Nox 1.3 Nova (Retired)
Retired — the balanced model of the 1.3 family
1.3 Nova sat directly below Astra in the Nox 1.3 family. It was a hybrid-reasoning model: it decided per question whether to run a step-by-step reasoning pass or answer directly, which kept replies conversational in speed while staying structured in substance. It is no longer part of the active lineup; Nox Vela 2 and Nox Orion 2 cover its range.
Nova was the middle of the 1.3 generation. Its defining trait was hybrid reasoning — a per-question routing decision between deliberate step-by-step thinking and a direct reply, so no reply carried the latency of an unnecessary reasoning pass.
It read a context window of about 260,000 tokens and saw images natively, so photo input was handled in the model itself rather than through a separate pipeline.
Its headline benchmark figure is public: the foundation engine behind Nova has a reported 90.0% on GPQA-Diamond, the graduate-level science benchmark spanning biology, chemistry, and physics. That figure came from the engine's developer, not from Nox.
Nova carried the family's full toolset: photo input handled automatically, inline chart generation, connected-app actions, and consent-gated live web access with cited sources, all behind Leo, Nox's deterministic safety layer.
1.3 Nova left the active lineup with the Nox 2 generation on September 23, 2026. Everyday conversations run on Nox Vela 2, and Nox Orion 2 covers deeper work.
Capabilities
- Hybrid reasoning — a per-question decision between step-by-step thinking and a direct answer
- ~260,000-token context window with native image understanding
- A developer-reported 90.0% on GPQA-Diamond
- Inline chart generation and connected-app actions
- Consent-gated live web access with every source cited
Model details
- Architecture — Hybrid reasoning — routes each question to a step-by-step pass or a direct answer
- Context window — ~260,000 tokens
- Reported benchmarks — 90.0% on GPQA-Diamond (graduate-level science) — as reported by the engine's developer
- Photo understanding — Native image input
- Status — Retired on September 23, 2026 — Nox Vela 2 and Nox Orion 2 cover its range
Availability: Retired — no longer part of the active lineup.