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Compare AI tools

Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
Pick tools (4 selected)
chat
research
coding
image
video
voice
meeting
design
productivity
audio
writing
agents
dev platform
data
marketing
education
Suno
S
GitHub Copilot
B
Lex
A
Luma Dream Machine
A
TaglinePrompt to full song with vocals, instruments, the works.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Google Docs with an AI collaborator baked in.Smooth, cinematic motion. Image-to-video specialist.
Categoryaudiocodingwritingvideo
PricingFree + $10/mo + $30/moFree (limited) + $10/mo Pro + $19/mo BusinessFree + $12/moFree + $10-$500/mo
Best forJingles, intros, demos, sketches, personal use.Teams with GitHub already. Devs who don't want to change IDEs.Essays, long-form drafts, thinking on the page.Photographers animating stills, cinematic b-roll.
Strengths
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Best image-to-video in the category
  • Great camera motion control
  • Ray 2 model produces striking shots
Weaknesses
  • Copyright gray zone
  • Audio quality behind studio
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Prompt fidelity below Runway
  • Queue times on free tier
Kai's verdictS-tier in its category. The first AI music tool I'd actually listen to.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.
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