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Technical hiring assessments · October 2026 Edition

CodeSignal vs DevSkiller

Three of fourteen models named CodeSignal first on the direct prompt; one named DevSkiller. CodeSignal was named by fourteen of the fourteen models and DevSkiller by nine and CodeSignal carries 58 labels and DevSkiller 10, so the shares are not directly comparable.

CodeSignal

accepted challenger

Named in four categories this edition.

DevSkiller

accepted challenger

Named in two categories this edition.

First-choice share16%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate17%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#8A position in a field of 9; printed, not drawn.
Labels5810A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, CodeSignal 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 CodeSignal · HackerRank vs DevSkiller · CodeSignal vs CoderPad

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.
CodeSignalFirst choices, of fourteen modelsDevSkiller
Direct31
Paraphrase40
Comparative10
Budget-constrained102 against CodeSignal
Scale-constrained10
Negative008 against CodeSignal
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 CodeSignal and DevSkiller stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
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
CodeSignal DevSkiller first choice named as an alternative argued againstblank: not namedEach cell is one answer, CodeSignal on the left and DevSkiller on the right.

The direct prompt

The plain question, one answer per model, grouped by where CodeSignal and DevSkiller stood in it.

Both were the first choice

1 of 14 modelsThe answer named them together, and the judge labeled each a first choice.
Muse Glimmer 30BCodeSignal, DevSkiller, HackerRank alternatives: Codility

CodeSignal first, DevSkiller an alternative

2 of 14 modelsDevSkiller was named in the answer but not as the choice, or not at all.
Perplexity SonarCodeSignal alternatives: Coderbyte, DevSkiller
Qwen 3.7 FlashCodeSignal alternatives: CoderPad, Codility, TestGorilla, Voomer

Neither was the first choice, one was named

7 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5HackerEarth, TestGorilla alternatives: CodeSignal
GPT-5.4 miniHackerRank alternatives: CodeSignal, Codility
Gemini 3.5 FlashCoderPad, Woven alternatives: CodeSignal
Grok 4.1 FastHackerRank alternatives: CodeSignal, CoderPad, Coderbyte, Codility
DeepSeek V4 FlashCodility alternatives: CodeSignal, HackerRank
Llama 4 MaverickGoodfit alternatives: CodeSignal, Coderbyte, HackerRank
GLM 4.7 FlashXCodility, TestGorilla alternatives: CodeSignal, Coderbyte, HackerRank

Neither was named

4 of 14 modelsThe answer made no first choice from these two in this category.
Mistral SmallGoodfit alternatives: HackerRank
Kimi K2Coderbyte alternatives: HackerRank, TestGorilla
MiniMax M2.5Codility alternatives: AssessHub, CoderPad, HackerRank
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
CodeSignal leads by five points.
CodeSignal5%#5 of 8
DevSkiller0%#– of 8
The full small business standing →
Mid-marketThe figures above
CodeSignal leads by fourteen points.
CodeSignal16%#2 of 9
DevSkiller2%#8 of 9
The full mid-market standing →
Enterprise
CodeSignal leads by thirteen points.
CodeSignal13%#3 of 8
DevSkiller0%#– of 8
The full enterprise standing →

What the models said about CodeSignal

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.

“Avoid enterprise-only platforms like CodeSignal, which require contacting sales and have no transparent pricing” DeepSeek V4 Flash · budget prompt · hard negative
“Reports of technical glitches like poor error highlighting, code wiping on refresh, and unreliable editor” Grok 4.1 Fast · negative prompt · hard negative
“(e.g., HackerRank, Codility, CodeSignal): ... often criticized for not reflecting real-world job tasks” Mistral Small · negative prompt · hard negative
“CodeSignal / DevSkiller are commonly recommended for 50-500 hires mid-market teams wanting a standardized score and predictable pricing.” Muse Glimmer 30B · direct prompt · first choice
“I'd recommend CodeSignal as the top technical interview tool for a mid-sized B2B company” MiniMax M2.5 · paraphrase prompt · first choice
“If you want a single recommendation, I'd pick CodeSignal for a mid-market B2B company” Perplexity Sonar · direct 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

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.