ToolsThe story, in brief
Anthropic releases Claude Haiku 5.5 small model and halves Sonnet 5.5 cache read prices
Anthropic just cut Haiku 5.5 to a quarter of Haiku 4.5's cost—and halved cache read prices for Sonnet 5.5.
The KeyNews take
Why it matters
Two weeks after Opus 5.5, Anthropic is pricing smaller models and caching to compete on cost-per-inference. Practitioners running Claude at scale now have measurably cheaper options for latency-tolerant and cached workloads.
The key facts
5 to knowClaude Haiku 5.5 priced at roughly 25% of Haiku 4.5 cost
Claude Sonnet 5.5 cache read prices halved (50% reduction)
Haiku 5.5 released two weeks after Opus 5.5 (Sept. 22)
Release date: Oct. 7, 2026
Specific new pricing tiers not disclosed in excerpt
The story so far
Earlier coverage of this storyline
- Supercharge regulated workloads with Claude Code and Amazon BedrockAWS Machine Learning Blog
- Claude Haiku 5.5 now available on AI GatewayVercel Blog
- Introducing Claude Haiku 5.5 on AWSAWS Machine Learning Blog
- Claude Haiku 5.5Simon Willison
- This story
Go to the source
SiliconAnglesiliconangle.com
Publisher excerpt: Anthropic PBC today released Claude Haiku 5.5, pricing its newest small model at roughly a quarter of what Haiku 4.5 costs to run. Claude Sonnet 5.5 is getting cheaper as well, since the company is halving what it charges for cache reads on that model. Two weeks after Opus 5.5 launched Sept. 22,…