1. Frontier-level coding at small-model speed

• Similar coding performance to Claude Sonnet 4 at one-third the cost.
• Runs 4-5x faster than Sonnet 4.5 for many tasks.
• Ideal for real-time pair programming, prototyping, and rapid iteration.

2. Excellent computer-use abilities

• Surpasses Claude Sonnet 4 in certain computer-control tasks.
• Great for agents requiring low-latency tool use (Chrome automation, coding agents, etc.).

3. Perfect for real-time, low-latency applications

• Chat assistants
• Customer support agents
• Interactive development loops
• Multi-agent orchestration

4. Works seamlessly with Sonnet 4.5 in hybrid agent setups

• Sonnet 4.5 plans complex workflows.
• Haiku 4.5 executes subtasks in parallel for speed and cost-efficiency.

5. High alignment & safest Claude model by metric

• Lower misaligned behavior rates than Haiku 3.5, Sonnet 4.5, and Opus 4.1.
• Limited CBRN risk → released under AI Safety Level 2 (ASL-2).

1. Speed

• Fastest model in the Claude 3 family
• Near-instant responses for chat, support, and live tools

2. Efficiency

• Most affordable model
• Ideal for massive-scale applications and low-latency use cases

3. Practical Use Cases

• Customer support
• Translations
• Moderation
• Logistics, inventory systems
• Extracting insights from unstructured data

4. Vision Skills

• Handles charts, images, and diagrams quickly
• Useful for scanning large volumes of visual data