Anthropic expands Claude's context window from 9K to 100K
Claude's context window expanded from 9K to 100K
Why it matters
The starting gun for the long-context race; made feeding in whole documents without RAG a real option
Source — Primary sources first; secondary reports are labelled “Press”
Officialanthropic.comhttps://www.anthropic.com/news/100k-context-windowsAdded in Week 35, 2026 · See that week