The big difference from traditional robotics is that there's no human operator at all. It's a 2-vs-2 alliance match (red vs blue), each team fielding two robots (usually one 18-inch and one 15-inch). The 2026 game is Push Back; a match is 2 minutes in two phases:

① 15-second "Isolation Period": robots stay on their own half, using preloaded paths and vision to collect and load blocks — no crossing the line. The higher-scoring alliance earns an "Auto Bonus"; meeting tough conditions also earns an "Autonomous Win Point (AWP)."

② 1:45 "Interaction Period": the field opens up; all four AI robots cross over to grab resources, defend, and even body-check each other — all on their own judgment.

Keys to winning (hardware is the vehicle; software is the soul)

· Zero-latency color sorting: there are 44 red + 44 blue blocks. Top AIs judge color mid-intake at speed using edge compute (e.g. Nvidia Jetson) + vision, firing their color into goals and spitting the opponent's back out.

· Dynamic pathing: no rigid fixed route — scan the field live for the nearest match loads, and instantly re-localize and re-plan after being knocked off course.

· Clean parking: in the final seconds, autonomously climb into the Park Zone and hold, locking in baseline points.

The disaster reel

· Scoring for the opponent: the deadliest software bug — a misjudged color or a glare-confused vision model has the robot diligently scoring the opponent's blocks into its own goal.

· AI blindness (zero packets): dropped comms, overheating, or a camera blind spot, and the AI loses all sense of the field — the robot freezes, or "does donuts" in the middle.

· Violations & pinning: odometry drift across the midline during isolation = a violation; pinning an opponent to a wall too long in interaction draws a stop or penalty.

· Physical jams: a path that ignores obstacle height high-centers the chassis on a goal base; or the intake swallows a rubber band / loose part and seizes the gears.

VEX AI gives you no standard-issue robot — teams design both hardware and software from scratch, within the official ecosystem:

· Hardware: frame/motors/gears use the official VEX V5 system; the only "spec" is size — before a match the robots must fit 18×18×18 and 15×15×15 inch boxes (they may expand afterward). What VEX AI unlocks: heavy use of 3D-printed custom parts, plus third-party compute (Jetson, Raspberry Pi) and advanced sensors (Intel RealSense depth cameras, LiDAR).

· Software (the real decider): perception (train a YOLO-style detector for blocks/goals/opponents), localization & navigation (odometry/SLAM + GPS + IMU, re-planning after being knocked away), decision-making (decision trees / state machines: "opponent nearing our scoring zone → defend; 15s left and ahead → return to base and climb to park"), and low-level control (motor PID).

Even with identical hardware, it's software stability, inference latency, and decision flexibility that separate champions from the rest.

It looks off, but they're not secretly driving (touching the sticks to operate gets you disqualified on the spot). In VEX AI the controller turns from a "steering wheel" into a monitor + safety lock, with four jobs:

1. Start / strategy select: before the match, pick which AI script to run (defense mode, contest the center, a specific nav route).

2. Kill switch: AI has bugs — if the robot is about to hit the perimeter, interfere with its partner, or seize a mechanism and cook a motor, you cut power immediately.

3. Telemetry: the controller's small screen is the dashboard — live battery, which decision stage the state machine is in, whether the camera sees blocks, motor temperatures, and so on.

4. Field connection: the referee's "start / switch phase" signal hits the controller first, then relays wirelessly to the robot, so all four robots start to the same millisecond.

In short: the players are rocket-launch commanders in the control room — the thing actually driving is the AI burned into the brain board.

The full Qualification 127 broadcast is on YouTube (embedding is disabled — open the link to watch):

▶ Watch on YouTube (from 3952J's intro, 07:07:35)

Two moments worth watching:

07:07:35　The announcer introduces 3952J, noting they flew all the way from Taiwan; the team is doing pre-match setup and checks.

07:08:31　Qualification 127 begins: first the 15-second autonomous Isolation Period, then the Interaction Period.

Qualifiers: 3 wins, 3 losses, 2 ties — Rank 22, WP / AP / SP = 8 / 45 / 36. The arc was low-then-high: early scores were tight and stuck, but from Qualifier #107 on they clearly fixed an algorithm or hardware bottleneck on-site, going 3-1 down the stretch — including 35:6 and 19:0 blowouts.

Ranking formula: WP (win points: 2/win, 1/tie, 0/loss) = (3×2)+(2×1)=8, the primary metric; ties break on AP (autonomous points from the 15s isolation period) 45; then on SP (score points) 36.