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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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S
Gemini
A
Stable Audio
A
Pika
A
TaglineRun any open-source AI model with an API call.Google's answer. Best integrated with Workspace + free for a lot.Stability AI's open audio model. Loops + SFX + background.The playful, accessible AI video tool.
CategoryDev PlatformChatbotsAudioVideo
PricingPay per second of computeFree + $20/mo Advanced (bundled with 2TB Drive)Free + $12/mo Pro + enterpriseFree + $8-$58/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Anyone already on Google, research tasks, summarizing long documents.Game developers, podcasters needing SFX, video creators needing background music.Social media creators, beginners, anyone wanting quick fun clips.
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
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Ingredients feature — combine people, objects, scenes
  • Lip sync + sound effects
  • Fun, approachable UX
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Not for full songs with vocals
  • Shorter generation limits
  • Lower fidelity than Runway/Kling
  • Still rough on complex scenes
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 its niche. Different use case than Suno — SFX and loops, not songs.A-tier for social/casual. B-tier for serious work. Good entry point.
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