Compare AI tools

	GitHub Copilot B	Replit Agent A	Replicate S	Bolt.new (StackBlitz) A
Tagline	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Replit's AI that builds + deploys full apps on their platform.	Run any open-source AI model with an API call.	Prompt to deployed full-stack app in the browser.
Category	coding	coding	dev platform	coding
Pricing	Free (limited) + $10/mo Pro + $19/mo Business	$10-$25/mo Core/Teams	Pay per second of compute	Free + $20-$200/mo
Best for	Teams with GitHub already. Devs who don't want to change IDEs.	Teachers, students, prototypers, hackathon builders.	Developers using open-source models (Flux, SDXL, Whisper, etc).	PMs, founders, non-devs shipping MVPs.
Strengths	Great enterprise story Works in your existing IDE Chat + autocomplete	Full-stack + DB + auth + deploy in one environment Great for teaching/learning Runs everything in-browser	Tens of thousands of models (image, video, audio, LLMs) One-line API for any model Cog framework for custom model deploy	Full-stack generation + live preview Deploy to Netlify in one click Works in-browser — no install
Weaknesses	Less agentic than Cursor/Claude Code Model quality varies	Locked into Replit hosting Less code quality than dedicated IDEs	Cold starts on less-popular models Pricing gets real at scale	Quality ceiling for complex apps Can get into loops for non-trivial bugs
Kai's verdict	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	A-tier. Best for teaching a kid to code in 2026.	S-tier for open-source model APIs. The default in this space.	A-tier. Best for fast prototypes. Competitive with Lovable — try both.
Link	Open →	Open →	Open →	Open →