Windsurf

Windsurf is an AI-native IDE from Codeium that evolved from their popular code completion extension into a full development environment. Built on VS Code, it features Cascade—an AI agent that maintains deep context of your entire codebase and can autonomously execute complex, multi-file tasks. Unlike simple autocomplete tools, Cascade understands project architecture and can make coordinated changes across files. Features include Supercomplete (advanced autocomplete), Inline AI for targeted edits, Write Mode for autonomous coding, and Chat Mode for conversations. Supports GPT-4o, Claude 3.5 Sonnet, DeepSeek-V3, Gemini 2.0 Flash, and proprietary SWE models. Recognized as a Leader in the 2025 Gartner Magic Quadrant for AI Code Assistants. Privacy-focused with optional zero data retention.