Compare AI tools

	Cline A	Replit Agent A	GitHub Copilot B	Flux (Black Forest Labs) A
Tagline	Open-source VS Code agent. Reads + writes + runs.	Replit's AI that builds + deploys full apps on their platform.	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Open weights + strong photorealism. The open-source answer.
Category	Coding	Coding	Coding	Image
Pricing	Free (open source) + your API costs	$10-$25/mo Core/Teams	Free (limited) + $10/mo Pro + $19/mo Business	API + open weights (Schnell is Apache 2.0)
Best for	VS Code users who want agentic coding without changing IDEs.	Teachers, students, prototypers, hackathon builders.	Teams with GitHub already. Devs who don't want to change IDEs.	Developers + power users who want control and privacy.
Strengths	Free extension for VS Code Plan + Act modes Model-agnostic (Claude, GPT, local) Sees terminal output and iterates	Full-stack + DB + auth + deploy in one environment Great for teaching/learning Runs everything in-browser	Great enterprise story Works in your existing IDE Chat + autocomplete	Runs locally on a beefy GPU Very photoreal Best open-weight model
Weaknesses	Can burn tokens fast if not watched Less polished than Cursor	Locked into Replit hosting Less code quality than dedicated IDEs	Less agentic than Cursor/Claude Code Model quality varies	Harder to use than hosted tools Needs infra
Kai's verdict	A-tier. Best free agentic option in VS Code. Use with Claude for best results.	A-tier. Best for teaching a kid to code in 2026.	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	A-tier. S-tier if you self-host. The reason open-source image gen matters.
Link	Open →	Open →	Open →	Open →