Claude Opus 5.5 available on Amazon Bedrock with lower costs per task
Anthropic, together with AWS, has made Claude Opus 5.5 available on Amazon Bedrock – according to the company, it is more efficient and cheaper per task than Claude Opus 5, with adaptive thinking and stricter safety classifiers.
Anthropic, in collaboration with AWS, has made Claude Opus 5.5, the first model in the Claude 5.5 family, available on Amazon Bedrock and Claude Platform on AWS. According to Anthropic, it is the most capable model in the Opus series, designed for agentic coding, knowledge work and long-running tasks.
According to Anthropic, Claude Opus 5.5 handles the same tasks with fewer tokens than Claude Opus 5, alongside lower token prices and significantly cheaper cache reads. According to the company, this is expected to result in a lower average cost per task compared with Claude Opus 5. The source does not provide specific pricing figures or percentage comparisons.
According to Anthropic, the model is intended to communicate more clearly – while working, it provides ongoing updates on what it has done, what it has found and what it needs, which is intended to make long-running tasks easier to follow. Adaptive thinking is now always enabled, and the model decides how deeply to reason; the effort parameter replaces manual thinking budget settings. Claude Opus 5.5 is also the first model in the Opus series with safety classifiers similar to those in Claude Fable 5.1 in biology, cybersecurity and AI development, and according to the company, it will refuse requests more frequently than previous Opus versions.
The model is now available on Amazon Bedrock through US, EU, AU, JP and Global CRIS inference profiles on bedrock-runtime, as well as in the US East (N. Virginia) and AP SouthEast (Melbourne) regions on bedrock-mantle, and is accessible through Messages API, Converse API and Invoke API. It is also available through Claude Platform on AWS in North America. For exact pricing, the source points to the Amazon Bedrock pricing page; the article does not provide specific figures.
Why it matters
For companies running agentic tasks on AWS, this offers an opportunity to reduce operating costs for an Opus-level model, especially for workloads with repeated cache use and long runtimes. For individual developers, the model brings automatic control of reasoning depth through the effort parameter instead of manual settings, along with ongoing progress updates for long tasks, but also stricter refusals of sensitive requests.
Release card
Claude Opus 5.5
Anthropic
- agentic coding and longer work sessions in software development
- knowledge work with long documents and reports
- long-running tasks requiring ongoing progress updates
According to the source, it handles the same tasks with fewer tokens and at a lower average cost per task than Claude Opus 5; it is the first model in the Opus series with safety classifiers similar to those in Claude Fable 5.1.
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Two audiences, two different impacts
What this means
For individuals
According to Anthropic, developers working with long-running agentic tasks or extensive documents can expect clearer ongoing updates on model progress and less need to correct outputs, but also more frequent refusals of requests due to stricter safety classifiers.
For a business
According to Anthropic, companies running agentic tasks on Amazon Bedrock may achieve lower average costs per task thanks to lower token prices and significantly cheaper cache reads, which is particularly relevant for long-running and repeated workloads.
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