For coaches and trainers

Your method, as an agent. Your roster, run by chat.

Agents4 Fitness turns how you coach into an AI agent that coaches your clients by your rules. Build it in Claude, in ChatGPT or in the app. Then ask it about any client and change one plan, or a whole group's, in a sentence: remove equipment that's gone, add a meal, swap an exercise. Free for 14 days with up to 5 clients. No card needed.

What you can do by chat

• Ask about any client: “How's Sarah doing this week?” Your agent answers from her logged sessions, check-ins, nutrition and watch data, and tells you who on your roster needs you first.
• Change a plan in a sentence: A client trains at home now: remove the cable machine and every exercise that needs it is swapped for one that doesn't. Add a meal, swap a food, move a training day or shift calories and macros, and the day re-portions to match.
• Change a whole group at once: Put clients in a group (a gym, a team, a challenge) and one message changes every plan in it: remove equipment that's out of order, swap an exercise or add a meal. You see the preview first, and each client keeps their own sets and reps.
• Nothing changes until you say yes: Ask for a plan change or a message to clients and you see it first; it goes when you say yes. Day to day, each client runs the way you choose: Full Auto, Review First or Approve Each.

From Claude or ChatGPT (Architect plan) a group change goes further: add or remove exercises, rewrite a session, or shift calories, macros and foods for everyone in the group.

Examples

• Ask about a client (Coach Assistant · in the app): “How's Sarah doing this week? Anything I should jump on?” Sarah logged 4 of her 5 sessions and hit her protein target 5 days out of 7. Thursday's check-in mentions her left knee on lunges, and her sleep has averaged about six hours.
• Remove equipment (Coach Assistant · in the app): “Jamal is training at home for a while, no cable machine. Swap out everything in his plan that needs it.” That changes four exercises in two of Jamal's sessions. Each one is swapped for the closest move that doesn't need cables, with his sets and reps kept: triceps pushdown becomes overhead triceps extension, cable lateral raise becomes dumbbell lateral raise. Apply it?
• Add a meal (Coach Assistant · in the app): “Add an evening snack after dinner to Maya's training days: 200 g of Greek yogurt and 80 g of blueberries.” That adds an evening snack after dinner on Maya's training days: 200 g Greek yogurt and 80 g blueberries. Her daily targets stay the same, so her other meals are re-portioned around it. Apply it?
• Change a whole group (Coach Assistant · in the app): “The leg press at Powell St is out of order. Take it out of the plans for that group.” Preview: the leg press comes out of 14 plans in your Powell St group, from now on. Each client gets the closest lift that doesn't need it, a barbell back squat here, and keeps their own sets and reps. Apply it?
• Build an agent (Claude · connected to Agents4 Fitness): “Here's my 12-week hypertrophy program. Build my coaching agent from it, exactly as written.” I've read the program and built your agent from it: the split, the progressions and the nutrition days, as written. It's saved in your workspace as a draft, so nothing reaches a client until you put it live.

Three ways to build your agent

• In Claude — Hand it your program: Connect Agents4 Fitness to Claude, give it your program and say “build my coaching agent from this, exactly as written.” The agent is created in your workspace as a draft, not left in a chat transcript. (Architect plan.)
• In ChatGPT — Use the AI you already use: The same connector works in ChatGPT: sign in with your Agents4 Fitness username and password, approve, and upload the PDF. Code editors such as Claude Code and Cursor connect with an API key. (Architect plan.)
• In the app — Agent Studio, on every plan: Start from a template or a blank page, or import what you already have: paste your notes, upload a PDF, Word or Excel file, or a screenshot of a plan. Add videos and voice notes, test it, then put it live. (Every plan, and the free pilot.)

Your programs stay in your workspace. Clients are coached by your agent; they never see or download the files you built it from. How to connect ChatGPT or Claude.

You decide how much it does alone

Not replacing coaches. Multiplying them. For check-in replies, each client runs in the mode you choose:

• Full Auto: Your agent replies to a client's check-ins on its own, by the rules you set.
• Review First: The AI drafts the reply and you get a window to edit or stop it before it sends.
• Approve Each: You review and edit each reply before it goes.

Plans

Every new coach starts with a free 14-day pilot: up to 5 clients, AI coaching on, no card needed. Every plan includes Agent Studio, the AI agent builder, and AI coaching for your clients.

Questions coaches ask

How do I build my agent?

Three ways. In the app, Agent Studio walks you through it: start from a template or from scratch, or import what you already have by pasting your notes, uploading a PDF, Word or Excel file, or a screenshot of a plan. You can add YouTube links, videos and voice notes, test the agent, then put it live. That is included on every plan and in the free pilot. On the Architect plan you can also connect ChatGPT or Claude, hand over your program and ask it to build the agent; it is created in your workspace as a draft.

Can I really change a client's plan by chat?

Yes. Tell the Coach Assistant what should change: remove equipment when a machine is out of order or a client trains at home (every exercise that needs it is swapped for one that doesn't), add a meal, swap an exercise or a food, add or remove an exercise, change sets or rest, move a training day, or shift calories and macros. It shows you the change, applies it when you say yes, and the client sees it in their app. For a group, one message removes equipment, swaps an exercise or adds a meal in every plan in the group, and keeps each client's own sets and reps.

What can I ask it about my clients?

Anything you would ask an assistant coach who had read every log: how a client's week went, who missed sessions, what a check-in said, who needs attention first. It answers from that client's logged workouts, check-ins, nutrition and watch data.

Does the AI talk to my clients without me?

Only as far as you allow. Each client runs in the mode you choose. Full Auto: your agent replies to check-ins on its own, by your rules. Review First: the AI drafts and you get a window to edit before it sends. Approve Each: you review and edit each reply before it goes. You can change the mode for any client at any time.

Which AI apps can I connect?

ChatGPT and Claude, on the Architect plan. You add Agents4 Fitness as a connector in the AI app, sign in with your Agents4 Fitness username and password, and approve the connection. Code editors such as Claude Code, Cursor and VS Code connect with an API key. The step-by-step guide is at agents4fitness.com/help/connect-ai.

What happens to my programs and methods?

They stay yours, in your workspace. Clients are coached by your agent through the product; they never see or download the files you built it from.

What does it cost?

Every new coach gets a free 14-day pilot with up to 5 clients and AI coaching switched on, no card needed. After that: Solo is $29/mo for up to 15 clients, Studio is $79/mo for up to 75, and Architect is $199/mo for unlimited clients plus connecting ChatGPT and Claude and the Analyst. Annual billing is available on each plan.

More for coaches

• Your channel answers. You get paid
• Your coaching method, working around the clock
• Tell your agent what changed. It does the work
• AI-built cohorts for your whole gym
• Turn your existing materials into working agents

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