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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
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
ChatGPT
S
Runway
S
Ideogram
S
Lex
A
TaglineThe default. Strongest ecosystem + best multimodal breadth.The pro's AI video tool. Gen-4 is the current bar.The one that actually gets text in images right.Google Docs with an AI collaborator baked in.
CategoryChatbotsVideoImageWriting
PricingFree + $20/mo Plus + $200/mo ProFree + $15-$95/moFree + $8/mo + $20/mo + $60/moFree + $12/mo
Best forGeneral use, voice chat, image generation, first-time AI users.Marketing video, pitch decks, b-roll, creative shorts.Anything with text — posters, ads, album covers, slide decks.Essays, long-form drafts, thinking on the page.
Strengths
  • Great voice mode
  • Huge plugin/custom GPT ecosystem
  • Strong image generation (DALL-E built in)
  • Code Interpreter
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
Weaknesses
  • Reasoning quality varies by mode
  • Can be verbose
  • Confabulates on niche facts
  • Expensive at scale
  • Still needs post-editing
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
Kai's verdictS-tier all-rounder. If you want one tool that does everything okay-to-great, this is it.S-tier. Market leader with reason. Start here for serious video.S-tier for text-in-image. Use this for posters, Midjourney for art.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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