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Index › Talent acquisition › Candidate assessment › HackerRank vs Testlify
Candidate assessment · October 2026 Edition

HackerRank vs Testlify

Zero of fourteen models named HackerRank first on the direct prompt; zero named Testlify. HackerRank was named by ten of the fourteen models and Testlify by nine and HackerRank carries 23 labels and Testlify 12, so the shares are not directly comparable.

HackerRank

accepted challenger

Named in five categories this edition.

Testlify

accepted challenger

Named in two categories this edition.

First-choice share2%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate9%8%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#4A position in a field of 12; printed, not drawn.
Labels2312A 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 nine of the fourteen direct answers. TestGorilla vs HackerRank · TestGorilla vs Testlify · 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 modelsTestlify
Direct00
Paraphrase101 against HackerRank
Comparative20
Budget-constrained011 against HackerRank · 1 against Testlify
Scale-constrained00
Negative10
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 HackerRank and Testlify 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
HackerRank Testlify first choice named as an alternative argued againstblank: not namedEach cell is one answer, HackerRank on the left and Testlify on the right.

The direct prompt

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

Neither was the first choice, one was named

2 of 14 modelsThe answer put something else first and named one of the two as an alternative.
GPT-5.4 miniTestGorilla alternatives: Codility, HackerRank, Mercer | Mettl
GLM 4.7 FlashXTestGorilla alternatives: Testlify, Vervoe

Neither was named

12 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5no first choice
Gemini 3.5 FlashTestGorilla alternatives: Criteria Corp, The Predictive Index, Vervoe
Perplexity SonarCriteria Corp alternatives: HireVue, TestGorilla, The Predictive Index
Grok 4.1 FastCriteria Corp alternatives: HireVue, TestGorilla, The Predictive Index
Mistral SmallCriteria Corp, Evalart alternatives: Adaface
DeepSeek V4 FlashCriteria Corp alternatives: TestGorilla, eSkill
Llama 4 Maverickno first choice
Qwen 3.7 FlashTestGorilla alternatives: CodeSignal, HireVue, Humantic AI
Kimi K2Criteria Corp alternatives: TestGorilla, The Predictive Index, Vervoe, Wonderlic
MiniMax M2.5Evalart, Toggl Hire
GPT-6 LunaCriteria Corp alternatives: TestGorilla
Muse Glimmer 30BCriteria Corp alternatives: Evalart

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
HackerRank leads by two points.
HackerRank2%#6 of 13
Testlify0%#7 of 13
The full small business standing →
Mid-marketThe figures above
Level: the same share of first choices.
HackerRank2%#3 of 12
Testlify2%#4 of 12
The full mid-market standing →
Enterprise
HackerRank leads by two points.
HackerRank2%#7 of 11
Testlify0%#– of 11
The full enterprise standing →

What the models said about HackerRank

No label in this category carried a quote.

What the models said about Testlify

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

“starts at $198/month, but a bit pricier” GPT-5.4 mini · budget prompt · soft negative
“Testlify is the clearest pick from these results because it combines a very low entry price with a large test library” Perplexity Sonar · budget prompt · first choice
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.