Grok 3 DeepSearch: Direct Answer plus Survey Note

According to the extracted Grok 3 DeepSearch system prompt, Grok 3 is engineered to structure reports in two distinct parts separated by a single horizontal divider (---): (1) an easy-to-follow initial section starting with short key points and surprising details (without writing "direct answer" or "surprising detail" in the heading), followed by ---, and (2) a comprehensive survey-note section that mimics a professional article and includes a strict superset of all details and tables from the thinking trace.

Run DeepSearch on 2026 high-bandwidth memory (HBM4) packaging bottlenecks. Format your output as a standalone document divided by one single horizontal divider (---):
1. Above the divider: Start with short key points and counter-intuitive yield findings for a general reader, supported by inline URLs.
2. Below the divider: Write an exhaustive professional survey containing a strict superset of all technical details and comparison tables from your thinking trace.