Claude Haiku 4.5 (latest) (EU)

Anthropic's Claude Haiku 4.5 is positioned as the most compact variant in the current Claude generation, designed for near-frontier quality at much lower cost than its larger siblings. At launch, Anthropic framed Haiku 4.5 as hitting a sweet spot of strong coding and reasoning performance paired with low latency and economical pricing, with the stated goal of giving users a way to spend less while still getting capable responses for everyday workloads.

In practice the model fits best where many parallel invocations or tight budgets matter more than top-tier benchmark scores. Anthropic suggests pairing Haiku 4.5 with Sonnet 4.5, letting Sonnet decompose complex problems while a team of Haiku 4.5 instances executes the resulting sub-tasks, a pattern well suited to agentic pipelines, bulk classification, and high-throughput coding assistance. Independent reporting notes that Haiku 4.5 approaches, but does not match, the performance of larger contemporaries like Sonnet 4.5 and GPT-5, making it a sensible default when cost and speed outweigh the need for the strongest single-shot results.