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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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Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
DALL-E 3
B
Devin
A
NotebookLM
S
Perplexity
S
TaglineOpenAI's image model. Built into ChatGPT Plus.Cognition Labs' autonomous coding engineer.Google's research notebook. Turns your docs into a podcast.AI search done right. Cited answers, not chat theater.
CategoryImageAgentsResearchResearch
PricingIncluded with ChatGPT Plus $20/mo$500/moFreeFree + $20/mo Pro
Best forChatGPT Plus users who want images without paying extra.Engineering teams offloading tickets. Ops/platform work.Students, researchers, anyone with a stack of PDFs or a topic to learn.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Google-only
  • Can be slow on large corpora
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictB-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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