FitGenius
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Powered by LangGraph · Supports GPT-4o, Claude, Grok & more

Your AI health coach, available 24/7

Get instant, personalized health advice across nutrition, fitness, sleep, hydration, and more — all through a natural conversation with your own private AI coach.

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FitGenius Chat
Plan a 4-day workout for a beginner with weight loss goals

Here's your personalized 4-day plan:

🏃 Monday: Cardio + Core (45 min)

💪 Wednesday: Full Body Strength (40 min)

🚴 Friday: Low-impact Cardio (50 min)

🧘 Saturday: Yoga + Flexibility (30 min)

Est. 1,200 kcal/week burned

What should I eat on my rest days?
On rest days, focus on recovery nutrition — slightly lower calories but keep protein high (0.8g per lb bodyweight). Great options: Greek yogurt, eggs, leafy greens, and salmon...

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Specialized AI Tools

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Everything you need to live healthier

9 specialized AI tools working together in one seamless conversation.

Workout Planner

AI-generated weekly workout schedules tailored to your fitness level, available equipment, and specific goals.

Nutrition Analyzer

Real-time food nutrition data powered by the USDA database — calories, protein, carbs, fats, and micronutrients for any meal.

Calorie Tracker

Log meals with natural language and track macros daily — your AI handles the math while you focus on eating well.

Goals Tracker

Set weight, strength, and wellness milestones. Track progress over time with smart reminders and motivational insights.

Progress Reports

Weekly and monthly AI health summaries based on your tracked data, highlighting wins and areas to improve.

Heart Rate Zones

Calculate precise training zones using the Karvonen formula for fat burn, cardio endurance, and peak performance.

Sleep Analyzer

Personalized sleep quality scoring and science-backed improvement tips to help you recover better every night.

Hydration Guide

Precise daily water intake recommendations based on your weight, activity level, and climate conditions.

BMI Calculator

Instant body mass index with personalized health categories and evidence-based recommendations tailored to your body type.

Why choose FitGenius?

Most health apps give you generic charts and meal plans that ignore who you actually are. FitGenius connects the dots between your data, your goals, and science-backed guidance — all through conversation.

  • No generic advice — every response is personalized to your body and goals
  • Real nutritional data from the USDA FoodData Central database
  • Bring your own AI key — no hidden billing or subscription lock-in
  • Works with 6 AI providers including GPT-4o, Claude, and Grok
  • Conversation history saved so your coach always has context
  • Built on LangGraph — structured, reliable AI reasoning for health

Supported AI Providers

Groq

Llama 3.3, Mixtral

Free tier

OpenAI

GPT-4o, GPT-4o mini

Popular

Grok

Grok-3, Grok-3 mini

Fast

Claude

Opus, Sonnet, Haiku

Smart

Gemini

2.0 Flash, 1.5 Pro

Free tier

Kimi

k2.5, moonshot-v1-128k

Long ctx

Start chatting in 4 simple steps

No technical setup. No credit card. Just sign up and go.

01

Create your free account

Sign up in seconds with email or Google. No credit card required — ever.

02

Set up your health profile

Share your goals, activity level, dietary preferences, and current stats. The more you tell us, the smarter your coach becomes.

03

Configure your AI model

Pick your preferred AI provider (Groq, OpenAI, Grok, Claude, Gemini, or Kimi), paste your API key, and you're ready. Most providers have a free tier.

04

Chat with your AI coach

Ask anything in plain English — from "what should I eat for muscle gain?" to "build me a 5-day workout plan" — and get instant, personalized answers.

Create your free account

Frequently asked questions

Everything you need to know before getting started.

Is FitGenius really free?
FitGenius is free to use — you bring your own AI API key (Groq, OpenAI, Grok, Gemini, Claude, or Kimi). Most providers offer a generous free tier. We never charge for the platform itself.
How does the AI personalization work?
When you fill in your health profile (age, weight, goals, activity level), every response is tailored to your specific situation. The AI remembers your context across conversations.
Is my health data private?
Yes. Your data is stored securely in your personal account and never shared or sold. Your API key is stored in your browser only — we never persist it on our servers.
Which AI providers are supported?
FitGenius supports Groq (Llama), OpenAI (GPT-4o), Anthropic (Claude), Google (Gemini), xAI (Grok), and Moonshot (Kimi). Choose the provider and model that works best for you.
Can I use FitGenius on mobile?
Absolutely. FitGenius is fully responsive and works great on any device — phone, tablet, or desktop — straight from your browser.

Ready to transform your health?

Bring your own AI key and start chatting with your personal health coach today. No subscriptions, no hidden fees.

Start for free — no credit card

Get in touch

Have a question, feedback, or a partnership idea? I'd love to hear from you. Reach out and I'll get back to you as soon as possible.

Email

tofayelahmmedbabu02@gmail.com

I typically reply within 24 hours.

Feedback & Feature Requests

Got an idea to make FitGenius better? I actively read every message and prioritize features based on user feedback.

Partnerships & Collaborations

Interested in integrating FitGenius into your platform, gym, or wellness app? Let's talk.

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