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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
ChatGPT Operator
B
Manus
S
Aider
A
TaglineOpen weights + strong photorealism. The open-source answer.OpenAI's browser agent. Clicks and types on websites for you.Autonomous AI agent that actually finishes tasks.Terminal-based AI pair programmer. Git-aware, model-flexible.
CategoryImageAgentsAgentsCoding
PricingAPI + open weights (Schnell is Apache 2.0)Included with ChatGPT Pro $200/moFree tier + $39-$199/moFree (open source) + whatever API you use
Best forDevelopers + power users who want control and privacy.Power users willing to pay $200/mo for a browser bot.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Developers who want open-source tooling with full control.
Strengths
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
Weaknesses
  • Harder to use than hosted tools
  • Needs infra
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
Kai's verdictA-tier. S-tier if you self-host. The reason open-source image gen matters.B-tier. Still early. Manus is more flexible for less money.S-tier in the agent category. The first one I'd give to a non-technical friend.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.
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