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Anthropic announces Claude Opus 5.5 available today

Anthropic's official account announced that Opus 5.5 is now live, with a link to the announcement.

Anthropic
@AnthropicAIArchived 2026.09.23Originally posted 2026.09.23
Anthropic @AnthropicAIOriginally posted 2026.09.23
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Claude Opus 5.5 is available today. https://t.co/lSCmTYw9eJ

This post quotes another post: “Anthropic releases Claude Opus 5.5 model”

x.com/anthropicai/status/2102435703535939725Archived 2026.09.23 10:43