Claude Haiku 5.5 is now available on Amazon Bedrock and the Claude Platform on AWS, delivering faster, more cost-efficient performance with regional data residency and integrated AWS controls.

Availability spans multiple regions including US, EU, AU, JP, and Global CRIS on bedrock-runtime, with GovCloud support on bedrock-runtime and bedrock-mantle; Claude Platform on AWS provides unified billing, authentication, and native platform access.

Haiku 5.5 is billed as Anthropic’s most capable Haiku model yet, introducing cost-versus-performance controls for tuning per task, and excels in coding, tool use, knowledge work, NLP tasks, and high-volume interactive applications.

When paired with Claude Opus 5.5, Opus handles planning and complex reasoning while Haiku 5.5 executes fast, scalable subactions, enabling parallel subagent operations and cost/latency benefits.

Sample code is provided for invoking Claude Haiku 5.5 via Bedrock Runtime (invoke_model and converse), including an example using theAnthropic SDK for a streamlined experience.

Users are directed to Getting Started notebooks, CloudWatch monitoring, and AWS Cost Explorer to monitor usage, performance, and costs.