01 · Best for real PowerPoint output
Brightdeck
Brightdeck is #1 here because it inverts the exact weakness that hurt Tome: instead of a web format that struggles to become PowerPoint, PowerPoint is the native format. Every generated slide is real .pptx — editable text boxes, shapes, charts, and tables — with speaker notes included, and layouts built for business audiences: frameworks, 2x2s, matrices. It is also the only AI that adds slides to an existing PowerPoint deck without breaking the layout, and it works inside ChatGPT and Claude.
Trade-offs, honestly: there's no Tome-style live web canvas — Brightdeck produces files — and native Google Slides output is on the roadmap rather than shipped (the .pptx imports into Google Slides cleanly).
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