Turn a gym class schedule into a weekly workout plan with 10 free AIs

PartialEvidence: Described by posterPosted Oct 26, 2026Last checked Nov 3, 2026

Daniel Costa tested 10 free AIs on a gym schedule; four couldn't read the site, and only Qwen made no mistakes.

Source checked Nov 3, 2026
Results shared
Limitations noted

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Prompt

Improved prompt

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What the prompt labels mean

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Before you start, ask me 1–3 short questions about the details below and wait for my answers. Once I've answered, confirm the plan in one line and run the whole task start to finish.

Goal: Turn my gym's class schedule into one clean weekly table that flags overlapping classes, then check my workout plan.

Questions to ask me first:
- Which class types do you care about?
- Is your plan a list of options to choose from, or classes you'll attend?
- Do you want a rest day built in?

Inputs (fill in or confirm):
- Schedule: [LINK OR PASTED TIMETABLE]
- Class types: [LIST]
- My plan: [CLASSES I MIGHT TAKE]

Rules:
- Make one weekly table, calendar style, with one row per time slot.
- Highlight times when two classes run at once.
- If you can't read the schedule page, say so and ask me to paste it instead of guessing.
- Never say a class type has no sessions unless the schedule shows none.
- Treat my plan as options unless I say I'll attend everything.

Checkpoint: Show me the table first and list any classes you weren't sure about.

If you get stuck: If the page won't load or the times look inconsistent, stop and tell me what's missing.

Verify before you finish: Count the sessions for each class type and compare them against the schedule before finishing.

Output: A weekly table, a list of overlaps and short notes on my plan, including rest days.

Done when: The table matches the gym's schedule exactly, and every overlap is flagged.

Customize this prompt

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Schedule

Class types

My plan

Your prompt

Before you start, ask me 1–3 short questions about the details below and wait for my answers. Once I've answered, confirm the plan in one line and run the whole task start to finish.

Goal: Turn my gym's class schedule into one clean weekly table that flags overlapping classes, then check my workout plan.

Questions to ask me first:
- Which class types do you care about?
- Is your plan a list of options to choose from, or classes you'll attend?
- Do you want a rest day built in?

Inputs (fill in or confirm):
- Schedule: [LINK OR PASTED TIMETABLE]
- Class types: [LIST]
- My plan: [CLASSES I MIGHT TAKE]

Rules:
- Make one weekly table, calendar style, with one row per time slot.
- Highlight times when two classes run at once.
- If you can't read the schedule page, say so and ask me to paste it instead of guessing.
- Never say a class type has no sessions unless the schedule shows none.
- Treat my plan as options unless I say I'll attend everything.

Checkpoint: Show me the table first and list any classes you weren't sure about.

If you get stuck: If the page won't load or the times look inconsistent, stop and tell me what's missing.

Verify before you finish: Count the sessions for each class type and compare them against the schedule before finishing.

Output: A weekly table, a list of overlaps and short notes on my plan, including rest days.

Done when: The table matches the gym's schedule exactly, and every overlap is flagged.

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ChatGPT Used in source Gemini Used in source Grok Used in source Claude Used in source

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The prompt they actually used

The exact prompt from the source.

turn this into a cleaner weekly table, calendar-style, showing only 1 row per time slot and highlighting the times when there are two simultaneous classes.

AI tools

ChatGPT Gemini Claude Grok Perplexity Meta AI Copilot DeepSeek Qwen Mistral

Outcome

Daniel Costa tried 10 free AI chatbots on a real task: reading a gym's class schedule from its website, turning it into a clean weekly table that flags overlapping classes, then reviewing a personal workout plan. Claude, Meta AI, DeepSeek and Copilot couldn't read the JavaScript-built website and were out at the first step. Perplexity said one class type had no sessions when it actually has 3 a week, and Grok was dropped for failing to produce a single weekly table as asked. When Costa pasted in a plan of optional classes, ChatGPT and Gemini assumed every class would be attended and needed it explained. Qwen understood the options, caught a class listed on the wrong day, offered a .csv or Excel export and warned about overtraining with no rest day. Mistral, added late, made similar mistakes to ChatGPT but edged it out with charts and a fuller analysis. Costa ranked Qwen first as the only one with no factual or interpretation errors.

Evidence: Described by posterThe person describes what happened in words, without screenshots or video.

Known limitations

PartialThe source says it only partly worked, or had a significant problem a person had to deal with.

What went wrong: Only Qwen finished without errors; four chatbots couldn't read the website, and others misread the schedule or the plan.

Source

Posted: Oct 26, 2026 by Daniel Costa (blog)
Last checked: Nov 3, 2026
Method:: How we verify

https://www.danielcemm.com/2026/10/i-compared-10-ais-for-personal-task-and.html

Context: The original prompt is the one Costa quotes for the table step; the Improved version is ours and hasn't been tested. Costa calls this a quick, informal test using free plans only, so paid versions may do better. The gym schedule was read from a site built with JavaScript, which some free chatbots can't load.