Claude Haiku 5.5
As previously promised, here's Anthropic's new fast, low cost model: Introducing Claude Haiku 5.5.
Key points
- My Claude Token Counter tool shows that the same long prompt uses around 1.25x as many tokens with Haiku 5.5 compared to Haiku 4.5, so there's a hidden price increase there.
- The most recent release of llm-anthropic finally fixed it so I don't need to ship a new version of that plugin for every new model.
- Today, we’re excited to announce the availability of Claude Haiku 5.5 on Amazon Bedrock and Claude Platform on AWS.
- According to Anthropic, Claude Haiku 5.5 is the fastest and most efficient model in the Claude 5.5 family, built for subagents and high-volume, cost-sensitive work.
Sources (2)
- [1]Claude Haiku 5.5Simon Willison's Weblog · Oct 7, 08:56 PM
As previously promised, here's Anthropic's new fast, low cost model: Introducing Claude Haiku 5.5.
My Claude Token Counter tool shows that the same long prompt uses around 1.25x as many tokens with Haiku 5.5 compared to Haiku 4.5, so there's a hidden price increase there.
- [2]Introducing Claude Haiku 5.5 on AWSAWS Machine Learning Blog · Oct 7, 06:52 PM
Today, we’re excited to announce the availability of Claude Haiku 5.5 on Amazon Bedrock and Claude Platform on AWS.
According to Anthropic, Claude Haiku 5.5 is the fastest and most efficient model in the Claude 5.5 family, built for subagents and high-volume, cost-sensitive work.
Extractive summary: sentences quoted from the sources.