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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.
—0.5B/1.8B/4B/7B/14B/72B
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.
128k32k
Overview
CompanyOpenAIQwen
Release dateFeb 27 2025Feb 4 2024
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

GPT-4.5 and Qwen1.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Qwen1.5 shipped 389 days before GPT-4.5, so benchmark comparisons should account for the intervening progress.

Context windows are 128k (GPT-4.5) vs 32k (Qwen1.5). GPT-4.5 is closed, while Qwen1.5 is open weight.

Direct benchmark comparisons are unavailable — GPT-4.5 and Qwen1.5 don't publish scores on any of the same benchmarks.