Compare AI tools

	Cline A	GitHub Copilot B	OpenRouter S	Flux (Black Forest Labs) A
Tagline	Open-source VS Code agent. Reads + writes + runs.	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	One API, every model. Pay-as-you-go, no subscriptions.	Open weights + strong photorealism. The open-source answer.
Category	Coding	Coding	Dev Platform	Image
Pricing	Free (open source) + your API costs	Free (limited) + $10/mo Pro + $19/mo Business	Pay per token — model-dependent	API + open weights (Schnell is Apache 2.0)
Best for	VS Code users who want agentic coding without changing IDEs.	Teams with GitHub already. Devs who don't want to change IDEs.	Developers experimenting across models. Apps that want fallback logic.	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	Great enterprise story Works in your existing IDE Chat + autocomplete	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use	Runs locally on a beefy GPU Very photoreal Best open-weight model
Weaknesses	Can burn tokens fast if not watched Less polished than Cursor	Less agentic than Cursor/Claude Code Model quality varies	Slight markup over direct API Some provider features not exposed	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.	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	S-tier for model-shopping. I use this for every prototype before committing.	A-tier. S-tier if you self-host. The reason open-source image gen matters.
Link	Open →	Open →	Open →	Open →