Key takeaways
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Claude Haiku 5.5 is the fastest and most efficient model in the Claude 5.5 family.
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Built for subagents and high-volume, latency-sensitive tasks at production scale.
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Pairs with Claude Opus 5.5 for agentic workflows-Opus plans, Haiku executes.
Claude Haiku 5.5 is now available on Amazon Bedrock and Claude Platform on AWS. According to Anthropic, Haiku 5.5 is the fastest and most efficient model in the Claude 5.5 family, and costs around 75% less than Claude Haiku 4.5 for most tasks. Built for subagents and high-volume, latency-sensitive work, itis the most capable Haiku model across coding, tool use, computer use, and agentic tasks-and the first Haiku with effort controls, so you can tune cost against intelligence for each task.
The improvements stand out on quick, repeatable work at scale. Haiku 5.5 pulls key information from documents, answers questions over a knowledge base, and handles classification, summarization, and text generation at production volume and cost. It also supports high-resolution images and multi-step tool use, making it a strong computer use subagent for repetitive browser and desktop tasks.
As organizations work to implement and scale AI, AWS continues to expand its certification portfolio to meet growing demand for AI expertise.
Haiku 5.5 pairs naturally with Claude Opus 5.5: Opus plans and makes the judgment calls, while Haiku carries out well-defined tasks quickly and at scale. Access Claude Haiku 5.5 through Amazon Bedrock or Claude Platform on AWS. For a full walkthrough, read more about Claude Haiku 5.5 on AWS.
Claude Haiku 5.5 on AWS
Claude Haiku 5.5 shows improvement in the following areas:
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Most capable Haiku model-excels across coding, tool use, computer use, and agentic tasks, with effort controls to tune cost against intelligence for each task.
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Fast subagent layer-handles routing, classifying, summarizing, rewriting, and applying small changes across many files to keep larger coding and agent workflows moving.
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Pairs with Opus 5.5-Opus plans and makes the judgment calls; Haiku carries out well-defined tasks quickly and at scale, giving you careful reasoning where it counts and lower cost everywhere else.
How to access Claude Haiku 5.5 on AWS
Dive deeper
Visit Anthropic's Claude in Amazon Bedrock product page for more detailed information on Claude Haiku 5.5, Claude Sonnet 5.5, Claude Opus 5.5, Claude Fable 5.1, Claude Opus 5, Claude Sonnet 5, Claude Fable 5, Claude Opus 4.8, Claude Opus 4.7, Claude Sonnet 4.6, Claude Opus 4.6, Claude Haiku 4.5, Claude Sonnet 4.5, Claude Opus 4.5, Claude Opus 4.1, and Claude Sonnet 4.
October 07, 2026: This article has been updated to reflect the availability of Claude Haiku 5.5.
September 28, 2026: This article has been updated to reflect the availability of Claude Sonnet 5.5.
September 22, 2026: This article has been updated to reflect the availability of Claude Opus 5.5.
September 1, 2026: This article has been updated to reflect the availability of Claude Fable 5.1.
July 24, 2026: This article has been updated to reflect the availability of Claude Opus 5.
June 30, 2026: This article has been updated to reflect the availability of Claude Sonnet 5.
June 9, 2026: This article has been updated to reflect the availability of Claude Fable 5.
May 28, 2026: This article has been updated to reflect the availability of Claude Opus 4.8.
February 17, 2026: This article has been updated to reflect the availability of Claude Sonnet 4.6.
February 5, 2026: This article has been updated to reflect the availability of Claude Opus 4.6.
November 24, 2025: This article has been updated to reflect the availability of Claude Opus 4.5.
October 15, 2025: This article has been updated to reflect the availability of Claude Haiku 4.5.
September 29, 2025: This article has been updated to reflect the availability of Claude Sonnet 4.5.
August 5, 2025: This article has been updated to reflect the availability of Claude Opus 4.1.