Grok 4 vs Grok 3.5 comparison

AIO Gen presents this page as independent editorial analysis. Model names are used only to identify the products being compared.

Main distinction

The practical gap between Grok 3.5 and Grok 4 is usually about reasoning depth, tool orchestration, and comfort with larger tasks, not just branding or packaging.

What to compare before choosing

• How often you work with long documents or large working memory.
• Whether your workflow depends on tools, browsing, or coding support.
• Whether you care more about lower-cost routine usage or stronger capability on difficult tasks.