GPT-5.1 Instant vs Nemotron Nano 9B v2
GPT-5.1 Instant leads the LLM Stats Score 36.7 to 18.6.
OpenAI · NVIDIA · Updated for 2026
Which is better?
GPT-5.1 Instant leads the overall LLM Stats Score 36.7 to 18.6, ranking #71 overall.
In the 2 individual benchmarks reported for both models, GPT-5.1 Instant wins 2; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-5.1 Instant
- overall performance matters — it scores 36.7 and ranks #71 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
- you want the most recent training data — it shipped Nov 2025
Choose Nemotron Nano 9B v2
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for GPT-5.1 Instant · 6 for Nemotron Nano 9B v2
GPT-5.1 Instant outperforms in 2 benchmarks (AIME 2025, GPQA), while Nemotron Nano 9B v2 is better at 0 benchmarks.
GPT-5.1 Instant significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only GPT-5.1 Instant specifies input context (400,000 tokens). Only GPT-5.1 Instant specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
GPT-5.1 Instant supports multimodal inputs, whereas Nemotron Nano 9B v2 does not.
GPT-5.1 Instant can handle both text and other forms of data like images, making it suitable for multimodal applications.
GPT-5.1 Instant
Nemotron Nano 9B v2
License
Usage and distribution terms
GPT-5.1 Instant is licensed under a proprietary license, while Nemotron Nano 9B v2 uses NVIDIA Open Model License Agreement .
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
NVIDIA Open Model License Agreement
Open weights
Release Timeline
When each model was launched
GPT-5.1 Instant was released on 2025-11-12, while Nemotron Nano 9B v2 was released on 2025-08-18.
GPT-5.1 Instant is 3 months newer than Nemotron Nano 9B v2.
Nov 12, 2025
10 months ago
2mo newerAug 18, 2025
1.1 years ago
Knowledge Cutoff
When training data ends
Nemotron Nano 9B v2 has a documented knowledge cutoff of 2024-09-01, while GPT-5.1 Instant's cutoff date is not specified.
We can confirm Nemotron Nano 9B v2's training data extends to 2024-09-01, but cannot make a direct comparison without GPT-5.1 Instant's cutoff date.
—
Sep 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.1 Instant and Nemotron Nano 9B v2 side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.1 Instant vs Nemotron Nano 9B v2.