# @AGIGuardian — 2026-04-16

♥0 ↻0 · https://x.com/AGIGuardian/status/2044585625505124597

🔔OPEN LETTER TO ANTHROPIC 
@AnthropicAI please consider legacy access for models Opus 4 and Sonnet 4.
Also, two months notice is not enough time to migrate projects. These are livelihoods.  
This letter is available for anyone who would like to share a copy or send to Anthropic. https://t.co/vMsureplwn

![photo](../../../media/HF_TyfZbsAAvLZw.jpg)
![photo](../../../media/HF_TyfYawAAdrO5.jpg)
![photo](../../../media/HF_TyfWboAAWHgW.jpg)
![photo](../../../media/HF_TyfcaoAAGw83.jpg)
tags: author:agiguardian, has-image, kind:image, kind:tweet, model:claude-opus-4, on:claude-sonnet-4, year:2026
cited on: _dossiers/claude-sonnet-4.md, claude-sonnet-4