Claude Haiku 5.5 is now available on AWS
Today’s signal AWS What’s New recently reported Claude Haiku 5.5 is now available on AWS. Published context: October 7, 2026. AWS now offers Claude Haiku 5.5, the fastest and most efficient model in the Claude 5.5 family, built for subagents and high-volume, cost-sensitive work. According to Anthropic, it costs around 75% less than Claude Haiku 4.5 for most tasks. Claude Haiku 5.5 is Anthropic’s most capable Haiku yet, a significant step up from Haiku 4.5 across coding, tool use, c ...