How Coach Harvey works
Most golf apps tag every flaw and leave you to figure out which one matters. Coach Harvey watches your swing the way a good human coach would — and tells you the one thing to fix next.
Three layers, one directive
Every swing you upload moves through the same three layers before Coach Harvey says a word.
See
We extract pose keypoints frame by frame from your swing video — the joints that matter for golf, tracked through every phase from address to follow-through.
Reason
The swing context goes to Claude Sonnet 4.6 (Anthropic). Claude reads it like a coach would — phase by phase — and identifies the single highest-leverage fault.
Remember
Every directive is stored alongside your swing history. The next session knows what we worked on last time and watches for whether it stuck.
Why one directive at a time
The fastest way to slow a golfer down is to give them a checklist. Five things to think about at the top of the backswing means zero things actually change. Real coaches know this. They pull you aside, give you one cue, and let you work it until it sticks.
Coach Harvey is built around that same idea. We will always show you what we saw across the whole swing — the pattern, the telemetry, the alternatives we considered — but the headline is always one thing. One thing to take to the range.
Why Claude
Most “AI golf” products quietly use whatever model was cheapest the day they shipped, hide the name behind a generic AI label, and never tell you who is actually doing the thinking.
Coach Harvey runs on Claude (Anthropic). Every coaching call, every chat answer, every pattern detection. We picked Claude because reasoning quality matters more than speed when the output is something you’re going to take to the range and practice for an hour.
A good coach takes a beat before speaking. So does Coach Harvey.
What we don’t do with your swing
Your swing video is yours. We don’t sell it. We don’t hand it to advertisers. We don’t use your videos to train third-party AI models.
Coach Harvey is not a substitute for a PGA professional, a physical therapist, or a launch monitor. It’s a swing coach — opinionated, pattern-aware, and always available — built to sit alongside whatever other coaching you already get.
The full details are in our privacy policy.
See it on your own swing
Upload a swing in under a minute. Free during the launch.