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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
Writing
Data
Marketing
Education
Gemini
A
Fireflies
A
Claude Agent SDK
S
Replicate
S
TaglineGoogle's answer. Best integrated with Workspace + free for a lot.Sales-focused meeting AI with CRM integration.Anthropic's SDK for building your own agents on Claude.Run any open-source AI model with an API call.
CategoryChatbotsMeetingsAgentsDev Platform
PricingFree + $20/mo Advanced (bundled with 2TB Drive)Free + $10-$19/user/moAPI usage + SDK is freePay per second of compute
Best forAnyone already on Google, research tasks, summarizing long documents.Sales teams, customer success, anyone running many discovery calls.Developers building custom agents for their own company/product.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Good CRM integrations (Salesforce, HubSpot)
  • Talk-time + sentiment analytics
  • Call scoring
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Bot-joins (intrusive)
  • Gets expensive at team scale
  • Developer-only
  • You build the UI
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictA-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier for sales teams. B-tier for solo users.S-tier for builders. The right primitives. What Kai is built on under the hood.S-tier for open-source model APIs. The default in this space.
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