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Tools · Comparison

Codeium vs Cursor vs Mails.ai

All three are code assistant tools. Here is what separates them.

CodeiumCursorMails.ai
What it isManage fleets of local and cloud agents from one surface. Plan, delegate, review, and ship without leaving your editor.AI-first code editor built for speed with intelligent auto-completion and codebase understanding.Self-serve AI email API + MCP for agents. Per-agent addresses, per-agent reputation, native prompt-injection scanning on every inbound.
CategoryCode AssistantCode AssistantCode Assistant
PricingFree · FreeFreemium · $20/moFreemium · $15 - $149/mo
How it billsFreeFlat monthlyFlat monthly
Free tierYesYesYes
Rating4.2 from 2,200 reviews4.8 from 4,500 reviewsNot yet rated
Features
  • Free code completion
  • 70+ language support
  • All major IDE support
  • AI chat
  • Code search
  • In-line suggestions
  • Custom commands
  • Repository context
  • AI-native editor
  • Codebase understanding
  • Multi-file editing (Composer)
  • Inline generation (Cmd+K)
  • Multiple AI models
  • Tab completion
  • Bug detection
  • Natural language editing
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What works
  • Completely free for individuals
  • Wide language support
  • Supports all IDEs
  • Fast completions
  • No code upload
  • Best AI code editor
  • Understands full codebase
  • VS Code compatibility
  • Multiple model support
  • Incredibly fast
  • Has a free tier, so it can be tried before paying
  • Publishes its price openly — $15 - $149/mo
  • Sits in Code Assistant, one of the better-covered categories here — easy to compare
What does not
  • Less capable than Copilot
  • Occasional irrelevant suggestions
  • Rebranding confusion
  • Limited enterprise features
  • Subscription required for full features
  • Can be resource-intensive
  • Newer with some bugs
  • Limited free completions
  • 97 other tools in this catalogue claim to do the same job
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