Compare AI tools

	v0 S	Cline A	Claude Code S	Flux (Black Forest Labs) A
Tagline	Vercel's AI-powered UI generator. Prompt to shadcn component.	Open-source VS Code agent. Reads + writes + runs.	Anthropic's CLI agent. Opus-powered, operates on your repo directly.	Open weights + strong photorealism. The open-source answer.
Category	Design	Coding	Coding	Image
Pricing	Free + $20/mo	Free (open source) + your API costs	Part of Claude Pro/Max/Team plans	API + open weights (Schnell is Apache 2.0)
Best for	Frontend devs, PMs prototyping UIs, anyone on Next.js.	VS Code users who want agentic coding without changing IDEs.	Developers who want an agent, not autocomplete. Large refactors, tests, docs.	Developers + power users who want control and privacy.
Strengths	Ships working React + Tailwind code Shadcn/ui native One-click deploy to Vercel	Free extension for VS Code Plan + Act modes Model-agnostic (Claude, GPT, local) Sees terminal output and iterates	Runs locally, edits your actual files Strong on large codebases with 1M context Great at multi-step tasks	Runs locally on a beefy GPU Very photoreal Best open-weight model
Weaknesses	Best for shadcn stack Iterating can be fiddly	Can burn tokens fast if not watched Less polished than Cursor	Terminal-based — learning curve Can't be used without Claude subscription	Harder to use than hosted tools Needs infra
Kai's verdict	S-tier. If you're on Vercel/shadcn, this is cheating.	A-tier. Best free agentic option in VS Code. Use with Claude for best results.	S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.	A-tier. S-tier if you self-host. The reason open-source image gen matters.
Link	Open →	Open →	Open →	Open →