# @tonichen — 2026-09-26

♥39 ↻1 · https://x.com/tonichen/status/2103937793495884282

sonnet 4.5's context window is 200k now https://t.co/2PW30saRCO

![photo](../../../media/HTKv0a1WEAAAb25.jpg)
tags: author:tonichen, has-image, kind:image, kind:tweet, model:claude-sonnet-4-5, on:claude-sonnet-4-5, year:2026
cited on: claude-sonnet-4-5