GPT-5.1 and fitness coach Victor
Riser

Three updates just landed:
1️⃣ New models in the list
In Pro mode you now have access to:
- ChatGPT 5.1 — for general tasks, conversations, analytics.
- ChatGPT 5.1 Codex — for code, reviews, refactoring and dev assistance.
You can choose them in the model settings and build your own pipelines.
2️⃣ AI personas upgrade
All AI personas that used to run on ChatGPT 5 have been carefully upgraded to 5.1.
No changes to their character or scenarios, but now you get:
- better reasoning,
- more stable answers,
- more accurate work with context and long queries.
3️⃣ New AI persona — fitness coach Viktor
Viktor is your practical AI coach for training at home or in the gym:
- builds personalized plans for your goal: fat loss, muscle gain, strength, endurance, 5K/10K prep;
- runs a quick health screening (PAR-Q style), flags potential risks and suggests when to get medical clearance;
- takes into account equipment (from “just a mat” to a full gym), experience, back/joint limitations, schedule and stress level;
- gives structured workouts: warm-up, 4–8 exercises, sets/reps, RPE/RIR, rest, cool-down;
- suggests at-home alternatives, load progression and simple recovery rules.
You can already open the catalog, find Viktor and try building a plan for your goals — from “fit into my jeans by summer” to “run my first half marathon.”