Technical hiring assessments · October 2026 Edition
Codility vs DevSkiller
Three of fourteen models named Codility first on the direct prompt; one named DevSkiller. Codility was named by fourteen of the fourteen models and DevSkiller by nine and Codility carries 53 labels and DevSkiller 10, so the shares are not directly comparable.
Named in three categories this edition.
Named in two categories this edition.
First-choice share9%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate25%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#6#8A position in a field of 9; printed, not drawn.
Labels5310A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Codility reading right to left. Rank and label count are printed, not drawn.HackerRank was named alongside these two in ten of the fourteen direct answers. HackerRank vs Codility · HackerRank vs DevSkiller · CodeSignal vs Codility
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 technical hiring assessments page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
CodilityFirst choices, of fourteen modelsDevSkiller
Direct312 against Codility
Paraphrase101 against Codility
Comparative20
Budget-constrained002 against Codility
Scale-constrained10
Negative008 against Codility
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Codility and DevSkiller stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | | |||
| GPT-5.4 mini | | | | |||
| Gemini 3.5 Flash | | | ||||
| Perplexity Sonar | | | ||||
| Grok 4.1 Fast | | | | | | |
| 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 DevSkiller first choice named as an alternative argued againstblank: not namedEach cell is one answer, Codility on the left and DevSkiller on the right.The direct prompt
The plain question, one answer per model, grouped by where Codility and DevSkiller stood in it.
Codility first, DevSkiller not the choice
3 of 14 modelsDevSkiller was named in the answer but not as the choice, or not at all.DeepSeek V4 FlashCodility alternatives: CodeSignal, HackerRank
GLM 4.7 FlashXCodility, TestGorilla alternatives: CodeSignal, Coderbyte, HackerRank
MiniMax M2.5Codility alternatives: AssessHub, CoderPad, HackerRank
DevSkiller first, Codility an alternative
1 of 14 modelsCodility was named in the answer but not as the choice, or not at all.Muse Glimmer 30BCodeSignal, DevSkiller, HackerRank alternatives: Codility
Neither was the first choice, one was named
4 of 14 modelsThe answer put something else first and named one of the two as an alternative.GPT-5.4 miniHackerRank alternatives: CodeSignal, Codility
Perplexity SonarCodeSignal alternatives: Coderbyte, DevSkiller
Grok 4.1 FastHackerRank alternatives: CodeSignal, CoderPad, Coderbyte, Codility
Qwen 3.7 FlashCodeSignal alternatives: CoderPad, Codility, TestGorilla, Voomer
Neither was named
6 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5HackerEarth, TestGorilla alternatives: CodeSignal
Gemini 3.5 FlashCoderPad, Woven alternatives: CodeSignal
Mistral SmallGoodfit alternatives: HackerRank
Llama 4 MaverickGoodfit alternatives: CodeSignal, Coderbyte, HackerRank
Kimi K2Coderbyte alternatives: HackerRank, TestGorilla
GPT-6 LunaCodeSignal Hire Grow alternatives: CoderPad, HackerRank
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
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Codility leads by three points.
Codility3%#7 of 8DevSkiller0%#– of 8Mid-marketThe figures above
Enterprise
What the models said about Codility
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.
“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
What the models said about DevSkiller
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.
“CodeSignal / DevSkiller are commonly recommended for 50-500 hires mid-market teams” Muse Glimmer 30B · direct prompt · first choice
“CodeSignal or DevSkiller is explicitly listed for *mid-market (50–500 hires)*” Perplexity Sonar · direct prompt · alternative
“Uses the RealLifeTesting" methodology... realistic code scenarios” GLM 4.7 FlashX · comparative prompt · alternative
Also compared
HackerRank vs CodilityHackerRank vs DevSkillerCodeSignal vs CodilityCodeSignal vs DevSkillerCoderPad vs CodilityCoderPad vs DevSkillerCoderbyte vs CodilityCoderbyte vs DevSkillerTestGorilla vs CodilityTestGorilla vs DevSkillerCodility vs HackerEarthHackerEarth vs DevSkillerAll twenty-eight head-to-head pages and the full technical hiring assessm standing
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.