Anthropic confirms Sonnet 5.5 and Haiku 5.5 are coming in the next few weeks
Anthropic (via r/singularity, r/ClaudeAI)·medium signal
The Opus 5.5 release page says Claude Sonnet 5.5 and Haiku 5.5 will follow 'in the coming weeks' with many of the same gains in performance, efficiency and safety. A 111-upvote r/ClaudeAI post ('haiku is back') and an 81-upvote r/singularity post both picked up on it. Teams running Haiku or Sonnet in high-volume pipelines should expect a cheaper tier upgrade soon.