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
Replit Agent A | Lex A | GitHub Copilot B | Elicit S | |
|---|---|---|---|---|
| Tagline | Replit's AI that builds + deploys full apps on their platform. | Google Docs with an AI collaborator baked in. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | AI research assistant for academic literature. |
| Category | coding | writing | coding | research |
| Pricing | $10-$25/mo Core/Teams | Free + $12/mo | Free (limited) + $10/mo Pro + $19/mo Business | Free + $12-$42/mo |
| Best for | Teachers, students, prototypers, hackathon builders. | Essays, long-form drafts, thinking on the page. | Teams with GitHub already. Devs who don't want to change IDEs. | Grad students, researchers, anyone doing literature reviews. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| Kai's verdict | A-tier. Best for teaching a kid to code in 2026. | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | S-tier for academic research. Nothing else comes close for systematic reviews. |
| Link | Open → | Open → | Open → | Open → |