Compare AI tools

	Runway S	NotebookLM S	HeyGen S	Ideogram S
Tagline	The pro's AI video tool. Gen-4 is the current bar.	Google's research notebook. Turns your docs into a podcast.	AI avatar videos. Record once, speak any language.	The one that actually gets text in images right.
Category	Video	Research	Video	Image
Pricing	Free + $15-$95/mo	Free	Free + $24-$65/mo	Free + $8/mo + $20/mo + $60/mo
Best for	Marketing video, pitch decks, b-roll, creative shorts.	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Course creators, multilingual marketers, anyone scaling video content.	Anything with text — posters, ads, album covers, slide decks.
Strengths	Most mature video workflow Character consistency via Act-One Gen-4 quality is production-grade	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Clone your face + voice in 2 minutes Instant translation into 40+ languages with lip sync Avatars look less uncanny than competitors	Best text rendering in the game Strong free tier Good for logos, posters, thumbnails
Weaknesses	Expensive at scale Still needs post-editing	Google-only Can be slow on large corpora	Pricey for serious volume Long shots still feel off Ethics — easy to misuse	Aesthetic ceiling below Midjourney Less style variety
Kai's verdict	S-tier. Market leader with reason. Start here for serious video.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.	S-tier for text-in-image. Use this for posters, Midjourney for art.
Link	Open →	Open →	Open →	Open →