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Tools · Comparison

Codeium vs GitHub Copilot vs Mails.ai

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

CodeiumGitHub CopilotMails.ai
What it isManage fleets of local and cloud agents from one surface. Plan, delegate, review, and ship without leaving your editor.AI pair programmer that helps you write code faster with intelligent suggestions right in your IDE.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 · FreePaid · $10-$39/moFreemium · $15 - $149/mo
How it billsFreeFlat monthlyFlat monthly
Free tierYesNoYes
Rating4.2 from 2,200 reviews4.6 from 11,200 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
  • Real-time code completion
  • Chat-based assistance
  • Multi-file editing
  • Test generation
  • Code explanation
  • Vulnerability detection
  • PR summaries
  • CLI assistance
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What works
  • Completely free for individuals
  • Wide language support
  • Supports all IDEs
  • Fast completions
  • No code upload
  • Massive productivity boost
  • Multi-language support
  • Excellent IDE integration
  • Learns from your codebase
  • Active development
  • 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
  • Requires subscription
  • Occasional incorrect suggestions
  • Privacy concerns with code
  • Can slow down IDE
  • Variable quality by language
  • 97 other tools in this catalogue claim to do the same job
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