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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
Gemini
A
Pika
A
Claude
S
TaglineRun any open-source AI model with an API call.Google's answer. Best integrated with Workspace + free for a lot.The playful, accessible AI video tool.Anthropic's flagship — best reasoning + longest useful context.
CategoryDev PlatformChatbotsVideoChatbots
PricingPay per second of computeFree + $20/mo Advanced (bundled with 2TB Drive)Free + $8-$58/moFree + $20/mo Pro + team/enterprise
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Anyone already on Google, research tasks, summarizing long documents.Social media creators, beginners, anyone wanting quick fun clips.Long writing, code, careful thinking, documents over 50 pages.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Ingredients feature — combine people, objects, scenes
  • Lip sync + sound effects
  • Fun, approachable UX
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Lower fidelity than Runway/Kling
  • Still rough on complex scenes
  • Image generation is weak
  • No native web search on all tiers
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier for social/casual. B-tier for serious work. Good entry point.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.
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