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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
GitHub Copilot
B
Luma Dream Machine
A
TaglineOpen weights + strong photorealism. The open-source answer.Cognition Labs' autonomous coding engineer.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Smooth, cinematic motion. Image-to-video specialist.
Categoryimageagentscodingvideo
PricingAPI + open weights (Schnell is Apache 2.0)$500/moFree (limited) + $10/mo Pro + $19/mo BusinessFree + $10-$500/mo
Best forDevelopers + power users who want control and privacy.Engineering teams offloading tickets. Ops/platform work.Teams with GitHub already. Devs who don't want to change IDEs.Photographers animating stills, cinematic b-roll.
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
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Best image-to-video in the category
  • Great camera motion control
  • Ray 2 model produces striking shots
Weaknesses
  • Harder to use than hosted tools
  • Needs infra
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Prompt fidelity below Runway
  • Queue times on free tier
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.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.
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