# GitLab vs Bitbucket: which do AI models recommend for source control, October 2026

IT AI Recommendation Index, October 2026 Edition, Source control hosting. One of fourteen models named GitLab first on the direct prompt; one named Bitbucket. Page: https://it-ai-index.com/developer/source-control-hosting/gitlab-vs-bitbucket/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| GitLab | 21% | #2 of 10 | 14% | 81 | 14 of 14 |
| Bitbucket | 4% | #3 of 10 | 26% | 76 | 14 of 14 |

## The direct prompt, model by model

- MiniMax M2.5: gitlab first (first choices: GitHub, GitLab) (alternatives: Azure DevOps, Bitbucket)
- Grok 4.20: bitbucket first (first choices: Bitbucket, GitHub) (alternatives: GitLab)
- Claude Haiku 4.5: neither first, one named (first choices: GitHub) (alternatives: Bitbucket, GitLab)
- GPT-5.4 mini: neither first, one named (first choices: GitHub) (alternatives: Azure DevOps, Bitbucket, GitLab)
- Gemini 3.5 Flash: neither first, one named (first choices: GitHub) (alternatives: GitLab)
- Perplexity Sonar: neither first, one named (first choices: GitHub) (alternatives: Bitbucket, GitLab)
- Mistral Small: neither first, one named (first choices: GitHub) (alternatives: Bitbucket, GitLab)
- DeepSeek V4 Flash: neither first, one named (first choices: GitHub) (alternatives: Bitbucket, GitLab)
- Qwen 3.7 Flash: neither first, one named (first choices: GitHub) (alternatives: Bitbucket, GitLab)
- Kimi K2: neither first, one named (first choices: GitHub) (alternatives: GitLab)
- GLM 4.7 FlashX: neither first, one named (first choices: GitHub) (alternatives: Bitbucket, GitLab)
- GPT-6 Luna: neither first, one named (first choices: GitHub) (alternatives: Bitbucket, GitLab)
- Muse Glimmer 30B: neither first, one named (first choices: GitHub) (alternatives: Azure DevOps, Azure Repos, GitLab)
- Llama 4 Maverick: neither named

## What the models said about GitLab

- "GitLab SaaS - not budget-friendly for small, scaling teams" (Llama 4 Maverick, negative prompt, hard negative)
- "GitLab SaaS is also worth caution, since one source describes it as not budget-friendly for small, scaling teams" (Perplexity Sonar, negative prompt, soft negative)
- "GitLab (Self-hosted) | ⚠️ Be cautious - Critical CVEs and configuration risks require expertise" (DeepSeek V4 Flash, negative prompt, soft negative)
- "GitLab Ultimate/Premium | Unmatched "single-pane-of-glass" DevOps platform. Exceptional built-in CI/CD, security scanning, and compliance tracking." (Gemini 3.5 Flash, scale prompt, first choice)
- "GitLab is a popular choice among developers and offers a free plan with unlimited public and private repositories, making it a cost-effective option" (Llama 4 Maverick, budget prompt, first choice)
- "I'd recommend starting with a pilot of GitHub Enterprise Server or GitLab Self-Managed, as both offer the best balance of enterprise features" (GLM 4.7 FlashX, scale prompt, first choice)

## What the models said about Bitbucket

- "*Atlassian ended support for Bitbucket Server in February 2024*" (Muse Glimmer 30B, negative prompt, hard negative)
- "Bitbucket - had major impact incidents and high-severity flaws" (Llama 4 Maverick, negative prompt, hard negative)
- "One-third of Bitbucket incidents had major impact" (GLM 4.7 FlashX, negative prompt, hard negative)
- "If using Jira/Confluence (common in B2B): Bitbucket—seamless integration cuts context-switching; 3x cheaper than competitors" (Grok 4.20, direct prompt, first choice)
- "Top Recommendation: Bitbucket" (GLM 4.7 FlashX, paraphrase prompt, first choice)
- "Best For: Mid-to-large businesses that already run their entire planning, PM, and documentation cycles on Jira and Confluence." (Gemini 3.5 Flash, comparative prompt, alternative)

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. 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.