What you’ll be able to do

By the end of this you’ll have a workout plan built around your actual week, not some generic one someone else wrote for a different body and a different life. Your days, your kit, your starting point. You’ll also know how to check it isn’t nonsense before you go anywhere near a barbell.

That’s it, really. No magic. Just a plan that fits, and a way to sanity-check it.

Before you start

You don’t need anything fancy here, but you do need to know a few things about yourself before you open the AI up and start typing.

Think about your goal, in plain terms. Not “get fit” (too vague, the AI will just guess), but something like “build muscle”, “lose a bit of weight”, “run a 5k without dying”, or “just move more because I sit at a desk all day”. Any of these work.

Then, how many days a week can you realistically train? Be honest. If you say five and actually manage two, the plan’s useless. Three is a good number for most beginners.

What equipment do you actually have? Full gym, home dumbbells, resistance bands, or literally just your bodyweight and a bit of floor space. This matters more than people think, because a plan built for a gym doesn’t translate to a spare room without changes.

And finally, any injuries or things your body doesn’t love doing. Bad knee, dodgy shoulder, lower back that complains after deadlifts. Write it down now so you don’t forget to mention it later.

Get set up

Any of the mainstream AI assistants will do this job: ChatGPT, Claude, Gemini, or Copilot. You don’t need a paid plan to get a decent plan out of them, though the paid tiers on some tools give you more messages per day and, in ChatGPT’s case, a voice mode that can talk you through a session out loud while you train, which is genuinely useful if you don’t want to be staring at your phone between sets.

Open whichever one you already have access to. If you’ve never used any of them, ChatGPT and Claude both work through a simple chat box, you type, it replies. No downloads needed, just a browser or an app.

What you’re about to do is have a conversation, not fill in a form. You’ll give it context, it’ll give you a plan, and then you’ll go back and forth refining it. Treat it like briefing a personal trainer who’s never met you and can’t see your body. Because that’s basically what it is.

Try it yourself

Here are three prompts that do three different jobs. Run them in order, in the same conversation, so the AI keeps the context from one to the next.

First, the core plan itself.

I want to build a workout plan. Here's my situation:
- Goal: build general strength and muscle
- Experience: beginner, done a bit of home workouts but nothing structured
- Days available: 3 per week
- Equipment: a pair of adjustable dumbbells, resistance bands, no gym access
- Injuries or limits: mild lower back ache if I do heavy deadlift-type movements

Please write me a 3-day-a-week workout plan using only this equipment.
For each day, list the exercises, sets, reps, and rest time.
Flag anything that might aggravate my back and suggest an alternative.

Second, once you’ve got the plan, ask it to break the exercises down properly. You want to actually understand what you’re doing, not just follow a list blindly.

For each exercise in the plan you just gave me, explain:
- How to do it with correct form, step by step
- What muscles it's working
- What "too much" feels like versus normal muscle fatigue
- A common mistake beginners make with this exercise

Keep it plain and practical, not overly technical.

Third, ask about progression. A plan that stays exactly the same for eight weeks isn’t really a plan, it’s a routine, and your body will stop responding to it fairly quickly.

Based on this plan, how should I progress it over 4 weeks, and then over 8 weeks?
Assume I'm a beginner and my dumbbells go up in 2kg increments.
Tell me when to add weight, when to add reps, and how to know
I'm ready to move up rather than just guessing.

Three prompts, three jobs done. You’ll have a plan, an understanding of each exercise, and a rough map of how it should evolve.

Check the result

Now, before you do a single rep, check the thing actually makes sense.

Start with volume. The NHS physical activity guidelines recommend adults do at least 150 minutes of moderate activity a week, or 75 minutes of vigorous activity, plus muscle-strengthening activities on two or more days a week. If your AI-generated plan has you training seven days a week at high intensity with no rest, that’s a red flag worth questioning, especially as a beginner. Ask the AI directly: does this match general activity guidelines, and where does it diverge and why.

Next, can you actually do the exercises with what you’ve got? Read through the list and picture yourself doing each one, today, in your house or your gym. If it’s asked for a barbell and you’ve got dumbbells, or a cable machine you don’t have, go back and say so. Don’t just skip exercises and hope for the best, that unbalances the whole session.

Then check the progression makes sense for where you actually are. If you’re brand new to structured training, a jump from bodyweight squats to weighted lunges in week two might be too much, too soon. Ask the AI to slow it down if it feels rushed. There’s no prize for progressing fast, only for progressing at all.

Finally, a simple gut check: read the plan out loud to yourself, or to someone else if you can. Does it sound like something a sensible person would suggest? If something sounds off, it probably is.

If it doesn’t work

A few things to keep in mind here, because this is where people either get good results or waste a lot of time being frustrated.

First, on privacy. Don’t hand an AI your full medical history, past diagnoses, medication lists, or anything you wouldn’t want stored somewhere. A simple line like “I have a dodgy lower back, avoid heavy spinal loading” gives the AI what it needs without you oversharing sensitive detail. These tools are not medical services and they’re not confidential in the way a conversation with your GP is.

Second, and this matters: if you feel pain that isn’t normal muscle soreness, stop. Sharp pain, joint pain, anything that feels wrong rather than just tired, that’s not something to push through because an AI told you to progress this week. Go and see a physio, a doctor, someone qualified. This is genuinely not medical advice, it’s just a starting point for a plan, and no chatbot can examine your knee.

If the plan feels wrong in some other way, just say so, in plain terms. “This feels too easy” or “I don’t understand why this exercise is here” or “I can’t do this move, my shoulder won’t let me” all get you somewhere. Ask it to try again with that specific feedback rather than starting a whole new conversation from scratch, it’ll remember what you told it before.

And if you want an app to actually track your sessions and remember your weights week to week, rather than you scribbling numbers in your phone’s notes app, something like Hevy or Strong does that job well, and Fitbod goes a step further by adapting future sessions based on what you logged. None of these replace the planning conversation you just had, they’re for logging and keeping momentum once you’ve got a plan you trust.

Keep exploring

If this went well, the same approach works for other bits of life admin. There’s a guide on how to get AI to make a meal plan, which pairs naturally with a workout plan if you’re trying to hit a specific goal. There’s also one on how to get AI to organise my schedule, useful if fitting three training days into your week is the actual hard part. And if you want something to listen to while you train, there’s a guide on how to get AI to make a playlist too.

Sources and review notes

Review date: 15 September 2026 — every source above was opened and checked against the text on that date.