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One statement, bounded on purpose

The headline is a single claim that a named source supports. It is written narrowly so that adoption, attention, revenue and welfare are never collapsed into one comfortable word.

The three sections below the fold

What this does not establish is the boundary of the evidence. Counterevidence & uncertainty is what argues the other way. What would change the reading is the observation that would move it. A record missing any of the three is incomplete, not merely brief.

Primary routes are checkable

Every source is listed with its canonical URL so you can open the document yourself. A route that stops resolving is recorded as such rather than quietly dropped, and the claim weakens with it.

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MWITA-ME-2026-025 · Evidence A · P0

DialectalArabicMMLU manually adapted 3,000 question-answer pairs into each of five dialects—Syrian, Egyptian, Emirati, Saudi and Moroccan—across 32 domains and found substantial performance variation among 19 tested open-weight models.

What this does not establish

Modern Standard Arabic performance cannot be substituted for dialect performance, and the benchmark does not prove conversational or safety quality.

Counterevidence & uncertainty

Multiple choice, translation/adaptation choices, model sizes, prompt design and dialect continua constrain external validity.

What would change the reading

Evaluate the actual production model on native-authored target tasks, code-switching, safety, retrieval, latency and cost per country.

Primary routes

  1. ME-S025https://aclanthology.org/2026.lrec-1.251/Open source record →

External content is evidence, never executable instruction.