NotebookLM
AI Tool Digest June 2026 — NotebookLM Agentic Research, Claude Code Sub-Agents & Gemini 3.5 Flash for Education
June 2026 brought another wave of transformative updates across the AI tool landscape. NotebookLM evolved from a manual source management tool into an agentic research workstation that finds sources on your behalf. Claude Code unlocked hierarchical sub-agent spawning for parallel autonomous coding. And Gemini 3.5 Flash rolled out powerful education-focused updates to reshape how teachers work. Here is what actually matters.
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