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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
Audio
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Chatbots
Image
Meetings
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Productivity
Writing
Data
Marketing
Education
Groq
S
DALL-E 3
B
Lex
A
Devin
A
TaglineThe fastest AI inference in the world. Crazy low latency.OpenAI's image model. Built into ChatGPT Plus.Google Docs with an AI collaborator baked in.Cognition Labs' autonomous coding engineer.
CategoryDev PlatformImageWritingAgents
PricingFree tier + pay-as-you-go APIIncluded with ChatGPT Plus $20/moFree + $12/mo$500/mo
Best forDevelopers who need sub-100ms LLM responses.ChatGPT Plus users who want images without paying extra.Essays, long-form drafts, thinking on the page.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictS-tier for speed. When latency is the product, start here.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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