How do I actually follow this run once the AI writes it?

Paste the AI's reply into sweatcue. It structures the session into timed blocks with auto-starting rest timers and calls every set, rest and rep out loud, so you train hands-free instead of scrolling a chat window.

Home › Workout library › VO₂max intervals

Running · Endurance

VO₂max intervals

Q: What is the best ChatGPT prompt for a running workout like this?

Use the research-backed prompt on this page: "Write me a 40-minute interval run to build my top-end engine. Start with a 10-minute easy warm-up jog, then 5 × 3 minutes hard at roughly 5k race effort (heart-rate Zone 5, around 95 to 100% effort) with 2 to 3 minutes e…" Copy the full version with the button above — it wraps the request so ChatGPT, Claude or Gemini returns a clean, followable run you can run hands-free in sweatcue.

Intermediate · 25–39 · ~40 min

Banks time near your ceiling to lift your top-end fitness. Below is a research-backed prompt for ChatGPT, Claude or Gemini — copy it, paste the reply into sweatcue, and run the whole run hands-free.

Session at a glance

Duration~40 min

FormatTimed intervals

FocusVO₂max

IntensityZone 5

EquipmentJust you (a watch helps)

Best forEndurance, intermediate

This is how sweatcue structures the session once you paste it in — timed blocks with auto-starting rest and spoken cues. Figures are read from the prompt itself.

The prompt

Copy the complete prompt (it wraps the request below so the AI returns a clean, runnable session).

Write me a 40-minute interval run to build my top-end engine. Start with a 10-minute easy warm-up jog, then 5 × 3 minutes hard at roughly 5k race effort (heart-rate Zone 5, around 95 to 100% effort) with 2 to 3 minutes easy jog recovery between reps, then a 5-minute easy cool-down. Tell me to pace the hard reps by feel and breathing rather than just heart rate, because heart rate lags on short efforts. Give each block a duration and a target heart-rate zone, and group the work as repeating intervals.

Works with Claude, Gemini, Grok or any AI.

Why it's built this way

Repeated ~3-minute efforts near VO₂max pace bank a lot of time at high intensity, which raises your aerobic ceiling. Pace them by effort and breathing — heart rate lags on short, hard reps, so it's a guide rather than a gate.

Sources: Billat et al., Eur J Appl Physiol 2000; Stöggl & Sperlich, Front Physiol 2014

Run it hands-free in sweatcue

sweatcue is an AI workout dashboard: paste the AI's reply and it runs the whole session on screen and out loud — auto timers, spoken cues for every set, rest and rep, and your live numbers. The AI writes it; sweatcue runs it.

Download for iPhone →

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New to prompting an AI for workouts?

Start with the full workout library, learn the method in how to write a workout prompt, or see what an AI workout dashboard does.