Coderbyte vs Codility
Zero of twelve models named Coderbyte first on the direct prompt; one named Codility. Coderbyte was named by eleven of the twelve models and Codility by twelve and Coderbyte carries 13 labels and Codility 44, so the shares are not directly comparable.
Named in two categories this edition.
Named in three categories this edition.
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve 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
CoderbyteFirst choices, of twelve modelsCodility
Across every category in the September 2026 Edition, Coderbyte and Codility were named in the same answer twenty-six times, of the 48 answers naming Coderbyte and the 186 naming Codility. In those answers Codility took the first choice one time and Coderbyte nine.
Every model, every framing
| 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 | | | | | |
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
Codility first, Coderbyte an alternative
1 of 12 modelsCoderbyte was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
6 of 12 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
5 of 12 modelsThe answer made no first choice from these two in this category.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
Coderbyte9%#3 of 7Codility0%#7 of 7Codility19%#2 of 6Coderbyte9%#– of 6What the models said about Coderbyte
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.
“Coderbyte has a mixed reputation. While it is widely used, it suffers from specific reliability and validity issues” Qwen 3.7 Flash · negative prompt · soft negative
“the best fit is usually Coderbyte or TestDome, with Coderbyte having the strongest support in the results as a cost-effective option” Perplexity Sonar · budget prompt · first choice
“Coderbyte stands out as one of the best coding assessment platforms due to its affordable entry-level pricing” Grok 4.1 Fast · budget prompt · first choice
“CoderByte offers all-inclusive pricing and is affordable if you're hiring on a budget” Claude Haiku 4.5 · 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 five in this category shown.
“it is often described as "quite pricey" ... Codility has had issues with "test integrity," where questions and answers are not sufficiently hidden from recruiters” GLM 4.7 FlashX · negative prompt · hard negative
“Opaque scoring: Candidates and reviewers criticize edge-case scoring and lack of transparency” MiniMax M2.5 · negative prompt · hard negative
“Why we recommend avoiding HackerRank or Codility (for now)” Gemini 3.5 Flash · paraphrase prompt · hard negative
“Codility offers the best balance of capability, reputation, and price” Kimi K2 · direct prompt · first choice
“Often ranked as the best overall, especially for enterprise use.” Mistral Small · comparative prompt · first choice
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.