Introducing Claude Haiku 5.5 on AWS
Claude Haiku 5.5 is now available on Amazon Bedrock and Claude Platform on AWS. According to Anthropic, it is the fastest, most efficient model in the Claude 5.5 family, built for subagents and high-volume, cost-sensitive work, and costs around 75% less than Claude Haiku 4.5 for most tasks. This post covers its improvements and how to get started.
Today, Amazon announced Claude Haiku 5.5 on AWS Bedrock and Platform. Anthropic claims Haiku 5.5 is the fastest and most efficient in its family for subagents and high-volume tasks. It costs about 75% less than Haiku 4.5 for most workloads. Bedrock offers Haiku 5.5 with data staying within AWS infrastructure. It integrates with AWS controls like IAM, CloudTrail, CloudWatch, and Guardrails.
Usage appears on the AWS bill. Claude Platform provides a native Anthropic experience through AWS Management Console for building, testing, and deploying. Haiku 5.5 is the most capable Haiku model, excelling at coding, tool use, computer use, and agentic tasks. It has effort controls to balance cost and intelligence per task. Haiku 5.5 is fast for quick, repeatable work and handles high-resolution images.
It serves as a review subagent for Opus 5.5, which handles complex reasoning. Together, they leverage each model's strengths. To use Haiku 5.5 on Bedrock, access the Bedrock console, choose Test > Playground, and select Haiku 5.5. Programmatic usage requires Amazon Bedrock access, AWS CLI, Python 3.10+, Boto3, the Anthropic SDK, the Amazon Bedrock Token Generator, and IAM permissions for bedrock:InvokeModel. A Boto3 example shows invoking Haiku 5.5 with the InvokeModel API.
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