Verdict
What is Gamma?
Gamma generates presentations, documents and simple web pages from a prompt, an outline or an imported file.
What it does well
The first draft. Turning a rough set of notes into a structured deck you can then edit, rather than fighting a blank slide.
Who should use it
Consultants and business owners who present regularly and do not have design support.
Who should not use it
High-stakes pitches where the deck is the product. Use Gamma to draft, then have it properly designed.
How we tested
Same source documents
Same job, every tool
One prompt per job
No re-rolls
Human review
Two editors, blind
Scored against the rubric
Published Aug 2026
Where it fits
Good for
- Fast internal decks and first drafts
- Turning a blog post or report into slides
Not for
- Polished client-facing presentations without a restyle pass
Pros
- Very fast first draft from an outline
- Handles long documents reasonably well
- Export to PowerPoint and PDF
Cons
- Generic house style needs restyling for client work
- Less control than a dedicated design tool