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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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Devin
A
Claude Code
S
Grok
A
Genspark
A
TaglineCognition Labs' autonomous coding engineer.Anthropic's CLI agent. Opus-powered, operates on your repo directly.xAI's chatbot. Real-time X/Twitter data + fewer refusals.AI agent for deep search. Generates Sparkpages — full mini-reports.
CategoryAgentsCodingChatbotsResearch
Pricing$500/moPart of Claude Pro/Max/Team plansFree + $30/mo SuperGrok + included with X PremiumFree + $25/mo Plus
Best forEngineering teams offloading tickets. Ops/platform work.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Breaking news, live event tracking, users already on X.Travel planning, shopping comparisons, deep research where you want an artifact back.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • 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
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Writing quality trails Claude/ChatGPT
  • Political bias debates
  • Ecosystem is just X
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.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. Bet on this one — the Sparkpage format is genuinely new.
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