Anthropic · Model release
Claude Haiku 4.5: volume tier with a smaller context envelope
Haiku 4.5 is Anthropic's budget route for classification and extraction, but its 200K context and 4.5-generation positioning mean it is a volume tool, not a frontier substitute.
What changed
- Anthropic kept Haiku as the low-cost tier for high-volume structured work.
- Image input is supported at budget pricing relative to Opus and Sonnet.
- The model sits a generation behind the 5-series lineup in the catalog.
Best fit
- High-volume classification
- Routine extraction
- Cost-sensitive Anthropic stacks
What to be careful about
- 200K context is among the smallest in the catalog — long-document work may need routing.
- A cheaper tier is not automatically cheaper per successful task if retries increase.
Dataset snapshot: Claude Haiku 4.5 is also represented in the checked comparison dataset. Prices and benchmark figures carry their own field dates.