Strengths and limits

Where it's strong,
and where it fails.

Most AI training apps describe their analysis in marketing language and stop there. This page covers what footage the analysis handles well and the specific situations where it gets things wrong.

The short version

Brawler checks your clip against seven technique checkpoints and returns corrections with drills. It is good at catching faults you repeat. It is poor at anything requiring context about your opponent or your intent. It is not a substitute for a coach.

Where it gets things wrong.

Every one of these is a real limitation. Knowing them makes the output more useful, not less.

Sparring is the hardest case

Two bodies in the frame make the footage harder to read. When your opponent's arm crosses yours, it can be unclear whose movement is whose. Expect more errors in sparring footage than in shadowboxing.

It cannot see intent

A dropped lead hand is a fault — unless you dropped it deliberately to draw a lead. The analysis flags what it sees and has no way to know which it was. If a correction contradicts something you were doing on purpose, you are right and it is wrong.

Camera angle changes the result

Several checkpoints need a side view to assess properly. Shot head-on, weight distribution and range are partly guesswork. The same round filmed from two angles can produce different feedback, and that is a limitation of the method, not a bug.

It does not know your opponent

Punch selection is judged against general principles, not against what a specific opponent gives you. A corner can tell you the hook is there because of what he has done for two rounds. This cannot.

Nobody in this category publishes accuracy data

No AI boxing app currently publishes independent accuracy testing, and that includes Brawler. Anyone claiming a precise accuracy figure without a published method is guessing. We would rather say that than imply a number we cannot support.

How to film a round that reads well.

  • Side angleShoot from your lead side, not head-on. Several checkpoints need to see depth.
  • Waist heightPhone propped at roughly waist height, full body in frame including feet.
  • Even lightAvoid backlighting and strong single-source shadow. Low light makes it harder to read what you are doing.
  • Plain backgroundA busy background with other people moving makes the footage harder to read.
  • One full roundA full round beats a highlight clip. Faults that only appear when you tire are the ones worth catching.

Questions

How accurate is AI boxing video analysis?
It is reliable at catching repeated, visible faults — a rear hand that drops on the jab, feet that cross while moving, a head that stays on the centerline. It is much weaker at anything requiring context: whether a shot was the right choice against that opponent, whether you were deliberately drawing a lead, or what happened outside the frame. No AI boxing app publishes independent accuracy figures, including this one. Treat the output as a second pair of eyes, not a verdict.
What footage works best?
Shadowboxing and bag work are the most reliable, because you are the only person in frame and your whole body is visible. Pad work is usable. Sparring is the hardest case. Two bodies overlap and the camera angle changes what is visible, so expect more errors.
Why did I get similar feedback on two different rounds?
Usually because the underlying fault did not change between them. If you have a persistent guard problem, it will be flagged every round until you fix it. But similar feedback can also mean the clip was too short, too dark, or shot at an angle where the fault area was not visible. If the feedback feels generic, reshoot from the side at waist height in good light before concluding the round was clean. It can also be a limitation of the analysis itself: feedback can come back similar even when you have changed how you move. If you change one thing on purpose and the feedback does not move, treat that as a limitation, not proof that nothing changed.
Does it replace a coach?
No. It cannot hold mitts, read a live sparring session, adjust a game plan between rounds, or see the things that only show up in person. What it does is cover the hours you train alone, which for most people is the majority of their training.
Is my footage used to train the model?
See the privacy policy for the current, authoritative answer on how uploaded video is stored and used.

Now you know
what you're getting.

Film one round, see what it catches, and judge it against what you just read.