Meet Domestique - your AI training partner.
A domestique is the support rider on a cycling team - fetches bottles, sets pace, takes pulls for the leader. Your Neverchill domestique is an AI that knows your CTL, baselines, and recent load. It is in your corner. Humans always in the loop.
The 6am "should I rest today?" Slack to your coach.
You wake up, your legs feel cooked, the calendar says intervals. The decision can wait until your coach is online - or you can ask Domestique right now and get a useful answer rooted in your actual numbers. Your coach reads the thread later. Nobody wakes up at 6am for a triage question.
The positioning is explicit: complementary to a real coach, not a substitute. Domestique handles the "what should I do for the next hour" questions so humans can focus on the "what should I do for the next six months" ones.
Four things that make Domestique different.
It sees your data.
Your CTL, ATL, TSB, FTP history, recent sleep import, weight, last threshold block - Domestique has the same dashboard your real coach uses, with the same caveats about what is measured vs. estimated.
It reads your planned workouts.
When you ask "should I do this?", it knows what "this" is. The interval structure, the target wattages tied to your current FTP, what you did yesterday, what is on the calendar tomorrow.
It chats in context per workout.
Every planned session has its own thread. Ask about pacing, fueling, terrain choice, whether to bag it and ride easy. The conversation lives where the workout lives - not in a separate app.
Your coach can override.
If you have a real coach using our Coach Dashboard, they see the Domestique conversations on athletes who opt in. They can pin a correction, mute Domestique on a workout, or take the wheel entirely.
"I just paste my numbers into ChatGPT."
You can. You will be doing it again next session. Here is what changes when the model lives where your data lives.
It has your numbers.
ChatGPT will happily give you a workout for a hypothetical 250W FTP. Domestique uses the FTP test you actually completed last Thursday - and the one before that, to know if you are trending up.
It remembers.
No "what was that workout we talked about last week?" It is reading the same training log you are. The context window is your last 90 days of riding, not a fresh chat session.
It links to the actual activity.
Replies cite specific rides. "Your last VO2 block on May 14 averaged 108% - start interval 1 at 105% today and build" - with the link to that May 14 ride right there.
It says I do not know.
Tuned to flag uncertainty rather than confabulate. If your data is sparse, it asks instead of inventing a TSS curve.
Honest answers.
Why do you call it Domestique? +
A domestique is the support rider on a pro cycling team - fetches bottles, sets pace, takes pulls into the wind for the team leader. They do the unglamorous work that lets the leader save legs for the moment that matters. That is the right metaphor for what an AI training partner should do. Domestique handles the "should I rest today?" triage, the pacing math, the quick check on your CTL - so you (and your real coach) can spend energy on the decisions that matter.
Does Domestique replace my coach? +
No. It is positioned as a faster first line - the "should I rest today?" Slack message at 6am that does not need to wake your coach up. Coaches who use Neverchill see Domestique as triage that lets them focus on the high-leverage work: race strategy, periodization, the conversations that actually need a human. Domestique fetches the bottles. Your coach picks the race.
What model powers it? +
A current-generation frontier model from a major provider, with a system prompt and tool layer specific to endurance training. We swap models as better ones ship. The training-load math, FTP calculations, and TSS computations are done by our backend, not by the model.
How does Domestique use my data? +
Real-time inference goes through Anthropic with zero-retention terms - they do not train on it. Our own models (route classifiers, climb categorizers, Domestique fine-tunes) DO train on athlete data. That is how Domestique learns from how strong athletes actually train. You can opt out of training in Settings → Privacy.
Can I turn it off entirely? +
Yes. Settings → Domestique → Off. The product works without it. No degraded experience, no nags. If your coach prefers you not use it, your coach can disable it for your account from the Coach Dashboard.
Will it tell me to overtrain? +
The opposite, in practice. The default tuning errs toward recovery when TSB is deep negative and when sleep or HRV imports flag stress. Domestique is more likely to talk you out of a session than into one.
Faster decisions. Same coach.
Join the waitlist. Domestique is included on every plan, including the free tier. Your coach is not.