Yang and colleagues: Qwen2 open-weight multilingual language-model family

What changed

Released dense and mixture-of-experts base and instruction-tuned language models with multilingual, coding and mathematical evaluations.

Scientific scope

Released dense and mixture-of-experts base and instruction-tuned language models with multilingual, coding and mathematical evaluations. One family-level report; not one achievement per parameter size or quantization. Qwen Team and Alibaba Group appear as affiliation, not additional personal authors.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. One family-level report; not one achievement per parameter size or quantization. Qwen Team and Alibaba Group appear as affiliation, not additional personal authors.

Contributors

• Source-listed authors and technical contributors · SCIENCE: Source-listed authors or explicitly credited technical contributors for the cited versions. Family entries retain source-specific attribution; a combined list is not one original-paper byline or equal individual work. Names alone do not establish resolved identities.

• Qwen2 Technical Report
• Yang and colleagues: Qwen2 open-weight multilingual language-model family — official research record

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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