The short answer
Use the chat for the draft, and a log for the weeks after
ChatGPT, or any chatbot, can write a decent workout plan in moments if you give it your goal, days, minutes, exact equipment, current numbers and injuries. The prompt below covers all of them. What a chat cannot do on its own is see what you logged last week and move next week's weights to match. If you will paste your numbers back every week, a chat plan can be enough. If you would rather the plan follow your log by itself, use a training app such as Aion, which we make.
A chatbot and a training app at a glance
| App | Best for | Price | Free | Sees your training log |
|---|---|---|---|---|
| ChatGPT (or any chatbot) | A fast first plan for any setup | Free; Go $8 and Plus $20 a month | Free plan at $0 | Only what you paste in or connect |
| Aion Coach | A plan that follows what you log | Plan free; chat coach from $3.49 a week | The whole plan, with progression | Yes; the log sets the next session |
How this was put together
This compares two ways of getting a plan: asking a chatbot, and using an app that keeps your training log. ChatGPT stands in for every chatbot here, because the habits that make a chat plan work are the same in all of them.
ChatGPT's prices come from OpenAI's pricing page and its US App Store listing, read on October 20, 2026, and its rating from Apple's public lookup for the US store. Aion's facts come from our own product. When this guide says what a chat cannot do, it means a chat used on its own, with no training log connected to it.
People search for the prompt itself, in every language, so it comes first. Copy it, fill in the brackets, and read the rest once you have a plan in hand.
The picks
Best for a fast first draft, free
ChatGPT (or any chatbot)
A chatbot is the quickest way from nothing to a written plan. Describe yourself well and you get a sensible four-week block in moments, with the reasoning if you ask for it, on a free plan. It will write around odd setups too: a hotel room, two kettlebells, a sore shoulder and 25 minutes. Its weak spot is everything after the first week, because it only knows what you type into it.
Where it is strong
- Free, on the web, the desktop and the phone
- Writes around any kit, schedule or limit you describe
- Explains its choices and answers follow-up questions
- The same prompt works in any chatbot
Where it falls short
- Does not see what you logged unless you paste it in or connect an app that holds it
- Does not move next week's weights by itself
- Can lose your constraints between chats, so paste them back each time
- Works only from the equipment you list, with no way to check what you actually have
- Price
- Free plan at $0. Go is $8 a month, Plus $20 a month and Pro from $100 a month, per OpenAI's pricing page. Plus is listed at $19.99 on the App Store
- Free
- A free plan at $0, per OpenAI's pricing page
- App Store rating
- 4.8 from 11,463,913 ratings (US)
- Platforms and languages
- Web, desktop and mobile apps, including iPhone and iPad. English and 59 more, per the App Store listing.
Checked October 20, 2026. App Store listing · Developer site
Best when the plan has to follow your log
Aion Coach
Aion is ours. It does the part a chat does not do on its own: the plan lives next to your logbook, and the log moves it. A session that goes well moves the next one up one small step, two misses back it off, and that is free. The plan uses only exercises your kit allows, from a 594-exercise catalog, and injuries you mention are remembered so that aggravating moves are eased or swapped. Members can still talk to it: ask for a swap, a shorter session or another day, and a before-and-after card waits for Apply or Keep.
Where it is strong
- The log drives the next session, on the free plan
- Your kit, limits and injuries stay with the plan, so you do not paste them again
- Ten calisthenics skill ladders, and running and HYROX plans
- Changes show as a before-and-after card before they apply
Where it falls short
- iPhone only, and the app is in English
- New, with no US ratings yet
- The chat coach is paid; free users get one swap per workout
- No camera form check, and no nutrition or calorie tracking
- Price
- Plan free. Coaching membership $3.49 a week, $9.99 a month, $59.99 a year; the annual one opens with 7 free days
- Free
- The whole plan: every workout, every new week, the logbook, progression and one exercise swap per workout
- App Store rating
- Too new to have ratings yet (US)
- Platforms and languages
- iPhone. English.
Checked October 20, 2026. App Store listing · Developer site
A workout plan prompt you can copy
Paste this into ChatGPT or any other chatbot and replace everything in square brackets. Each line is there because a chat plan goes wrong without it.
- Act as an experienced strength and conditioning coach and write me a 4-week training plan.
- Goal: [build muscle / first pull-up / run 5 km under 30 minutes / get fitter overall], by [date, if there is one].
- Schedule: [3] days a week, on [Monday, Wednesday, Saturday], [45] minutes per session including the warm-up.
- Equipment: I have exactly [two adjustable dumbbells up to 24 kg, a pull-up bar and a bench]. Use nothing else.
- Experience and current numbers: [I have trained on and off for a year; goblet squat 20 kg for 10, 3 pull-ups, 15 push-ups].
- Injuries and limits: [my left knee hurts in deep lunges]. Avoid or adapt anything that loads it, and tell me what you changed.
- For each session give the exercises in order, with sets, reps or time, rest, and a target effort in reps in reserve.
- Tell me exactly how to progress each exercise from week to week, and what to do if I miss my reps.
- Make week 4 lighter, and explain why.
- Before you write the plan, list every assumption you made about me, and ask me if anything important is missing.
Two habits make the plan much better. Keep this prompt somewhere you can find it, because you will paste it again. And at the end of each week, paste back what you did, then ask for next week based on that. The table shows what to include.
| Paste | Example |
|---|---|
| Each exercise, with the weight and the reps you managed | Goblet squat 22 kg: 10, 10, 8 |
| Sessions you missed or cut short | Saturday skipped for travel; Wednesday cut to 30 minutes |
| Anything that hurt | Knee fine; left shoulder sore on the overhead press |
| How hard the last sets felt | Last set of squats about one rep short of failure |
What a chat plan does well
Speed is the first thing a chatbot has going for it. A blank page becomes a month of sessions in less time than a warm-up takes, and it costs nothing on ChatGPT's free plan, which OpenAI's pricing page lists at $0. You can ask why it chose each move and get an answer straight away.
The second is that it bends to whatever you tell it. Say you are in a hotel with one 10 kg dumbbell, or that you can only train at 6 am for 25 minutes, and it writes around that. It will explain a term you do not know, suggest a swap for a move you hate, or rewrite the whole week as a different split. For a first plan, or for someone who already knows how to train and just wants a structure on paper, that is often enough.
What a chat plan cannot do on its own
None of this is about the quality of the writing. It comes from the fact that a chat only knows what is in the conversation.
- It does not see what you logged last week. Unless you paste your sets back in, or connect it to an app that keeps them, next week's plan is written blind.
- It does not move next week's weights. Progression happens only when you report what you lifted and ask for the next step.
- It can lose your constraints between chats. Some chatbots keep a memory of things you tell them, but it is safer to paste your schedule, kit and injuries at the top of every new chat than to trust that they carried over.
- It cannot check your kit. It works from the equipment you listed, so forget to say there is no bench and you may get a bench press.
- It does not notice patterns. Three weeks of missed Fridays, or a lift that stalled a month ago, only count if you spot them and say so.
If you are happy to keep a log yourself and paste it back each week, all of this is manageable, and plenty of people train well that way.
Where an app with a log fits
A training app earns its place when the log and the plan are the same thing. You record the session where you read it, and the next one changes from that record without you having to ask.
That is what Aion does with its free plan. It builds the week from your days, minutes, kit and goal, using only exercises the kit allows. When a logged session goes well, the next one goes up one small step; two misses and it backs off. Injuries and limits you mention stay with the plan, so you do not have to repeat them, and moves that aggravate them are eased or swapped.
The chat is still there for members. Ask for a swap, a shorter session or another day, and Aion shows a card with the plan before and after the change. Nothing moves until you tap Apply, and Keep leaves it as it was. Without the membership you still get one swap per workout.
A chatbot remains the better tool for some jobs. If you want to understand why a program is built the way it is, if you need a one-off plan for a trip, or if you are on Android, open a chat. Aion is iPhone only and in English. Many people will do best with both: draft and question a plan in a chat, then train and log somewhere that keeps the numbers.
Questions people ask
Can ChatGPT make a good workout plan?
Yes, if the prompt is specific. Give it your goal, days, minutes, exact equipment, current numbers and injuries, and ask for sets, reps, rest, effort and a rule for progressing. A vague prompt gets a generic plan.
What should I put in a ChatGPT workout prompt?
Seven things: the goal, with a date if there is one; the days and minutes you have; your exact equipment; your experience and current numbers; any injuries; the format you want for each session; and how to progress. The prompt above has a line for each.
Is ChatGPT free for workout plans?
Yes. OpenAI's pricing page lists a free plan at $0, which is enough to write and revise a plan. Paid plans start with Go at $8 a month, and Plus is $20 a month.
Does ChatGPT remember my workouts?
Only what is in the chat, or what you connect to it. Some chatbots keep a memory of facts you share, but a chat sees the sets you did only if you paste them in or connect it to an app that holds them, and it does not move next week's weights by itself. Pasting a short weekly log back in is the fix.
Is a training app better than a ChatGPT plan?
For the weeks after the first, usually, because the app keeps the log and adjusts from it. For a fast first plan, an odd setup or understanding why a program works, the chat is often the better tool. We make Aion, an app whose free plan progresses from your log, so weigh our view with that in mind.
Sources
- ChatGPT, US App Store listingApple App Store, read October 20, 2026
- ChatGPT plans and pricingOpenAI, read October 20, 2026
- Aion Coach, US App Store listingApple App Store, read October 20, 2026
- Aion plan and membership pricesAion Coach
- US ratings and counts for ChatGPT and AionApple iTunes Lookup API, read October 20, 2026
Prices and ratings change. Each app's facts carry the date they were read; tell us at the support page if one has moved. How the guides are written: How the guides are written.