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Technical hiring assessments · October 2026 Edition

Coderbyte vs Codility

One of fourteen models named Coderbyte first on the direct prompt; three named Codility. Coderbyte was named by twelve of the fourteen models and Codility by fourteen and Coderbyte carries 22 labels and Codility 53, so the shares are not directly comparable.

Coderbyte

accepted challenger

Named in two categories this edition.

Codility

accepted challenger

Named in three categories this edition.

First-choice share10%9%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate9%25%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#6A position in a field of 9; printed, not drawn.
Labels2253A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Coderbyte 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 Coderbyte · HackerRank vs Codility · CodeSignal vs Coderbyte

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.
CoderbyteFirst choices, of fourteen modelsCodility
Direct132 against Codility
Paraphrase011 against Codility
Comparative02
Budget-constrained501 against Coderbyte · 2 against Codility
Scale-constrained01
Negative101 against Coderbyte · 8 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.

Across every category in the October 2026 Edition, Coderbyte and Codility were named in the same answer fifty-seven times, of the 82 answers naming Coderbyte and the 212 naming Codility. In those answers Codility took the first choice eight times and Coderbyte twenty-two.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Coderbyte and Codility 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
Coderbyte Codility first choice named as an alternative argued againstblank: not namedEach cell is one answer, Coderbyte on the left and Codility on the right.

The direct prompt

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

Coderbyte first, Codility not the choice

1 of 14 modelsCodility was named in the answer but not as the choice, or not at all.
Kimi K2Coderbyte alternatives: HackerRank, TestGorilla

Codility first, Coderbyte an alternative

3 of 14 modelsCoderbyte 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

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.
GPT-5.4 miniHackerRank alternatives: CodeSignal, Codility
Perplexity SonarCodeSignal alternatives: Coderbyte, DevSkiller
Grok 4.1 FastHackerRank alternatives: CodeSignal, CoderPad, Coderbyte, Codility
Llama 4 MaverickGoodfit alternatives: CodeSignal, Coderbyte, HackerRank
Qwen 3.7 FlashCodeSignal alternatives: CoderPad, Codility, TestGorilla, Voomer
Muse Glimmer 30BCodeSignal, DevSkiller, HackerRank alternatives: Codility

Neither was named

4 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
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
Coderbyte leads by nineteen points.
Coderbyte22%#1 of 8
Codility3%#7 of 8
The full small business standing →
Mid-marketThe figures above
Coderbyte leads by two points.
Coderbyte10%#4 of 9
Codility9%#6 of 9
The full mid-market standing →
Enterprise
Coderbyte leads by seven points.
Coderbyte18%#2 of 8
Codility11%#4 of 8
The full enterprise standing →

What the models said about Coderbyte

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

“Frequently called out as one of the worst by candidates due to bugs ... "riddled with bugs"” Grok 4.1 Fast · negative prompt · hard negative
“Some platforms (like Coderbyte) have cheap base prices but charge add-ons for proctoring” DeepSeek V4 Flash · budget prompt · soft negative
“Best for Regular Hiring: Coderbyte ... unlimited plan offers the best value.” Kimi K2 · budget prompt · first choice
“For a small company watching cash flow, I'd start with Coderbyte's monthly plan.” GPT-6 Luna · budget prompt · first choice
“Coderbyte stands out as one of the best coding assessment platforms” Grok 4.1 Fast · budget prompt · first choice

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
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.