Which brand does AI prefer? We tested both across 3 leading AI models.
In our AI blind test of GitHub vs about.gitlab.com, we tested both brands across 3 leading AI models: GPT-5 Mini, Gemini 2.5 Flash, and Claude 3.5 Haiku. GitHub scored 100% while about.gitlab.com scored 0%. GitHub takes the lead with 100% AI preference. The biggest gap is in trust — GitHub scores 9 vs about.gitlab.com's 7.8.
Last tested: February 23, 2026
Based on 3 AI models and 5 evaluation angles
GitHub
100%
about.gitlab.com
0%
100%
GitHub
0%
about.gitlab.com
“GitHub takes the lead with 100% AI preference. The biggest gap is in trust — GitHub scores 9 vs about.gitlab.com's 7.8.”
GitHub's value proposition is incredibly clear and well-supported by specific features and customer examples. GitLab, while comprehensive, is less dir…
GitHub delivers a significantly stronger impression due to its well-structured content, clear focus on core features, and compelling visual narrative.…
Company A (GitHub) presents massive social proof with well-known client logos, specific statistics on benefits, and customer stories. Their profession…
The AI Verdict
GitHub takes the lead with 100% AI preference. The biggest gap is in trust — GitHub scores 9 vs about.gitlab.com's 7.8.
How each website scores across key dimensions (1-10)
How each AI model independently evaluated the two websites
“Based on the provided site content, GitHub presents a clearer, more polished value proposition focused on collaboration plus a well-known AI offering (Copilot) and explicit feature links (Actions, Codespaces, Security) backed by strong credibility signals and customer stories. GitLab also communicates a compelling end-to-end DevSecOps and AI-orchestration message for enterprises, but GitHub’s messaging and broad adoption come across as more immediately accessible and trustworthy to a general audience.”
“GitHub's value proposition is incredibly clear and well-supported by specific features and customer examples. GitLab, while comprehensive, is less direct in its initial messaging and feature presentation, making it slightly harder to grasp its full depth without more investigation.”
“No successful evaluations from this model.”
This free test used 3 models. The full GEO Audit gives you what agencies charge $500+ for, analyzing GitHub across 11 AI models and 4 dimensions:
The same analysis agencies charge $250 to $1,500 for
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