Claude Sonnet 5.5 Reviews & Ratings

Claude Sonnet 5.5

5.0 out of 5 stars
Anthropic Reviews & Ratings

Anthropic

5.0 out of 5 stars

Ratings and Reviews 1 Rating

Total 5 out of 5 stars
ease 5 out of 5 stars
features 5 out of 5 stars

Ratings and Reviews 1 Rating

Total 5 out of 5 stars
ease 5 out of 5 stars
features 5 out of 5 stars
design 5 out of 5 stars
support 4 out of 5 stars

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What is Claude Sonnet 5.5?

Claude Sonnet 5.5 is Anthropic’s faster, lower-cost Claude 5.5 model for well-scoped professional work, software development, agentic workflows, and content creation. Anthropic positions it below Claude Opus 5.5 for the most complex open-ended work, but says it can perform comparably on some benchmarks when run at higher effort settings. The model delivers a particularly large improvement in coding, including a 70.6% result on Terminal-Bench 4.0, 46.2% on FrontierCode at Max effort, and 55.5% on CursorBench 4.0. It also scores 1844 on GDPval-AA, 1811 on AA-Briefcase, 64.5% on Humanity’s Last Exam with tools, and 80.1% on OSWorld 2.1 partial. Anthropic reports that Sonnet 5.5 is better at long-horizon work, image understanding, collaboration, and codebase comprehension than Sonnet 5. The company also highlights design-oriented improvements, including the ability to produce polished documents, spreadsheets, slides, and user interfaces with less editing. Sonnet 5.5 generates output more than 30% faster than its predecessor and is Anthropic’s fastest Sonnet model to date. Although its listed token prices are unchanged from Sonnet 5, Anthropic says greater token efficiency can reduce per-task cost by up to 30%. Pricing is $2 per million input tokens, $10 per million output tokens, $2.50 per million cache-write tokens, and $0.20 per million cache-read tokens. The model includes cyber safeguards, biology safeguards, reasoning-extraction protections, and preserved-thinking controls, with some higher-risk cyber requests falling back to Sonnet 5. Claude Sonnet 5.5 is available with zero data retention across Claude products, the Claude Platform, AWS, Google Cloud, and Microsoft Azure under the model name claude-sonnet-5-5.

What is Anthropic?

Anthropic is an advanced AI research and development company focused on building safe, reliable, and high-performing artificial intelligence systems. It is best known for its Claude family of models, which are designed to handle complex tasks such as reasoning, coding, content generation, and business automation. The company places a strong emphasis on AI safety and alignment, ensuring that its systems behave predictably and responsibly in real-world use. Anthropic develops both consumer-facing applications and enterprise solutions, enabling organizations to integrate AI into their workflows. Its models are available through APIs and partnerships with major cloud providers, making them accessible at scale. The company invests heavily in research to improve transparency, interpretability, and robustness in AI systems. Anthropic’s models are designed to support multi-step reasoning and agent-like behaviors, enabling more advanced use cases. It is also focused on improving the reliability and consistency of AI outputs. The company works to balance innovation with safety, aiming to create AI systems that are both powerful and trustworthy. Anthropic collaborates with industry partners to expand the reach and impact of its technology. Its solutions are used across industries, including technology, finance, healthcare, and education. The company continues to push the boundaries of AI capabilities while maintaining a strong focus on ethical development. Overall, Anthropic is a key player in the development of next-generation AI systems.

Media

Media

Integrations Supported

Cherry Studio
Claude
Claude Code
Claude Cowork
Claude Design
Claude Desktop
Claude Duet
Claude Security
Claude for Legal
Cursor
Factory Droid
OfoxAI
OpenClaw
OpenTag
Pi Agent
ClickUp Brain
Scalestack

Integrations Supported

Cherry Studio
Claude
Claude Code
Claude Cowork
Claude Design
Claude Desktop
Claude Duet
Claude Security
Claude for Legal
Cursor
Factory Droid
OfoxAI
OpenClaw
OpenTag
Pi Agent
HyCanvas
Open Code Review
PyGPT

API Availability

Has API

API Availability

Has API

Pricing Information

$2 per 1M tokens (input)
$2 per million input tokens and $10 per million output tokens.

Cache reads, which account for most costs in agentic and coding workloads, are priced at just $0.10 per million tokens

Pricing Information

Pricing not provided

Supported Platforms

SaaS

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Anthropic

Date Founded

2021

Company Location

United States

Company Website

claude.ai

Company Facts

Organization Name

Anthropic

Date Founded

2021

Company Location

United States

Company Website

anthropic.com

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

AI Vision Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

Categories and Features

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