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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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DeepSeek
S
Ideogram
S
Sora
A
Claude Agent SDK
S
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.The one that actually gets text in images right.OpenAI's video model. Long clips, cinematic quality.Anthropic's SDK for building your own agents on Claude.
CategoryChatbotsImageVideoAgents
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Free + $8/mo + $20/mo + $60/moIncluded with ChatGPT Plus/ProAPI usage + SDK is free
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Anything with text — posters, ads, album covers, slide decks.ChatGPT subscribers experimenting with cinematic shots.Developers building custom agents for their own company/product.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Developer-only
  • You build the UI
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.S-tier for text-in-image. Use this for posters, Midjourney for art.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for builders. The right primitives. What Kai is built on under the hood.
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