TestGorilla vs Codility
Zero of twelve models named TestGorilla first on the direct prompt; one named Codility. Both were named by all twelve models and TestGorilla carries 31 labels and Codility 44, so the shares are not directly comparable.
Named in four 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
TestGorillaFirst choices, of twelve modelsCodility
Across every category in the September 2026 Edition, TestGorilla and Codility were named in the same answer 100 times, of the 238 answers naming TestGorilla and the 186 naming Codility. In those answers Codility took the first choice nine times and TestGorilla twenty-five.
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 | | | | | |
TestGorilla Codility first choice named as an alternative argued againstblank: not namedEach cell is one answer, TestGorilla on the left and Codility on the right.The direct prompt
Codility first, TestGorilla an alternative
1 of 12 modelsTestGorilla was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
4 of 12 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
7 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
TestGorilla21%#2 of 7Codility0%#7 of 7TestGorilla5%#5 of 6Codility5%#6 of 6Codility19%#2 of 6TestGorilla0%#6 of 6What the models said about TestGorilla
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.
“Billing issues: Multiple reviews mention unethical business practices, with charges continuing after cancellation” MiniMax M2.5 · negative prompt · hard negative
“It has a reputation for being buggy and confusing... making it a poor measure of senior engineering ability” DeepSeek V4 Flash · negative prompt · hard negative
“Frequently called one of the "worst online assessment tools" due to poor usability, confusing interfaces” Grok 4.1 Fast · negative prompt · hard negative
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.