Bring your own AI key. Connect the apps you already use. Science-backed periodization for cyclists, rowers, and runners.
Coggan 7-zone power model, CP/W' anaerobic reserve, polarized periodization, and event-specific phase shaping. Not generic intervals.
Connect intervals.icu or Strava to import your fitness history. Push workouts as ZWO files to Zwift, Wahoo, Garmin, MyWhoosh, and 250+ apps.
Bring your own Claude, GPT, Gemini, or Grok key. The AI runs on your account. We never store your fitness data or training conversations.
Builds your aerobic engine. Long Z2 rides, low intensity, high volume.
Sweet spot and threshold work. Event-specific intensity introduced.
Race-specific sharpening. Polarized: mostly easy with targeted hard efforts.
Volume drops 40-50%, intensity maintained. Arrive fresh.
You add your own API key from Anthropic, Google, OpenAI, or xAI. When your plan generates, the AI runs on your account using your tokens. We never see your training data or conversations.
Gemini Flash is free with a Google account. A full 12-week plan typically costs under $0.02.
No subscription, no upsell, no ads. If it helps your training, a coffee goes a long way.