What is Claude Haiku 4.5
Claude Haiku 4.5 is a high-performance, low-cost small AI model recently launched by Anthropic. In coding performance, the model is comparable to the previous flagship model Claude Sonnet 4 , and performs better in some tasks, at only one-third the cost and more than twice the speed. The model has excellent alignment and safety, and is rated AI Safety Level 2 (ASL-2). The model supports deployment via the Claude API, Amazon Bedrock, and Google Cloud's Vertex AI, and is suitable for real-time, low-latency tasks such as chat assistants, customer service agents, and programming assistance.
Main features of Claude Haiku 4.5
-
Coding capability: Performs excellently in programming tasks, supports multiple programming languages, can generate high-quality code, and is suitable for rapid prototyping and multi-agent collaborative projects.
-
Real-time interaction: Suitable for low-latency tasks such as chat assistants, customer service agents, and pair programming, with fast response speed and a smooth user experience.
-
Multi-task processing: Supports working with the flagship model Claude Sonnet 4.5 to break down complex problems into multiple subtasks for parallel processing, greatly improving efficiency.
-
High safety: After detailed safety and alignment testing, the incidence of undesirable behavior is low, making it one of Anthropic's safest models currently.
-
Cost-effectiveness: The price is only one-third of Claude Sonnet 4, at $1 per million input tokens and $5 per million output tokens, offering extremely high cost-effectiveness.
Performance of Claude Haiku 4.5
- Programming capability：
-
SWE-bench Verified: Achieves 73.3% accuracy, comparable to Claude Sonnet 4 (72.7%), approaching the industry's top level.
-
Terminal-Bench: Scores 41.0%, performing better than Claude Sonnet 4 (36.4%).
-
OSWorld: Scores 50.7%, significantly higher than Claude Sonnet 4 (42.2%), performing excellently in computer use tasks.
-
- Mathematical capability：
-
Python tool support: Achieves 96.3% accuracy, an excellent performance.
-
No tool support: Achieves 80.7% accuracy, lower than with tool support but still higher than many large models.
-
- Multilingual capability：
-
MMMLU: The average accuracy across 14 non-English languages is 73.3%, showing good multilingual understanding.
-
Claude Haiku 4.5 project address
- Project official website：https://www.anthropic.com/news/claude-haiku-4-5
Application scenarios of Claude Haiku 4.5
- Programming assistant: Provides developers with code generation, debugging suggestions, and rapid prototyping support, improving programming efficiency, and is suitable for multi-agent collaborative projects.
- Chat assistant: Used to build real-time responsive chatbots that can quickly handle user requests and provide a smooth interactive experience.
- Customer service agent: Helps customer service staff quickly answer customer questions, provides accurate information support, and improves customer satisfaction.
- Pair programming: Assists programmers with code writing and logic optimization, provides real-time feedback and improvement suggestions, and improves programming quality.
- Educational tutoring: Provides students with programming learning tutoring, helps them understand complex concepts, and generates practice questions and answers.