I’ve been trying to find ways to practically use artificial intelligence (AI) outside of an office or business setting. A few posts ago, I suggested that my readers could use AI to make unique gifts and personalized meals. Now, I’ve heard it bandied about that these large language models (LLMs) could help us get fit, and I decided to put that claim to the test.
I could stand to lose a few pounds and my lifestyle is quite sedentary, so this challenge isn’t just for the sake of writing a new blog post! I went to 4 LLMs and asked them to create an indoor workout that is easy on the knees of a 40-something female who needs to lose 20 pounds, lives in a small upstairs apartment, and requires no equipment (to keep expenses at $0). I also asked them to ask me any necessary questions to create my personalized, 3-day-a-week routine.
Here’s how it went:
1. OpenAI ChatGPT (Free Version)
ChatGPT started by asking me if I had any specific goals, like flexibility, endurance, or muscle gain, and if there were exercises I liked or disliked. I told it that I wanted to build muscle and hated burpees (because, seriously, who enjoys burpees?). Based on that, it gave me a detailed written routine. Each day focused on a different body part with five exercises, complete with sets and reps. I was impressed by how easily it created a plan that felt tailored to me.
2. Microsoft Copilot (Free Version, part of Bing)
Copilot didn’t ask any follow-up questions and gave me a routine that didn’t quite fit my needs. I don’t want to bother my downstairs neighbors with noise, yet Copilot suggested several exercises involving jumping. How do you even jump quietly? It also gave no info on sets and reps until I specifically asked. While it did eventually provide the answers, I wasn’t thrilled with the experience.
3. Google Gemini (Free Version)
Google’s Gemini model asked me four key questions: my current fitness level, any injuries or health conditions, workout preferences, and time constraints. Based on my answers, Gemini provided a simple routine of five exercises with instructions to do 10–15 reps per exercise. It forgot to mention how many sets, but I easily got that info after asking. This one felt practical and beginner-friendly, which I appreciated.
4. Perplexity (Free Version)
Perplexity asked the most follow-up questions—ten to be exact—covering everything from preferred workout times to diet. After answering, I received a detailed leg-focused workout with two YouTube videos. While the guidance was complete, I wasn’t thrilled that it ignored the rest of my body. It seems Perplexity took my leg-day suggestion a little too literally.
The Results?
I decided to follow Google Gemini’s plan because it was simple, equipment-free, and beginner-friendly. After six weeks of sticking to the routine, tweaking one exercise to increase the challenge, and upping my reps and sets as I got stronger, I feel better and more toned. I didn’t lose any weight, but I do feel stronger than I did before.
While I don’t think AI will turn you into a fitness model overnight (unless you have one of those fancy fitness mirrors), I think AI could be a good, budget-friendly starting point if you’re looking to begin your fitness journey.
What’s next? I might try another AI routine and let you know how it goes! Stay tuned for more fitness updates!

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