Question: I need a code editor that can handle multiple programming languages and has advanced features like code navigation and diagnostics.

Zed is a high-performance code editor that offers the power of an IDE but with the snappiness of a lightweight editor. It supports multiple programming languages and includes AI-powered code generation, an integrated terminal, Vim mode, customizable themes and language server support. Zed also has advanced collaboration features and real-time shared workspaces.

Another top contender is GitHub Copilot, an AI-powered developer tool that offers context-aware help during the entire development process. It offers code completion, code suggestions generated from natural language prompts, and chat help for asking questions about codebases. Copilot works with a variety of IDEs and terminals, so it's a good tool for writing code and avoiding security problems.

Codeium is also a strong contender, with support for more than 70 programming languages and integration with top IDEs. It offers advanced code completion, AI-powered search and an AI chat assistant that can generate code, refactor and explain existing code. Codeium is designed for solo developers and teams, with tiered pricing to accommodate different needs.

If you're looking for a more specialized code intelligence platform, Sourcegraph offers tools like Code Search, Batch Changes and Code Insights. It supports multiple programming languages and integrates with popular IDEs, helping you navigate and understand large codebases. Sourcegraph can be run in the cloud or self-hosted, with a focus on security and governance.