Best Ide AI Tools

Codeium (Windsurf)

Code & Development

★★★★☆

AI-powered IDE with Cascade agent, Codemaps codebase understanding, and SWE-1.5 proprietary model. 13× faster inference than Sonnet 4.5. Free tier with unlimited autocomplete.

Cursor

Code & Development

★★★★★

AI-first code editor built on VS Code. Predictive tab completion, multi-file agentic refactoring, and parallel background agents. The gold standard for AI-native IDE integration.

Replit AI

Code & Development

★★★★☆

All-in-one cloud IDE with AI Agent 4 for autonomous app generation. 50+ languages, built-in hosting, database, and auth. SOC 2 Type II certified.