I run a small team building an AI presentation tool called Huanjian. Before that, I spent years in product management watching people pitch, present, and fail in meetings. Lately, I've been watching how those same people use AI to build slides. The patterns are surprisingly consistent. Here are the ones that bother me the most.
You treat the AI like the final author
The biggest mistake is hitting "generate" and shipping the first output. I did this myself a few months ago for a board update. The AI wrote a perfectly fine slide about "market tailwinds." It was generic. It could have been written by anyone. My board knows the market. They wanted to know what we were doing differently.
Editing AI output is not optional. I usually trim 40% of the words. AI loves filler phrases like "leverage our synergies" or "drive stakeholder alignment." Kill them. Rewrite every headline until it sounds like a human with an opinion. If you can't do that, don't blame the tool when the audience checks their phones.
You starve it of context
I typed "presentation on machine learning" into a tool once. It gave me the history of AI from 1950. That is technically correct and completely useless. I needed a pitch for a logistics company. The audience was warehouse owners. The problem was labor shortages. The AI had no way of knowing that because I didn't tell it.
Now I write prompts like a briefing. "Audience is 50-year-old warehouse owners. They are skeptical of tech. Problem is high turnover. Solution is our routing software. Tone should be direct, not hype." The output is not perfect, but it's 80% closer to usable. The machine needs constraints. Give it as many as possible.
You ignore the visual thread
AI loves variety. It will generate a bold infographic on slide three, a dense table on slide four, and a quote with a giant photo on slide five. Individually, each slide looks fine. Together, it's a mess. Your brain gets tired switching between visual languages every 30 seconds.
What worked for me is enforcing a strict template before generating content. At Huanjian, we built in a master slide system specifically for this reason. You need one font, one accent color, one layout structure. Treat the AI like a junior designer who needs a style guide. If you don't give it rules, it will break every rule.