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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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Coding
Image
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Agents
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Devin
A
Claude Code
S
Genspark
A
HeyGen
S
TaglineCognition Labs' autonomous coding engineer.Anthropic's CLI agent. Opus-powered, operates on your repo directly.AI agent for deep search. Generates Sparkpages — full mini-reports.AI avatar videos. Record once, speak any language.
CategoryAgentsCodingResearchVideo
Pricing$500/moPart of Claude Pro/Max/Team plansFree + $25/mo PlusFree + $24-$65/mo
Best forEngineering teams offloading tickets. Ops/platform work.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Travel planning, shopping comparisons, deep research where you want an artifact back.Course creators, multilingual marketers, anyone scaling video content.
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
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
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. Bet on this one — the Sparkpage format is genuinely new.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
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