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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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Replicate
S
Copy.ai
A
Gemini
A
TaglineRun any open-source AI model with an API call.AI GTM platform. Workflows for sales + marketing ops.Google's answer. Best integrated with Workspace + free for a lot.
CategoryDev PlatformMarketingChatbots
PricingPay per second of computeFree + $49-$249/moFree + $20/mo Advanced (bundled with 2TB Drive)
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).RevOps + marketing ops automating repetitive tasks.Anyone already on Google, research tasks, summarizing long documents.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Workflow builder for GTM automations
  • CRM enrichment + outbound sequences
  • Scales better than ad-hoc prompts
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Overlaps with general chatbots
  • Workflow setup takes time
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier for ops automation. B-tier for simple copy (use Claude).A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
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