Codeium (Windsurf)

Rebranded as Windsurf in late 2024, Codeium offers the most generous free tier of any serious AI coding tool: unlimited completions, no daily cap, no credit limit. The product has quietly become the go-to for students, indie developers, and developers at companies whose security policies block Copilot. Windsurf's Cascade feature (agentic multi-file editing) launched in Q1 2025 and competes directly with Cursor Composer. In testing, Cascade handled smaller tasks well but struggled on repos above 50k lines. Pricing: free tier is genuinely useful; Pro at $15/month adds priority access to the fastest models. The hidden gem here is Windsurf's autocomplete latency — at ~80ms median, it's the fastest tool on this list, which matters more than most developers admit.