What is Claude Sonnet 5?

Claude Sonnet 5 is Anthropic’s most advanced frontier model, engineered for sustained reasoning and complex, multi-stage tasks. It is optimized for long-horizon coding, agentic systems, and intensive interaction with computers and software tools. Sonnet 5 achieves state-of-the-art performance on the SWE-bench Verified benchmark, reflecting its deep software engineering expertise. It also leads the OSWorld benchmark, which evaluates real-world computer use capabilities. One of its defining strengths is the ability to maintain focus and coherence for more than 30 hours on demanding workflows. The model introduces major improvements in tool execution, memory management, and large-context reasoning. These upgrades allow it to handle extended conversations, multi-agent coordination, and iterative problem solving. Sonnet 5 supports context editing and persistent memory tools to maintain continuity across sessions. It can also execute code and create files directly within Claude applications. The model demonstrates strong understanding across technical and professional domains, including law, finance, and science. Claude Sonnet 5 is deployed under AI Safety Level 3 standards. Built-in classifiers and safeguards reduce risks related to prompt injection and sensitive outputs.

Integrations

Offers API?:
Yes, Claude Sonnet 5 provides an API

Screenshots and Video

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Company Facts

Company Name:
Anthropic
Date Founded:
2021
Company Location:
United States
Company Website:
claude.ai

Product Details

Deployment
SaaS
iPhone
Android
Training Options
Documentation Hub

Product Details

Target Company Sizes
Individual
1-10
11-50
51-200
201-500
501-1000
1001-5000
5001-10000
10001+
Target Organization Types
Mid Size Business
Small Business
Enterprise
Freelance
Nonprofit
Government
Startup
Supported Languages
Arabic
Chinese (Mandarin)
Chinese (Simplified)
English
French
German
Hindi
Italian
Japanese
Korean
Portuguese
Russian
Spanish

Claude Sonnet 5 Categories and Features

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