Did this experiment in early Q1 because I was tired of the marketing pages and wanted my own data. Used the same 1,800 word source document (a strategy memo I'd already finished) as input to 5 different AI presentation tools. Generated a deck in each. Spent equal time editing each (about 45 minutes per deck). Then asked 4 colleagues to rank them blindly.
The 5 tools.
Gamma. Pitch. Tome. Beautiful.ai. Decktopus.
Methodology caveat. This is one source document and one editing pass per tool. Different inputs would produce different outputs. The blind ranking from 4 colleagues is not statistically meaningful. Still useful directionally.
Generation speed.
Gamma: 45 seconds for first draft. Fastest.
Beautiful.ai: 90 seconds.
Pitch: 2 minutes (the AI generation is slower in Pitch).
Decktopus: 3 minutes. Felt slow for what it produced.
Tome: about 90 seconds. Comparable to Beautiful.ai.
First draft visual quality (my subjective rating).
Gamma was strongest on layout variety. Each slide had different layout treatment, which kept the deck visually moving.
Pitch was strongest on brand consistency. Within the deck, slides felt visually unified in a way Gamma's didn't quite match.
Beautiful.ai had the cleanest "default professional" feel but the layouts were the most constrained.
Tome had the most experimental visual approach. Some slides looked striking. Others looked confused. High variance.
Decktopus produced the most templated-feeling output. Functional. Forgettable.
Editing experience.
Gamma's editing felt the most modern. Web-first, intuitive, familiar if you've used Notion.
Pitch's editing was the closest to traditional presentation tools. Felt like a faster Keynote.
Beautiful.ai's editing fought me on layouts more than the others. The auto-formatting is a feature when you want it and an obstacle when you don't.
Tome's editing felt experimental. Some surprisingly good moves. Some confusing UX choices.
Decktopus's editing felt like a basic web-form interface. Functional. Not good.
Blind ranking from colleagues (1 = best, 5 = worst).
Gamma: 2.0 average.
Pitch: 2.5 average.
Beautiful.ai: 3.0 average.
Tome: 3.5 average.
Decktopus: 4.0 average.
Note: Gamma and Pitch were within margin of error. The colleagues didn't agree. Two preferred Gamma, two preferred Pitch.
Cost per month (at the time of the test).
Gamma: $20 per editor.
Pitch: $25 per editor.
Beautiful.ai: $40 per editor (highest of the five).
Tome: $20 per editor.
Decktopus: $15 per editor (lowest).
Where I landed.
For my workflow, Gamma stays the default. The combination of speed, layout variety, and editing experience fits my use cases. Pitch is a strong alternative I'd use if brand consistency on a specific project mattered more than speed.
I don't see a strong case for Beautiful.ai unless you want the auto-formatting opinion. The cost is harder to justify when Gamma and Pitch are cheaper and produce comparable quality.
Tome is interesting and I'd watch it. The variance suggests the tool is still finding its identity. Could go either way.
Decktopus didn't earn a spot in my stack. Functional but didn't differentiate from the others on anything meaningful.
What this experiment didn't capture.
Long-term usage. One deck doesn't tell you what 50 decks feel like. Each tool would reveal different strengths and weaknesses at scale.
Multi-user collaboration. I tested as a solo user. Team usage would change the calculus.
Specific use case fit. A deck for a webinar is different from a deck for a board meeting. The tools that win for one might lose for another.
Posting because the marketing pages are useless and most blog comparisons are written by content marketers who didn't actually run the test. This is one operator's run-through. Take it as a data point, not a verdict.