An AI coach built on mountain-athlete methodology.v1.0
Email-native because your training deserves more than a notification.
Polarized aerobic-base training, delivered as a weekly brief.
One-click OAuth. We read your last 90 days of activities. Nothing else. You stay on Strava, Garmin, COROS — whatever you already use.
Within minutes, a brief arrives. Current aerobic threshold estimate. Your ratio to anaerobic threshold. What's holding you back. What to do first.
Sunday evening: next week's plan. Training mornings: a short brief. Reply anytime — we read every one. Plans adapt weekly to what your body says back.
No push, no streaks, no stream. Just the thinking — written down, delivered when it's useful.
Good evening. Your week ahead.
You mentioned last Tuesday that the cough had mostly cleared but your legs still felt heavy on Friday's easy run. HR data supports that — average aerobic HR ran 7 bpm higher than your March baseline at the same pace. We're not rushing this one.
Saturday is our first intensity in three weeks. If the warm-up feels off, skip the intervals. Progress is consolidation, not pressure.
Target volume: 6h30. Down from 8h two weeks ago, but up from 4h last week. A 62% ramp is deliberate — most of the gain is Z2 minutes, not intensity.
One question for you: how's sleep this week? If you're back to seven solid hours, Saturday's session stays as written. If not, reply and I'll rewrite Saturday as a pure Z2 hour.
— Glide
Morning.
Yesterday's easy 45: average HR 148 at 5:30/km. A month ago that same pace sat at 142. Not alarming. But the body is still catching up on something, and this run is not the day to test it.
Go out at conversation pace. If you can sing a phrase of something, you're in the right zone. If you can only speak single words, slow down by 20 seconds per kilometer and give your heart rate a minute to respond.
The goal today is the minutes, not the pace. The best base weeks are often the slowest ones.
One note if you're tempted to push the final climb: don't. That's what Saturday is for.
— Glide
Most endurance apps are written by engineers who read one training chapter and called it a plan. Glide is written out of the tradition of mountain endurance — quiet aerobic volume first, intensity only when the base can hold it.
Aerobic base comes first. 80–90% of your volume sits at or below aerobic threshold. Intensity only enters when the base is deep enough to hold it — and only in doses your recovery can absorb.
Aerobic Deficiency Syndrome is taken seriously. If your aerobic threshold sits too far below your anaerobic threshold, Glide will not prescribe intensity — no matter how badly you want it. This is where most athletes break themselves.
Periodization is explicit. Transition. Base. Specific. Taper. You will always know which phase you are in and why this week looks like this week.
Life context is a training variable. Sleep. Travel. A parent in hospital. A long week at work. These go into the plan, not around it.
We chose not to be everything for everyone. If you are any of these, Glide will feel like it was written for you.
The diagnostic is free because it should be. Coaching is paid because it has to be.
For general training, yes — the same way reading a training book is safe. For diagnosed medical conditions, recent surgeries, or acute injury, Glide will route you to your physician. Medical red-flag detection is built into every reply we process.
Reply to any email with what's happening. The plan rewrites for next week. If we detect certain patterns — sudden severe pain, neurological symptoms, chest or cardiovascular issues — we stop the plan and recommend seeing a professional.
In beta: Strava only. Both Garmin and COROS sync to Strava automatically, so most watches are covered. Direct integrations arrive after launch.
Nothing. No guilt email, no "you broke your streak," no algorithmic judgment. You pick up with next Sunday's plan. Glide notes that you missed the week and adjusts volume accordingly.
Yes. Every reply enters your memory and affects next week's plan. If you write something that needs human attention, we flag it for review. You never reply into a void.
Your attention belongs on the trail, not in an app. Training data is a means to a decision; the dashboard is where that decision dies in a swipe. We read the data for you and send you the conclusion.
ChatGPT forgets everything after the chat. Glide remembers six months of your training, your preferences, your races, and the week you had the cold. That memory, not the model, is the product.
Leave your email. When a slot opens we send an invitation — one click, a 90-day diagnostic, then decide.
