GitLab Duo Code Suggestions vs OpenCode

GitLab Duo Code Suggestions provides code completion and generation in supported editors. It can complete code blocks, help define function logic, generate tests, and suggest common patterns such as regular expressions. Supported editors include Visual Studio Code, GitLab Web IDE, Microsoft Visual Studio 2022, JetBrains IDEs, Neovim, and Eclipse; GitLab lists more than 14 supported languages, including C++, C#, Go, Java, JavaScript, Python, Rust, and TypeScript. The feature is available on the GitLab.com Free tier with GitLab Credits, and self-managed GitLab instances can use it through a secure connection to GitLab.com. GitLab says it does not train generative AI models and that private, non-public customer code stored in GitLab is not training data. Suggestions are scanned to help prevent sensitive information such as API keys or passwords from being shared. GitLab warns that high demand may degrade performance or cause unexpected downtime. GitLab Duo Pro is listed at $19 per user per month.

OpenCode is an open source AI coding agent for working in a terminal, IDE, or desktop app. It provides chat assistance, agent mode, terminal access, and codebase indexing, and supports more than 75 LLM providers as well as local models. The software can load language servers for the selected model and coordinate multiple agents on one project. Editor extensions are listed for Visual Studio Code, Cursor, Zed, Windsurf, and VSCodium; GitHub and GitLab integrations are also available. Users can share session links, while conversations are private by default. OpenCode says it does not store code or context data. The free plan includes the open source agent and free models, or users can connect a model provider. OpenCode Go costs $10 a month and lists usage limits of $12 per 5 hours, $30 per week, and $60 per month. The site recommends WSL for Windows users for performance and full feature compatibility.