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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
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
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Data
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Groq
S
Perplexity
S
Claude Agent SDK
S
Fathom
S
TaglineThe fastest AI inference in the world. Crazy low latency.AI search done right. Cited answers, not chat theater.Anthropic's SDK for building your own agents on Claude.Meeting notes, free forever for individuals.
CategoryDev PlatformResearchAgentsMeetings
PricingFree tier + pay-as-you-go APIFree + $20/mo ProAPI usage + SDK is freeFree for individuals + $15-$29/user/mo teams
Best forDevelopers who need sub-100ms LLM responses.Replacing Google for any question where you want a cited answer in seconds.Developers building custom agents for their own company/product.Solo operators, freelancers, small teams on a budget.
Strengths
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
Weaknesses
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Developer-only
  • You build the UI
  • Bot-joining model
  • Team features gated
Kai's verdictS-tier for speed. When latency is the product, start here.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for builders. The right primitives. What Kai is built on under the hood.S-tier for solo + free. The best free option, hands down.
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