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)
Coding
Image
Productivity
Writing
Marketing
Perplexity S | Aider A | ChatGPT Operator B | Gamma A | |
|---|---|---|---|---|
| Tagline | AI search done right. Cited answers, not chat theater. | Terminal-based AI pair programmer. Git-aware, model-flexible. | OpenAI's browser agent. Clicks and types on websites for you. | AI slide decks that don't look AI-generated. |
| Category | Research | Coding | Agents | Productivity |
| Pricing | Free + $20/mo Pro | Free (open source) + whatever API you use | Included with ChatGPT Pro $200/mo | Free + $10-$20/mo |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Developers who want open-source tooling with full control. | Power users willing to pay $200/mo for a browser bot. | Pitch decks, proposals, internal presentations — fast. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| Kai's verdict | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | A-tier. The right answer if you want open-source + terminal-native + model-agnostic. | B-tier. Still early. Manus is more flexible for less money. | A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes. |
| Link | Open → | Open → | Open → | Open → |