Model
Claude 4 Haiku
A lightweight model in Anthropic's Claude 4 series emphasizing low latency and low cost; it is the upgraded replacement for Claude 3 Haiku.
Timeline (last 90 days)
Oct 18
AWS also provided new model IDs and pricing information in the announcement, with migration recommendations as follows: migrate lightweight tasks from Claude 3 Haiku to Claude 4 Haiku or a new model of equivalent positioning; migrate general tasks from Claude 3 Sonnet / 3.5 Sonnet to Claude 4 Sonnet; and evaluate Claude 4 Opus or higher-tier versions of Sonnet for complex reasoning scenarios.
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