Compare AI tools

	NotebookLM S	GitHub Copilot B	OpenAI Voice / Realtime S	Figma AI A
Tagline	Google's research notebook. Turns your docs into a podcast.	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	ChatGPT's voice + the Realtime API for developers.	AI features baked into the design tool you already use.
Category	Research	Coding	Voice	Design
Pricing	Free	Free (limited) + $10/mo Pro + $19/mo Business	Voice included with ChatGPT Plus; Realtime API by usage	Included with Figma plans
Best for	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Teams with GitHub already. Devs who don't want to change IDEs.	Voice chat users, developers building voice agents on OpenAI.	Designers already on Figma.
Strengths	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Great enterprise story Works in your existing IDE Chat + autocomplete	Advanced Voice Mode feels genuinely conversational Realtime API enables true two-way voice apps Built into ChatGPT	First drafts with Make Designs Rename/rearrange layers automatically Natural language asset search
Weaknesses	Google-only Can be slow on large corpora	Less agentic than Cursor/Claude Code Model quality varies	Pricey for production apps Less voice variety than ElevenLabs Platform lock-in	Features vary by plan + region Still rolling out
Kai's verdict	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.	A-tier. No reason not to use it if you're on Figma. Not worth switching for.
Link	Open →	Open →	Open →	Open →