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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
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Video
Audio
Research
Coding
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Image
Meetings
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Sora
A
Writesonic
B
Claude
S
Claude Code
S
TaglineOpenAI's video model. Long clips, cinematic quality.SEO-first AI writer. Optimized for ranking content.Anthropic's flagship — best reasoning + longest useful context.Anthropic's CLI agent. Opus-powered, operates on your repo directly.
CategoryVideoMarketingChatbotsCoding
PricingIncluded with ChatGPT Plus/ProFree + $15-$99/moFree + $20/mo Pro + team/enterprisePart of Claude Pro/Max/Team plans
Best forChatGPT subscribers experimenting with cinematic shots.Content marketers churning out SEO articles.Long writing, code, careful thinking, documents over 50 pages.Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • SEO built-in (Surfer integration)
  • Article generator for long-form
  • Chatsonic for research
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
Weaknesses
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Output quality behind Claude for polish
  • SEO automation can produce generic content
  • Image generation is weak
  • No native web search on all tiers
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
Kai's verdictA-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.B-tier. Use Claude + manual SEO thinking. Writesonic is fast but generic.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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