Claude 3 Sonnet API

Important: Claude 3 Sonnet will be retired on July 21st, 2025. Please plan to migrate to a newer model

Claude-3-Sonnet Description

Basic Information

Model Name: Claude-3-Sonnet

Developer/Creator: Anthropic

Release Date: March 2024

Version: Sonnet 

Model Type: Multimodal AI (text and image processing)

Context window: 200K

Overview:

Sonnet is engineered to balance performance and speed, positioning it as an excellent option for applications that need both high efficiency and robust capabilities. As a multimodal model like its counterparts, Sonnet can process and analyze both text and image data.

Key Features:

• Multimodal input capability: Handles text and image data simultaneously.
• Optimized for a balance between skill and operational speed.
• Suitable for applications requiring quick response times.
• Seamless cloud integration for easy deployment and scalability.

Intended Use:

Ideal for real-time applications in content creation, customer support, and interactive services where response speed is critical.

Claude 3 Sonnet excels in detailed content creation, precise summarization, and managing complex scientific inquiries. 

Language Support:

The model shows enhanced skills in non-English languages and coding tasks, broadening its applicability across diverse global use cases.

Technical Details

Architecture:

Utilizes a combination of unsupervised learning techniques and supervised fine-tuning, integrating Constitutional AI for ethical alignment.

Training Data:

Trained on a diverse mix of internet-sourced and proprietary datasets as of August 2023, prioritizing ethical data practices.

Performance Metrics:

Balances computational efficiency with robust performance in real-time applications.

Comparison to Other Models:

For most workloads, Sonnet delivers performance that is twice as fast as Claude 2 and Claude 2.1, while also demonstrating superior intelligence. It shines in tasks that require quick responses, such as retrieving information or automating sales processes.

Usage

Code Samples/SDK:

Ethical Considerations

• Developed under Anthropic’s Responsible AI Use and Scaling Policy.

Licensing

• Available under both commercial and non-commercial terms.

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References: Anthropic Model-Card

• Large‑scale document processing: Process books, legal contracts, and reports up to 200K tokens
• Visual data reasoning: Interpret charts, graphs, diagrams, and extract insights using image input
• Advanced coding workflows: Generate, review, and debug code; supports agentic coding and multi-step tool chains  
• Customer support automation: Understand long conversation history, handle context-rich queries
• Reporting & summarization: Create executive summaries across text + image data (CSV tables, PDFs)
• Content creation & editing: Generate multilingual documents, perform rewriting, tone adjustment, and stylistic edits