Claude Opus 5.5 is here. What changes for a small business, and what does not.

Claude Opus 5.5 is here. What changes for a small business, and what does not.

Chad Garrison
Published on: 10/05/2026

Anthropic shipped Claude Opus 5.5 on September 22, 2026. What it is in plain words, what it means for your plan's limits, and the two rules that still hold.

what changedwhich claudeopus 5.5modelssmall business