# Coderbyte vs TestGorilla: which do AI models recommend for technical hiring assessm, September 2026

HR AI Recommendation Index, September 2026 Edition, Technical hiring assessments. Zero of twelve models named Coderbyte first on the direct prompt; zero named TestGorilla. Page: https://hr-ai-index.com/talent/technical-hiring-assessments/coderbyte-vs-testgorilla/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Coderbyte | 13% | #3 of 6 | 8% | 13 | 11 of 12 |
| TestGorilla | 5% | #5 of 6 | 16% | 31 | 12 of 12 |

## The direct prompt, model by model

- Gemini 3.5 Flash: neither first, one named (first choices: CoderPad) (alternatives: CodeSignal, HackerEarth, TestGorilla)
- Perplexity Sonar: neither first, one named (first choices: HackerRank) (alternatives: CodeSignal, CoderPad, Coderbyte, Goodfit)
- Grok 4.1 Fast: neither first, one named (first choices: HackerRank) (alternatives: CodeSignal, Coderbyte)
- Mistral Small: neither first, one named (first choices: HackerRank) (alternatives: Augment Code, Coderbyte)
- DeepSeek V4 Flash: neither first, one named (first choices: CodeSignal) (alternatives: Codility, HackerRank, TestGorilla)
- Llama 4 Maverick: neither first, one named (alternatives: CodeSignal, CoderPad, Coderbyte, Goodfit, HackerRank)
- Kimi K2: neither first, one named (first choices: Codility) (alternatives: CodeSignal, Coderbyte, HackerRank, TestGorilla)
- MiniMax M2.5: neither first, one named (first choices: CodeSignal) (alternatives: Augment Code, HackerRank, TestGorilla)
- Claude Haiku 4.5: neither named
- GPT-5.4 mini: neither named (first choices: HackerRank) (alternatives: CodeSignal, CoderPad, Codility)
- Qwen 3.7 Flash: neither named (first choices: HackerRank) (alternatives: CodeSignal, TestDome, Vervoe)
- GLM 4.7 FlashX: neither named (first choices: HackerRank) (alternatives: CodeSignal)

## What the models said about Coderbyte

- "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 TestGorilla

- "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)

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. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.