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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
Sora
A
Cursor
S
Suno
S
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.OpenAI's video model. Long clips, cinematic quality.VS Code fork that made AI coding actually work.Prompt to full song with vocals, instruments, the works.
CategoryChatbotsVideoCodingAudio
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Included with ChatGPT Plus/ProFree + $20/mo Pro + $40/mo BusinessFree + $10/mo + $30/mo
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.ChatGPT subscribers experimenting with cinematic shots.Developers. Non-developers who want to ship working code.Jingles, intros, demos, sketches, personal use.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Copyright gray zone
  • Audio quality behind studio
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier in its category. The first AI music tool I'd actually listen to.
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