Stored only in this browser and sent only to api.anthropic.com.
Add a Gemini key to also find links by meaning.
.srt, .vtt or plain text (two-engine merged transcripts too) become earlier lectures. Kept in this browser and used for keyword links only: never sent to Claude or Gemini (no Explain, Quiz or meaning links for them). A Live mic lecture can be saved when you pause.
Need keys? Anthropic Console · Google AI Studio