AWS adds Claude Haiku 5.5 to Bedrock for subagents
AWS has announced the availability of Claude Haiku 5.5 on Amazon Bedrock and the Claude Platform on AWS. According to Anthropic, this model is the fastest and most efficient in the Claude 5.5 family, designed specifically for subagents and high-volume, cost-sensitive workloads. The company states that Haiku 5.5 costs around 75 percent less than Claude Haiku 4.5 for most tasks.
Key points
- Claude Haiku 5.5 is available on Amazon Bedrock and Claude Platform on AWS.
- Anthropic reports the model costs around 75 percent less than Claude Haiku 4.5.
- It is the first Haiku model with effort controls to tune cost against intelligence.
The model introduces effort controls, allowing developers to tune cost against intelligence for individual tasks rather than using a single setting for entire workloads. It is positioned as a companion to Claude Opus 5.5, where Opus handles complex planning and judgment while Haiku executes well-defined, high-volume tasks like routing requests, code review, and document classification. This pairing aims to reduce latency and cost for routine operations while maintaining high reasoning quality for complex problems.
The model is available today across multiple AWS regions, including US, EU, AU, and JP Geo CRIS profiles, as well as Global CRIS. It supports standard AWS controls such as IAM for access, CloudTrail for audit, and CloudWatch for monitoring. Developers can access the model via the Amazon Bedrock console, the AWS CLI, or the Anthropic SDK, with usage appearing directly on AWS bills.
Model page: Claude Opus 5.5 →
The story so far
5 episodes →- AWS adds Claude Haiku 5.5 to Bedrock for subagentsthis story
Introducing Claude Haiku 5.5 on AWS
AWS Machine Learning Blog · 7 October 2026
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