniMax M2.5: codility first (first choices: Codility) (alternatives: AssessHub, CoderPad, HackerRank)
- GPT-5.4 mini: neither first, one named (first choices: HackerRank) (alternatives: CodeSignal, Codility)
- Grok 4.1 Fast: neither first, one named (first choices: HackerRank) (alternatives: CodeSignal, CoderPad, Coderbyte, Codility)
- Qwen 3.7 Flash: neither first, one named (first choices: CodeSignal) (alternatives: CoderPad, Codility, TestGorilla, Voomer)
- Kimi K2: neither first, one named (first choices: Coderbyte) (alternatives: HackerRank, TestGorilla)
- Muse Glimmer 30B: neither first, one named (first choices: CodeSignal, DevSkiller, HackerRank) (alternatives: Codility)
- Gemini 3.5 Flash: neither named (first choices: CoderPad, Woven) (alternatives: CodeSignal)
- Perplexity Sonar: neither named (first choices: CodeSignal) (alternatives: Coderbyte, DevSkiller)
- Mistral Small: neither named (first choices: Goodfit) (alternatives: HackerRank)
- Llama 4 Maverick: neither named (first choices: Goodfit) (alternatives: CodeSignal, Coderbyte, HackerRank)
- GPT-6 Luna: neither named (first choices: CodeSignal Hire Grow) (alternatives: CoderPad, HackerRank)

## What the models said about TestGorilla

- "TestGorilla-style general testing platforms when your need is deep technical screening, because they are broader assessment suites rather than specialized developer tools." (Perplexity Sonar, negative prompt, soft negative)
- "HackerEarth and TestGorilla stand out for their balance of features, pricing accessibility, and ATS integration compatibility without requiring full enterprise implementations." (Claude Haiku 4.5, direct prompt, first choice)
- "If you need zero upfront cost: start with TestGorilla’s free plan or LeetCode’s free problem bank for initial screening" (Muse Glimmer 30B, budget prompt, first choice)

## What the models said about Codility

- "Avoid if budget is the main constraint... Codility tends to start higher and is more enterprise-oriented" (GPT-5.4 mini, budget prompt, hard negative)
- "(e.g., HackerRank, Codility, CodeSignal): ... often criticized for not reflecting real-world job tasks" (Mistral Small, negative prompt, hard negative)
- "High negative sentiment (e.g., labeled "hostile candidate experience" in AI model analyses)" (Grok 4.1 Fast, negative prompt, hard negative)
- "### 1. Codility - Best for: Mid-market to enterprise companies needing secure, scalable assessments" (MiniMax M2.5, direct prompt, first choice)
- "Choose HackerRank or Codility if you are an enterprise needing rigorous automated screening" (Gemini 3.5 Flash, comparative prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.