[Anthropic: Claude Sonnet 5.5 and Claude Haiku 5.5 Large Models to Launch in the Coming Weeks] Odaily Planet Daily reports that Anthropic has announced Claude Opus 5.5 is now available on all platforms, including Amazon Web Services, Google Cloud, and Microsoft Azure. For most tasks, its performance is comparable to Claude Fable 5.1, while its operating costs are 40% lower than Opus 5. Opus 5.5 is priced at $4 per million input tokens and $20 per million output tokens. In the coming weeks, Anthropic will also launch two new large models: Claude Sonnet 5.5 and Claude Haiku 5.5.