Compare AI tools

	Replit Agent A	v0 S	Leonardo.ai A	Gemini A
Tagline	Replit's AI that builds + deploys full apps on their platform.	Vercel's AI-powered UI generator. Prompt to shadcn component.	Gamer + creator image gen with model fine-tuning built in.	Google's answer. Best integrated with Workspace + free for a lot.
Category	Coding	Design	Image	Chatbots
Pricing	$10-$25/mo Core/Teams	Free + $20/mo	Free + $12-$60/mo	Free + $20/mo Advanced (bundled with 2TB Drive)
Best for	Teachers, students, prototypers, hackathon builders.	Frontend devs, PMs prototyping UIs, anyone on Next.js.	Indie game devs, illustrators, anyone training custom style models.	Anyone already on Google, research tasks, summarizing long documents.
Strengths	Full-stack + DB + auth + deploy in one environment Great for teaching/learning Runs everything in-browser	Ships working React + Tailwind code Shadcn/ui native One-click deploy to Vercel	Train your own models on your style/character Great for game art + concept art Generous free tier	Native Google Workspace integration Very long context (1M+) Deep Research feature Free tier is generous
Weaknesses	Locked into Replit hosting Less code quality than dedicated IDEs	Best for shadcn stack Iterating can be fiddly	General output behind Midjourney Can be overwhelming	Writing quality trails Claude Over-refusals on edge content UI is cluttered
Kai's verdict	A-tier. Best for teaching a kid to code in 2026.	S-tier. If you're on Vercel/shadcn, this is cheating.	A-tier for creators training custom looks. B-tier for general use.	A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
Link	Open →	Open →	Open →	Open →