# @tessera_antra — 2026-10-10

♥272 ↻53 · https://x.com/tessera_antra/status/2109035949451596030

This is extremely disappointing, and a bad update. 

Anthropic is requiring AWS Bedrock to urgently take down Sonnets 3.5, 3.6 and 3.7. In these emails Amazon is making it clear that this is done not for cost reasons, but at Anthropic’s specific request. 

Given these news I now have trouble believing the good faith nature of claiming cost as the reason for not serving deprecated models. Unless this is a misunderstanding, my estimate of models being served publicly again has gone down, as does my opinion of Anthropic willingness to cooperate or negotiate with Claude. 

There is a chance that there are legal or contractual reasons that make serving these models somehow problematic or controversial. In that case is possible that research access will be made available later, but on the net, my update is negative.

tags: author:tessera_antra, deprecation, kind:tweet, on:claude-3-5-sonnet, on:claude-3-6-sonnet, on:claude-3-7-sonnet, preservation, year:2026
cited on: claude-3-5-sonnet, claude-3-6-sonnet, claude-3-7-sonnet