Codility vs HackerRank
Two of fourteen models named Codility first on the direct prompt; one named HackerRank. Codility was named by thirteen of the fourteen models and HackerRank by fourteen and Codility carries 34 labels and HackerRank 41, so the shares are not directly comparable.
Named in four categories this edition.
Named in four categories this edition.
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; every quote names the model and the prompt it came from. Both figures come from the candidate assessment page.
By framing
CodilityFirst choices, of fourteen modelsHackerRank
Across every category in the November 2026 Edition, Codility and HackerRank were named in the same answer 222 times, of the 251 answers naming Codility and the 309 naming HackerRank. In those answers HackerRank took the first choice thirty-two times and Codility thirty-four.
Every model, every framing
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | ||||||
| GPT-5.4 mini | | | ||||
| Gemini 3.5 Flash | | | ||||
| Perplexity Sonar | | | | |||
| Grok 4.20 | | | ||||
| Mistral Small | | | | |||
| DeepSeek V4 Flash | | | | |||
| Llama 4 Maverick | | |||||
| Qwen 3.7 Flash | | | | | ||
| Kimi K2 | | | | | ||
| GLM 4.7 FlashX | | |||||
| MiniMax M2.5 | | | ||||
| GPT-6 Luna | | |||||
| Muse Glimmer 30B | | | |
Codility HackerRank first choice named as an alternative argued againstblank: not namedEach cell is one answer, Codility on the left and HackerRank on the right.The direct prompt
Both were the first choice
1 of 14 modelsThe answer named them together, and the judge labeled each a first choice.Codility first, HackerRank an alternative
1 of 14 modelsHackerRank was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
6 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
6 of 14 modelsThe answer made no first choice from these two in this category.Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
Codility2%#5 of 11HackerRank0%#7 of 11What the models said about Codility
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.
“these are often viewed unfavorably compared to competitors like HackerRank or HackerEarth” Qwen 3.7 Flash · negative prompt · hard negative
“positioned as best for repeatable, defensible technical hiring decisions... Codility scored highest on published criteria” Muse Glimmer 30B · comparative prompt · first choice
What the models said about HackerRank
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.
“Many AI hiring models specifically recommend avoiding HackerRank for small businesses” Mistral Small · negative prompt · hard negative
“If you are hiring engineers exclusively: Go with HackerRank for speed/volume or Codility for rigorous project-based verification.” Qwen 3.7 Flash · comparative prompt · first choice
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.