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Specifications
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality.
70B—
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider.
128k128k
Overview
CompanyNVIDIAOpenAI
Release dateOct 15 2024Feb 27 2025
AccessOpen WeightClosed
Model detailsView modelView model

Frequently asked questions

Llama 3.1 Nemotron 70B and GPT-4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Llama 3.1 Nemotron 70B shipped 135 days before GPT-4.5, so benchmark comparisons should account for the intervening progress.

Context windows are 128k (Llama 3.1 Nemotron 70B) vs 128k (GPT-4.5). Llama 3.1 Nemotron 70B is open weight, while GPT-4.5 is closed.

Direct benchmark comparisons are unavailable — Llama 3.1 Nemotron 70B and GPT-4.5 don't publish scores on any of the same benchmarks.