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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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Dev Platform
Audio
Research
Agents
Coding
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Image
Video
Voice
Meetings
Design
Productivity
Writing
Data
Marketing
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DALL-E 3
B
Manus
S
Claude Agent SDK
S
Perplexity
S
TaglineOpenAI's image model. Built into ChatGPT Plus.Autonomous AI agent that actually finishes tasks.Anthropic's SDK for building your own agents on Claude.AI search done right. Cited answers, not chat theater.
CategoryImageAgentsAgentsResearch
PricingIncluded with ChatGPT Plus $20/moFree tier + $39-$199/moAPI usage + SDK is freeFree + $20/mo Pro
Best forChatGPT Plus users who want images without paying extra.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Developers building custom agents for their own company/product.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Developer-only
  • You build the UI
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictB-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier in the agent category. The first one I'd give to a non-technical friend.S-tier for builders. The right primitives. What Kai is built on under the hood.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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