
Published May 23, 2026
by Grant Paling. It’s a new world. AI - particularly of the generative variety - is everywhere. We don’t google any more, we ask ChatGPT.
The companies that are doing well right now are the ones turning this from a gimmick or a parlour trick into a set of actionable, value-added use cases.
The world of AI multisport coaching was waiting for this to get to a certain point and I believe we have now reached that point. I’m speaking here as a user, not as an employee of AI Endurance, I am not. When Markus and I started up our partnership, my promise to him was to bring to you all a view from the athlete’s side. What is it really like to use an AI coach?

Regularly interacting with your AI Endurance “Coach” has never been easier
If you’ve followed my experiences the last couple of years, first of all thank you. I just write about my experiences as I go and I thank you for taking the time to read my rambling musings. I should note that AI writes 0% of my blogs. What triggered me to say this is that I cannot imagine AI using the phrase “rambling musings”. Or wasting a whole other sentence to write that thought about the thought out. Now where was I…
The experience. And the experience is changing. It’s getting more and more interactive. Key to this is using the Chat feature of AI Endurance and I find myself using it more and more.
I attribute this to a few things:

Recovery check-ins are now much more tailored and interactive with chat
Chat has been part of the experience all along - first by making AI Endurance available not just as an app but something you could integrate with your preferred GenAI interface (ChatGPT, Gemini etc.) from day one. Then it was integrated within the app so you didn’t need to leave the app (because many of us aren’t quite there yet where we are using one AI assistant to coordinate our lives - but if you are, it’s ready for that!). And now, the chat becomes not only a feature in the app but central to the AI Coaching experience, which is where it was going all along.
Here’s a few recent examples from my own playing with it.
Daily Check-In. The old check in was ok as a summary but never really differed much. Now - every day is more like a quick conversation with your coach. How are you doing? How are you feeling? Here is what is coming up tomorrow, do you feel ready? Already done - here’s what you should think about to maximise your recovery for the rest of the day.

The AI coach doesn’t just give you a blanket summary, it now asks follow up questions
I have other apps (I won’t name them) and I have also tried another app or two just on a free trial and I can tell you that the AI Endurance experience is a proper AI coaching experience. It’s AI that the app is built around, not just a bolted-on AI function that gives you a generic summary and rehashes what you already told you about your work out in slightly different words!
Race planning. I’ve long wanted this from AI Endurance and tried it before, and it worked ok. But now it isn’t a single summary with some rough targets, it’s a conversation. It’s a sounding board and that is what so many people need when they are in the lead up to a race (especially an “A” race). Let’s see where this goes next, I’ve made some requests about what I want to see. If you’re an AI Endurance user, why not use the AI Endurance forum and give your thoughts on this topic?
General questions. When I say general, I don’t mean asking it the meaning of life. I mean general questions about my data. Check out this one…

The age of AI is here. You can be afraid of it, you can try and ignore it – or you can embrace it. I for one, am getting a lot out of it. And I hope you will too. Let’s put those robots to work!

by Markus Rummel. We present the first results of AI Endurance's new capability to calculate Respiration Frequency (RF) from in-activity heart rate variability (HRV) data. RF demonstrates its potential in assessing the validity of HRV threshold determination.

If you do not want to use Zwift or other virtual platforms, you can simply execute your AI Endurance cycling workouts by letting your Garmin control your smart trainer. For example, let your Garmin Edge 530 or Forerunner 945 control your Wahoo Kickr trainer. All smart trainers supporting the ANT+ FE-C protocol, including Tacx, are supported.

by Markus Rummel. At AI Endurance, your optimized training plan has always been built on data — not guesswork. We start by crunching the numbers: analyzing your recovery, availability, and long-term progression to create an efficient, evidence-based plan.

by Markus Rummel. DDFA (Dynamical Detrended Fluctuation Analysis) is a new method to analyze the changes in your HRV data during exercise. It is an evolution of the DFA analysis based on the research in [1, 2] used by AI Endurance.