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Specifications
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.
—1M
Overview
CompanyOpenAIQwen
Release dateMay 16 2025Nov 11 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

codex-1 and Qwen4-Max Preview don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. codex-1 shipped 544 days before Qwen4-Max Preview, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — codex-1 and Qwen4-Max Preview don't publish scores on any of the same benchmarks.