Claude Haiku 4.5

Claude Haiku 4.5 is Anthropic's fastest, most cost-efficient model, built for scale. It delivers quick, accurate responses with improved instruction following, making it ideal for user-facing products and high-volume automation where every millisecond and every cent counts.

The model is well suited to classification, routing, retrieval-augmented generation, and real-time chat, where low latency and predictable cost are essential. It keeps quality high on everyday tasks while remaining light enough to run at very high request volumes.

Because it shares the Claude API and tooling, Haiku 4.5 slots neatly into pipelines alongside larger models, handling the bulk of routine traffic and escalating only the hardest work upstream. That makes it a practical default for latency-sensitive, cost-conscious workloads.

• Speed and Efficiency: Low-latency responses at high volume.
• Cost Effective: Optimised for large-scale, budget-sensitive workloads.
• Retrieval and Q&A: Strong RAG and question-answering performance.
• Real-Time Products: Ideal for chat and interactive experiences.