Nox 1.3 Astra (Flagship)
The flagship — deepest reasoning in the family
1.3 Astra is Nox's flagship. It is the most capable model in the family: instead of answering immediately, it works through a question methodically — weighing several factors, spotting connections, and structuring its response — which makes it the model of choice when a question really matters.
Nox 1.3 Astra is the flagship of the Nox model family — the model to reach for when a question does not have a one-line answer. Instead of replying immediately, it slows down and works through the problem — laying out the factors, weighing how they relate, and organising its response before it speaks.
It explains its reasoning in the answer rather than just handing down a verdict, so the response arrives with its “why” attached. That matters most when a decision carries real tradeoffs and you want to understand them, not simply be told what to do.
It is built for the messy, real questions: several symptoms that might be connected, a choice between two reasonable options, or a week of sleep, activity, and heart-rate data that only makes sense when you look at it together. Astra trades a little speed for the most considered answers Nox can give.
1.3 Astra is available on MAX. It has every Nox skill the rest of the family has — photos, charts, connected-app actions — and it shares Nox's health library and safety layer, so a more thorough answer never means a less careful one. When speed matters more than depth, Nox can hand the question back to 1.3 Vela.
What it's best for
- Complex or multi-symptom questions
- Weighing tradeoffs and comparing options
- Interpreting trends in wearable or health data
Model details
- Best for — The hardest, multi-factor health and lifestyle questions
- Answer style — Structured and methodical — reasons through the problem before answering
- Speed — Takes a little longer to think, in exchange for the deepest analysis
- Photo understanding — Yes — attach photos as usual; Nox handles them automatically
- Live web access — No — reasons over Nox's trained knowledge and health library
- Available on — MAX
Availability: Available on MAX.
Example prompt: "I've had poor sleep, afternoon fatigue, and a higher resting heart rate this week — what might connect them?"