As we finish evaluating Qwen 3.5 Plus, here are our key takeaways:

• The model performs well on knowledge benchmarks, ranking #6 on GPQA Diamond, #11 on MedQA and #9 on MMLU Pro, all of which are first place ranks among Open Weight models.
• Qwen 3.5 Plus has a varied performance on our private benchmarks, ranking #30 on both the Mortgage Tax and SAGE benchmarks, but ranking #8 (and #1 among Open Weight models) on Finance Agent v1.1.
• It loses out on performance due to having a highly sensitive content filter and having issues following a strict output format. This leads to low performance on the CaseLaw (v2) and MMMU Pro benchmarks.

We evaluated Qwen 3.5 Plus on the Vals Index. Here are the key takeaways:

• Qwen 3.5 Plus places #10 overall on Vals Index (57.1% accuracy), and #3 among open-weight models.
• The model is strongest on financial tasks: it places #6 on our Corp Fin (v2) and #8 on our Finance Agent subsets.
• It is still weaker on legal and coding depth in this index mix, placing #25 on our Case Law (v2) and #17 on our SWE-bench Verified subsets.
• It lands #11 on Terminal-Bench 2.0, which keeps it competitive on agentic coding tasks.