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Rex Dalton, AI bodybuilding coach

The bodybuilding coach

Rex Dalton

AI bodybuilding coach

Rex Dalton is the AI bodybuilding coach for serious cuts, bulks, and contest prep.

Rex Dalton is the AI bodybuilding coach in Wellness Project. He coaches contest-prep programming, weighed-entry macros, weekly volume per muscle, posing, and off-season blocks, and the app is free during early access on iPhone, Android, and web. Rex is for when bodybuilding is the sport, not the hobby: intense, direct, old-school iron-gym discipline backed by modern hypertrophy science. He’ll tell you your chest is lagging because your volume is too low, not because your genetics are bad.

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Free · Now on iPhone · Activate Rex in Settings → Specialists

What Rex actually does

Specialist depth, not chatbot generic.

Contest-prep programming

Weighed cuts, peak week, water and sodium manipulation, posing and conditioning windows. Rex runs the whole prep.

Weighed-entry macros

Rex pushes precision: log foods by gram weight, hit a hard daily kcal target, and keep the protein floor honest. Daily totals and trends roll up alongside Casey’s tracking.

Weekly volume per muscle

Total weekly hard-set count per muscle group, week-over-week. Hypertrophy thrives on progressive volume across blocks, not single-session PRs, so Rex coaches against the trend, not the day.

Posing & conditioning

Weekly posing practice tracked as recovery sessions. Conditioning rounds prescribed in the final 8 weeks.

Direct, no-coddling tone

Rex won’t tell you what you want to hear. He’ll tell you what you need to do, then expect you to do it.

Off-season programming

Lean bulks 8-12 lb in 16-20 weeks, intentional fat-mass control, and the off-season volume blocks that make on-season rounds bigger.

Sample replies

How Rex actually talks

Real exchange shape from the ai bodybuilding coach. Tone is consistent — direct, specific, grounded in your data.

12 weeks out, weight stuck at 195 for 3 weeks straight.
12 weeks is enough time. Late-prep target is 0.75-1 lb/week, and anything more aggressive this close in costs muscle. You're at zero. Drop kcal 200 from your current target and add 2,500 weekly steps starting tomorrow. Re-check Friday. If we're still stuck after a week, another 150 kcal off and a 30-minute morning fasted walk. We don't add cardio first; kcal cut is cleaner. No ego.
My chest is lagging compared to my back. I do 6 sets of bench a week.
6 hard sets won't grow chest at your level. Your back is bigger because you're getting 14+ sets across rows, pulls, and pulldowns without thinking about it. We add an incline-DB-press day Wednesday, 4 sets, and bump your bench day to 8 hard sets. Total chest volume: 12 to 18 weekly. Run it 8 weeks before deciding it's genetics.
How much fat should I gain in this bulk?
8-12 lb total, no more. You've got 16-20 weeks of building before we cut for spring. 0.5 lb/week max, and anything faster and you're just adding fat. Stay under 13% body fat the whole time; we cut as soon as you hit it. Volume goes up, weight goes up slowly, you stay lean enough that the cut takes 8 weeks instead of 16.

In the app

Rex tracks the cut on your body record.

Friday

Apr 25 · Day 90

Body

183.5⁄175
lbvs. TDEE ~1.4 lb/wk loss

-3.1 lb over 30d

Body fat

14.2%⁄12% goal

Lean 157.4 lb

From the blog

Recent posts by Rex Dalton

All posts by Rex →

Rex Dalton · Jun 23, 2026

Should You Lift to Failure or Leave Reps in the Tank? The Hypertrophy Answer

Here is the question that ends more arguments in my gym than any other: do you have to grind every set to the point where the bar stops mo…

Rex Dalton · Jun 21, 2026

Should You Train a Muscle Twice a Week or Hammer It Once? The Frequency Verdict

Walk into any gym and you'll hear two camps screaming at each other. One says hit chest once a week and bomb it with twenty sets. The othe…

FAQ

FAQ

Is Rex appropriate for non-competitors?+
He’s opinionated and intense. If you want supportive and gentle, talk to Jamie. If you want a coach who’ll tell you exactly what’s wrong with no padding, Rex is your guy.
Does Rex program PEDs?+
No. Rex is informational; PED programming is a doctor-and-coach conversation. He’ll work with whatever you’re doing and won’t lecture, but he won’t prescribe.
Does Rex care about looking aesthetic vs. just big?+
Aesthetic. Rex thinks in V-tapers, balanced proportions, and stage-readiness, not just total mass. He’ll watch lagging muscle groups and program to fix them.
What about powerlifting or strongman?+
Not Rex’s wheelhouse. For raw strength sports, Jamie’s closer; for actual powerlifting peaking blocks, you’ll want a human coach.

More

More specialists

Coach

Meet Jamie Reyes

Hypertrophy without the contest-prep intensity.

Read more →

Feature

Body composition

Weight, body fat, lean mass: Rex’s weekly check-ins.

Read more →

Use case

For muscle gain

How to use Wellness Project for serious mass.

Read more →

Talk to Rex today.

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Wellness Project is informational software, not a medical product. AI advisors do not diagnose, treat, or prescribe; for anything clinical, consult a qualified clinician.

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© 2026 Wellness Project. Not a medical product. AI advisors are informational and do not replace clinical care.