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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Claude
S
Claude Code
S
Grok
A
Devin
A
TaglineAnthropic's flagship — best reasoning + longest useful context.Anthropic's CLI agent. Opus-powered, operates on your repo directly.xAI's chatbot. Real-time X/Twitter data + fewer refusals.Cognition Labs' autonomous coding engineer.
CategoryChatbotsCodingChatbotsAgents
PricingFree + $20/mo Pro + team/enterprisePart of Claude Pro/Max/Team plansFree + $30/mo SuperGrok + included with X Premium$500/mo
Best forLong writing, code, careful thinking, documents over 50 pages.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Breaking news, live event tracking, users already on X.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Live access to X posts for real-time events
  • Less restrictive on edgy questions
  • Fast inference on Grok-3 and up
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Image generation is weak
  • No native web search on all tiers
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Writing quality trails Claude/ChatGPT
  • Political bias debates
  • Ecosystem is just X
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictS-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier for real-time. B-tier for everything else. Worth checking when news breaks.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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