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Claude Code

CLI Coding Tools
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Official Anthropic CLI for Claude Sonnet. Extended thinking modes for complex reasoning.

Supported Models

Claude Sonnet 4Claude Opus 4.5Claude Haiku 4.5

Key Features

  • Extended thinking
  • Think/Megathink/Ultrathink
  • Official Anthropic

Pros

  • Official Anthropic tool
  • Extended thinking modes
  • Best Claude access

Cons

  • Expensive paid tiers
  • Limited free tier
  • Weekly limits

Best Use Cases

Complex reasoningAnthropic ecosystemResearch