Research / NotebookLM
Upload your sources and interrogate them; audio overviews are a bonus.
My score 87 out of 100 Price Free; higher limits with Google plans From Asia-Pacific Available in many APAC countries. Affiliate program Unverified Last checked 15 October 2026 Go to notebooklm.google.com
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If NotebookLM isn't right
Fast cited answers; the default research starting point.
Free tier; Pro $20/mo
Makes most sense if your company runs on Google Workspace. Deep Research is the standout.
Free tier; paid via Google AI plans
The cheapest strong reasoning model most teams can actually put in production. Chat is free; the API undercuts US labs hard if your workload can sit in off-peak hours.
Free chat app; API billed per token (Flash and V4-Pro, peak/off-peak rates)
Literature review and paper extraction for evidence-heavy work.
Free tier; paid plans available
NotebookLM