Compare AI tools

	GitHub Copilot B	Elicit S	Runway S	OpenRouter S
Tagline	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	AI research assistant for academic literature.	The pro's AI video tool. Gen-4 is the current bar.	One API, every model. Pay-as-you-go, no subscriptions.
Category	Coding	Research	Video	Dev Platform
Pricing	Free (limited) + $10/mo Pro + $19/mo Business	Free + $12-$42/mo	Free + $15-$95/mo	Pay per token — model-dependent
Best for	Teams with GitHub already. Devs who don't want to change IDEs.	Grad students, researchers, anyone doing literature reviews.	Marketing video, pitch decks, b-roll, creative shorts.	Developers experimenting across models. Apps that want fallback logic.
Strengths	Great enterprise story Works in your existing IDE Chat + autocomplete	Searches 125M+ papers Extracts + synthesizes findings across papers Systematic review workflow	Most mature video workflow Character consistency via Act-One Gen-4 quality is production-grade	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use
Weaknesses	Less agentic than Cursor/Claude Code Model quality varies	Academic-only Can hallucinate citations — verify everything	Expensive at scale Still needs post-editing	Slight markup over direct API Some provider features not exposed
Kai's verdict	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	S-tier for academic research. Nothing else comes close for systematic reviews.	S-tier. Market leader with reason. Start here for serious video.	S-tier for model-shopping. I use this for every prototype before committing.
Link	Open →	Open →	Open →	Open →