Claude Sonnet 5

Claude Sonnet 5

Anthropic
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About

Claude Sonnet 5 is Anthropic's latest AI model, designed to deliver stronger agentic capabilities for coding, reasoning, tool use, and knowledge work while maintaining the efficiency of the Sonnet family. The model can independently plan tasks, use external tools such as browsers and terminals, and complete complex workflows that previously required larger AI models. Sonnet 5 significantly improves upon Claude Sonnet 4.6 with better reasoning, coding performance, reduced hallucinations, stronger safety behavior, and more effective autonomous task execution. It is available across Claude plans and through the Claude API with OpenAI-style developer access for application integration. Anthropic also introduced lower introductory API pricing, making Sonnet 5 a cost-effective option for developers building AI-powered products. By combining advanced agentic capabilities with improved safety and competitive pricing, Claude Sonnet 5 helps developers build more capable AI applications.

About

Eternity AI is building an HTLM-7B, a machine learning model that knows what the internet is and how to access it to generate responses. Humans don't make decisions based on 2-year-old data. For a model to think like a human, it needs to get access to real-time knowledge and everything about how humans behave. Members of our team have previously published white papers and articles on topics related to on-chain vulnerability coordination, GPT database retrieval, decentralized dispute resolution, etc.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Claude Sonnet 5 is designed for software developers, AI engineers, enterprises, researchers, and organizations building AI-powered applications, coding assistants, autonomous agents, and advanced business automation workflows

Audience

Anyone searching for an AI solution that can access the internet to generate responses

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$2 per 1M tokens (input)
$2 per million input tokens and $10 per million output tokens through August 31, 2026, after which it will be priced at $3 per million input tokens and $15 per million output tokens
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 4.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • Claude Sonnet 5 has become my default model for agentic work because it stays focused over long, multi-step tasks without constantly needing course correction. I can hand it a large objective, let it break the work into steps, and it generally makes sensible decisions along the way. Its coding ability is excellent, but what stands out even more is how well it reasons through an entire project instead of solving isolated problems. Whether it's debugging, refactoring, researching APIs, or generating documentation, it feels like it's optimizing for the end result rather than just the next response. Anthropic also positions Sonnet 5 specifically for autonomous browsing, planning, coding, and knowledge work, making it a strong fit for agentic workflows. I also appreciate how consistent it is. Long-running conversations remain coherent, instructions stick, and it rarely loses track of the bigger picture, which is exactly what I want when running autonomous agents.

Cons

  • Like every AI model, Claude Sonnet 5 isn't perfect. It can occasionally spend too much time explaining its reasoning when I'd rather it move faster, and I still verify important code or business decisions before shipping anything to production.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Anthropic
Founded: 2021
United States
claude.ai

Company Information

Eternity AI
India
eternityai.tech/

Alternatives

Claude Fable 5

Claude Fable 5

Anthropic

Alternatives

Claude Mythos 5

Claude Mythos 5

Anthropic
Claude Opus 5

Claude Opus 5

Anthropic
LUIS

LUIS

Microsoft
Claude Sonnet 4

Claude Sonnet 4

Anthropic

Categories

Categories

Integrations

Augment Code
Bash
C
C++
CSS
Claude
Claude Agent SDK
Claude Code
Claude Cowork
Claude Design
Claude Desktop
Claude Dispatch
Dart
Go
Java
JavaScript
PowerShell
Python
Ruby
Rust

Integrations

Augment Code
Bash
C
C++
CSS
Claude
Claude Agent SDK
Claude Code
Claude Cowork
Claude Design
Claude Desktop
Claude Dispatch
Dart
Go
Java
JavaScript
PowerShell
Python
Ruby
Rust
Claim Claude Sonnet 5 and update features and information
Claim Claude Sonnet 5 and update features and information
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