Is MMLU-ProX still meaningful?
Status:Still useful Checked against the report, 5 November 2026
Verdict
Yes, for language gaps. It does not rank the frontier.
Why still useful: The chapter lists it as active. It shows gaps of up to 24.3% for low-resource languages.[1][1] MMLU-ProX, arXiv 2503.10497 Primary
What “Still useful” meansKnown problems
- It relies on LLM translation with expert review.[1][1] MMLU-ProX, arXiv 2503.10497 Primary
What to look at instead
The report names no direct successor.
Where it appears in the report
Chapter 1, Benchmarks
- Table 15. Multilingual and European benchmarks, November 2026 in “Go deeper: Multilingual and European benchmarks (7)”
Chapter 6, China and Asia
- Figure 13. Latin America's Flagship Model Trails Open Rivals on a Spanish Test in “Go deeper: Chart: LatamGPT on a Spanish test”
Sources
Copied from the chapter source lists. Each number links back to the source in its chapter.
- [1] MMLU-ProX, arXiv 2503.10497. It tests reasoning in 29 languages. Primary arxiv.org Chapter 1, source 165