Compare AI tools

	Cursor S	Claude Agent SDK S	Groq S	NotebookLM S
Tagline	VS Code fork that made AI coding actually work.	Anthropic's SDK for building your own agents on Claude.	The fastest AI inference in the world. Crazy low latency.	Google's research notebook. Turns your docs into a podcast.
Category	Coding	Agents	Dev Platform	Research
Pricing	Free + $20/mo Pro + $40/mo Business	API usage + SDK is free	Free tier + pay-as-you-go API	Free
Best for	Developers. Non-developers who want to ship working code.	Developers building custom agents for their own company/product.	Developers who need sub-100ms LLM responses.	Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths	Tab completion feels like mind-reading Composer for multi-file edits Runs Claude, GPT, Gemini — you pick	Production-grade agent primitives Built on Claude (best reasoning) Full control — build exactly what you need	500+ tokens/sec on Llama/Mixtral — feels instant Custom LPU hardware Great free tier	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying
Weaknesses	Can feel overwhelming for non-coders Expensive at scale	Developer-only You build the UI	Open-weight models only (no Claude/GPT) Less flexibility on custom configs	Google-only Can be slow on large corpora
Kai's verdict	S-tier for coding. If you write code of any kind, this pays back the $20 in a day.	S-tier for builders. The right primitives. What Kai is built on under the hood.	S-tier for speed. When latency is the product, start here.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
Link	Open →	Open →	Open →	Open →