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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
Agents
Voice
Video
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Research
Coding
Chatbots
Image
Meetings
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Data
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DALL-E 3
B
Manus
S
Groq
S
Devin
A
TaglineOpenAI's image model. Built into ChatGPT Plus.Autonomous AI agent that actually finishes tasks.The fastest AI inference in the world. Crazy low latency.Cognition Labs' autonomous coding engineer.
CategoryImageAgentsDev PlatformAgents
PricingIncluded with ChatGPT Plus $20/moFree tier + $39-$199/moFree tier + pay-as-you-go API$500/mo
Best forChatGPT Plus users who want images without paying extra.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Developers who need sub-100ms LLM responses.Engineering teams offloading tickets. Ops/platform work.
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
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
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
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
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 speed. When latency is the product, start here.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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