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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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S
Aider
A
Flux (Black Forest Labs)
A
Adobe Firefly
A
TaglineRun any open-source AI model with an API call.Terminal-based AI pair programmer. Git-aware, model-flexible.Open weights + strong photorealism. The open-source answer.Commercially safe image gen, deeply integrated with Photoshop.
CategoryDev PlatformCodingImageImage
PricingPay per second of computeFree (open source) + whatever API you useAPI + open weights (Schnell is Apache 2.0)Free + included with Creative Cloud
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Developers who want open-source tooling with full control.Developers + power users who want control and privacy.Anyone in Creative Cloud. Brands that need copyright clarity.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Trained on licensed content — commercially safe
  • Generative Fill in Photoshop is incredible
  • Native to Adobe ecosystem
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Harder to use than hosted tools
  • Needs infra
  • Aesthetic ceiling below Midjourney
  • Tied to Adobe subscription
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.A-tier. S-tier if you self-host. The reason open-source image gen matters.S-tier inside Photoshop (Generative Fill). B-tier standalone.
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