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Candidate assessment · November 2026 Edition

HackerRank vs CodeSignal

One of fourteen models named HackerRank first on the direct prompt; zero named CodeSignal. HackerRank was named by fourteen of the fourteen models and CodeSignal by eleven and HackerRank carries 41 labels and CodeSignal 14, so the shares are not directly comparable.

HackerRank

accepted challenger

Named in four categories this edition.

CodeSignal

accepted challenger

Named in three categories this edition.

First-choice share2%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate7%7%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#5#6A position in a field of 12; printed, not drawn.
Labels4114A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, HackerRank reading right to left. Rank and label count are printed, not drawn.TestGorilla was named alongside these two in twelve of the fourteen direct answers. TestGorilla vs HackerRank · TestGorilla vs CodeSignal · Criteria Corp vs HackerRank

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

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
HackerRankFirst choices, of fourteen modelsCodeSignal
Direct10
Paraphrase011 against HackerRank
Comparative20
Budget-constrained001 against HackerRank · 1 against CodeSignal
Scale-constrained00
Negative001 against HackerRank
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.

Across every category in the November 2026 Edition, HackerRank and CodeSignal were named in the same answer 173 times, of the 309 answers naming HackerRank and the 194 naming CodeSignal. In those answers CodeSignal took the first choice fifteen times and HackerRank thirty-one.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where HackerRank and CodeSignal stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
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
HackerRank CodeSignal first choice named as an alternative argued againstblank: not namedEach cell is one answer, HackerRank on the left and CodeSignal on the right.

The direct prompt

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

HackerRank first, CodeSignal not the choice

1 of 14 modelsCodeSignal was named in the answer but not as the choice, or not at all.
Mistral SmallCodility, HackerRank alternatives: TestGorilla, Thomas International

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.
DeepSeek V4 FlashTestGorilla alternatives: Canditech, Codility, Criteria Corp, HackerRank
Llama 4 MaverickThomas International alternatives: Codility, EmployTest, HackerRank, Weirdly
Qwen 3.7 FlashTestGorilla alternatives: HackerRank, PI Online, Spark Hire, Vervoe
Kimi K2TestGorilla alternatives: Codility, Criteria Corp, HackerRank, HireVue, Vervoe
MiniMax M2.5Prevue HR, TestGorilla alternatives: Codility, Criteria Corp, HackerRank, HireVue
Muse Glimmer 30BCodility, Thomas alternatives: HackerRank, HireVue, Weirdly

Neither was named

7 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Criteria Corp, Harver, Plum alternatives: JobCannon, SHL, TestGorilla, Vervoe, Wonderlic
GPT-5.4 miniCriteria Corp alternatives: HighMatch, TestGorilla, Testlify, The Predictive Index
Gemini 3.5 FlashTestGorilla alternatives: Criteria Corp, The Predictive Index, Vervoe
Perplexity SonarCriteria Corp alternatives: Codility, TestGorilla, Vervoe
Grok 4.20Criteria Corp alternatives: Harver, TestGorilla, Thomas International
GLM 4.7 FlashXTestGorilla alternatives: Criteria Corp, HireVue, Thomas International
GPT-6 LunaCriteria Corp alternatives: TestGorilla

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
Level: the same share of first choices.
HackerRank0%#7 of 11
CodeSignal0%#– of 11
The full small business standing →
Mid-marketThe figures above
Level: the same share of first choices.
HackerRank2%#5 of 12
CodeSignal2%#6 of 12
The full mid-market standing →
Enterprise
Level: the same share of first choices.
HackerRank2%#8 of 12
CodeSignal2%#9 of 12
The full enterprise standing →

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

What the models said about CodeSignal

No label in this category carried a quote.

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.