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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
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Image
Meetings
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Productivity
Writing
Data
Marketing
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Claude Agent SDK
S
Perplexity
S
Udio
A
Sora
A
TaglineAnthropic's SDK for building your own agents on Claude.AI search done right. Cited answers, not chat theater.Suno's main rival. Often better on instrumental nuance.OpenAI's video model. Long clips, cinematic quality.
CategoryAgentsResearchAudioVideo
PricingAPI usage + SDK is freeFree + $20/mo ProFree + $10-$30/moIncluded with ChatGPT Plus/Pro
Best forDevelopers building custom agents for their own company/product.Replacing Google for any question where you want a cited answer in seconds.Musicians comparing AI outputs. Anyone who didn't click with Suno.ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • Developer-only
  • You build the UI
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
Kai's verdictS-tier for builders. The right primitives. What Kai is built on under the hood.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Genuinely different vibe from Suno — worth trying both for a month.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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