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
Cursor S | Windsurf A | Sudowrite S | Perplexity S | |
|---|---|---|---|---|
| Tagline | VS Code fork that made AI coding actually work. | Codeium's agentic IDE. Cascade agent + strong free tier. | AI writing tool built specifically for fiction writers. | AI search done right. Cited answers, not chat theater. |
| Category | coding | coding | writing | research |
| Pricing | Free + $20/mo Pro + $40/mo Business | Free + $15/mo Pro | $19-$59/mo | Free + $20/mo Pro |
| Best for | Developers. Non-developers who want to ship working code. | Developers who want Cursor-like power for less money. | Novelists, screenwriters, fiction short-form writers. | Replacing Google for any question where you want a cited answer in seconds. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| Kai's verdict | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | A-tier. Close second to Cursor. If $5/mo matters, start here. | S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. |
| Link | Open → | Open → | Open → | Open → |