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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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Flux (Black Forest Labs)
A
Devin
A
Claude Code
S
TaglineOpen weights + strong photorealism. The open-source answer.Cognition Labs' autonomous coding engineer.Anthropic's CLI agent. Opus-powered, operates on your repo directly.
Categoryimageagentscoding
PricingAPI + open weights (Schnell is Apache 2.0)$500/moPart of Claude Pro/Max/Team plans
Best forDevelopers + power users who want control and privacy.Engineering teams offloading tickets. Ops/platform work.Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • 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
Weaknesses
  • Harder to use than hosted tools
  • Needs infra
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
Kai's verdictA-tier. S-tier if you self-host. The reason open-source image gen matters.A-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.
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