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An afternoon wrestling with a messy report. A meeting that should have been an email. The kind of focused, thinking-heavy work that fills most knowledge jobs. Anthropic says its newest model, Claude Sonnet 5.5, is built for exactly that, and it is now live on Amazon's AI platform.
What is actually new
Anthropic announced that Claude Sonnet 5.5 is available in two places on AWS: through Amazon Bedrock and through the Claude Platform on AWS. Quick translation if neither name rings a bell.
Amazon Bedrock is Amazon's cloud-based hub for AI models. Think of it as a library where businesses pick which AI to plug into their own apps and workflows, without building one from scratch. The Claude Platform on AWS is Anthropic's own Claude interface running on Amazon's cloud, basically the same Claude you may already use, hosted on AWS.
According to the announcement, Sonnet 5.5 is positioned as a "smarter, more efficient" version of Anthropic's mid-tier Sonnet line. The two big claims: faster responses and a lower cost per task. Both come from Anthropic, and the announcement does not include specific numbers, so I cannot tell you exactly how much faster or cheaper. The company says these gains matter most when the model handles focused coding or knowledge work.
What "coding and knowledge work" actually means
You will hear those phrases constantly in AI news. Both deserve a quick translation.
- Coding work: helping write, debug, refactor, or explain code (the step-by-step instructions computers follow). It can range from a developer fixing a broken function to a small-business owner writing a simple automation.
- Knowledge work: the kind of job that lives mostly in your head, like analyzing documents, drafting reports, summarizing meetings, researching a topic, or writing emails. The parts of office work where you are thinking, not typing the same thing twice.
According to Anthropic, Sonnet 5.5 is tuned to do well on focused, single-purpose tasks rather than trying to be everything at once.
Wrap-up
Claude Sonnet 5.5 is on AWS, and Anthropic says it focuses on coding and knowledge work at lower cost and faster speed. The announcement does not include specific numbers, so "faster" and "cheaper" are claims worth testing yourself. If your team already uses Bedrock, ask your IT folks whether Sonnet 5.5 is worth a pilot on a recurring task, like summarizing the weekly report you have been stitching together by hand.