University of Kwazulu-Natal

Introducing Claude Sonnet 4 5 Anthropic Com

Bonisiwe Shabane
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introducing claude sonnet 4 5 anthropic com

Claude Sonnet 4.5 is the best coding model in the world. It's the strongest model for building complex agents. It’s the best model at using computers. And it shows substantial gains in reasoning and math. Code is everywhere. It runs every application, spreadsheet, and software tool you use.

Being able to use those tools and reason through hard problems is how modern work gets done. Claude Sonnet 4.5 makes this possible. We're releasing it along with a set of major upgrades to our products. In Claude Code, we've added checkpoints—one of our most requested features—that save your progress and allow you to roll back instantly to a previous state. We've refreshed the terminal interface and shipped a native VS Code extension. We've added a new context editing feature and memory tool to the Claude API that lets agents run even longer and handle even greater complexity.

In the Claude apps, we've brought code execution and file creation (spreadsheets, slides, and documents) directly into the conversation. And we've made the Claude for Chrome extension available to Max users who joined the waitlist last month. We're also giving developers the building blocks we use ourselves to make Claude Code. We're calling this the Claude Agent SDK. The infrastructure that powers our frontier products—and allows them to reach their full potential—is now yours to build with. This is the most aligned frontier model we’ve ever released, showing large improvements across several areas of alignment compared to previous Claude models.

Today, we’re excited to announce that Claude Sonnet 4.5, powered by Anthropic, is now available in Amazon Bedrock, a fully managed service that offers a choice of high- performing foundation models from leading AI... This new model builds upon Claude 4’s foundation to achieve state-of-the-art performance in coding and complex agentic applications. Claude Sonnet 4.5 demonstrates advancements in agent capabilities, with enhanced performance in tool handling, memory management, and context processing. The model shows marked improvements in code generation and analysis, from identifying optimal improvements to exercising stronger judgment in refactoring decisions. It particularly excels at autonomous long-horizon coding tasks, where it can effectively plan and execute complex software projects spanning hours or days while maintaining consistent performance and reliability throughout the development cycle. Source: https://www.anthropic.com/news/claude-sonnet-4-5

By using Claude Sonnet 4.5 in Amazon Bedrock, developers gain access to a fully managed service that not only provides a unified API for foundation models but ensures their data stays under complete control... Claude Sonnet 4.5 also seamlessly integrates with Amazon Bedrock AgentCore, enabling developers to maximize the model’s capabilities for building complex agents. AgentCore’s purpose-built infrastructure complements the model’s enhanced abilities in tool handling, memory management, and context understanding. Developers can leverage complete session isolation, 8-hour long-running support, and comprehensive observability features to deploy and monitor production-ready agents from autonomous security operations to complex enterprise workflows. On Monday, Anthropic launched a new frontier model called Claude Sonnet 4.5, which it claims offers state-of-the-art performance on coding benchmarks. The company says Claude Sonnet 4.5 is capable of building “production-ready” applications, rather than just prototypes, representing a leap in reliability from previous AI models.

Claude Sonnet 4.5 will be available via the Claude API and in the Claude chatbot. The pricing for developers is the same as Claude Sonnet 4: $3 per million input tokens (roughly 750,000 words, or more than the entire “Lord of the Rings” series) and $15 per million output... In the last year, Anthropic’s AI models have emerged as a favorite among developers and enterprises, in large part due to their strong performance on software engineering tasks. Apple and Meta reportedly use Claude AI models internally, and Anthropic has made a significant business selling API access to AI coding applications such as Cursor, Windsurf, and Replit. Recently, OpenAI’s GPT-5 has challenged Anthropic’s dominance in the space, outperforming Claude models on a variety of coding benchmarks. Anthropic says Claude Sonnet 4.5 offers industry-leading performance on several coding benchmarks, including SWE-Bench Verified.

However, Anthropic AI researcher David Hershey tells TechCrunch that it is hard to capture Claude Sonnet 4.5’s performance on benchmarks alone. Hershey says he’s seen Claude Sonnet 4.5 code autonomously for up to 30 hours during early trials with some enterprise customers. In that time, he watched the AI model not only build an application, but also stand up database services, purchase domain names, and perform a SOC 2 audit to make sure the product was... We’re so glad you’re here. You can expect all the best TNS content to arrive Monday through Friday to keep you on top of the news and at the top of your game. Check your inbox for a confirmation email where you can adjust your preferences and even join additional groups.

Follow TNS on your favorite social media networks. Check out the latest featured and trending stories while you wait for your first TNS newsletter. Anthropic’s Claude Sonnet and Opus large language models have long been favorites among developers, and today, the company is launching Claude Sonnet 4.5, the latest version of its mainstream model, which the company describes... Anthropic has launched Claude Sonnet 4.5, its newest AI model, claiming significant advancements in autonomous work and coding. The company said that the model was able to run autonomously for 30 hours, maintaining sustained focus with minimal oversight while building an entire software application. It’s a significant improvement over the company’s previous Opus 4 model, released four months ago, which could operate autonomously for only seven hours.

Anthropic said Claude Sonnet 4.5 also outperformed Opus on key benchmarks and was more effective in meeting customers’ practical business needs. The company said the model was even better at coding than previous frontier models, and state-of-the-art on SWE-Bench Verified, a key benchmark that tests how models perform at software development tasks. Anthropic said that Claude Sonnet 4.5 was better than its predecessors at following instructions, identifying code improvements, and generating more production-ready code. When tested on tasks from the financial services industry, the company said the new model outperformed earlier Claude models in tasks such as researching, building financial models, and forecasting. Anthropic appears to be pushing further ahead of its competitors in coding assistance and autonomous task completion, positioning its models toward corporate and workplace use. The company’s previous Claude Opus 4.1 model already bested competitors on OpenAI’s new benchmark of professional task completion, GDPval, which tested how models performed compared with human professionals across a range of industries and...

Last week, OpenAI said its GPT-5 model and Anthropic’s Claude Opus 4.1 were “already approaching the quality of work produced by industry experts.” Anthropic on Monday announced its latest artificial intelligence model: Claude Sonnet 4.5. The model is better at coding, using computers and meeting practical business needs, and it excels in specialized fields like cybersecurity, finance and research, Anthropic said. The Amazon-backed startup, which is valued at $183 billion, is making Claude Sonnet 4.5 available to all users. Anthropic said Claude Sonnet 4.5 is the "best coding model in the world" according to industry benchmarks like SWE-bench Verified, a test set that measures an AI system's software coding abilities. "People are just noticing with this model, because it's just smarter and more of a colleague, that it's kind of fun to work with it when encountering problems and fixing them," Jared Kaplan, Anthropic's...

The model generates higher-quality code, is better at identifying code improvements and can follow instructions more reliably, the company said. Anthropic's latest AI model, Claude Sonnet 4.5, is here to revolutionize reasoning, coding, and handling prolonged tasks! With an extended context window of up to 200,000 tokens and hybrid reasoning capabilities, this AI powerhouse drastically reduces code editing errors and enhances security. Now available via GitHub Copilot and major cloud platforms, it's set to transform enterprise development and AI safety standards.

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Claude Sonnet 4.5 Is The Best Coding Model In The

Claude Sonnet 4.5 is the best coding model in the world. It's the strongest model for building complex agents. It’s the best model at using computers. And it shows substantial gains in reasoning and math. Code is everywhere. It runs every application, spreadsheet, and software tool you use.

Being Able To Use Those Tools And Reason Through Hard

Being able to use those tools and reason through hard problems is how modern work gets done. Claude Sonnet 4.5 makes this possible. We're releasing it along with a set of major upgrades to our products. In Claude Code, we've added checkpoints—one of our most requested features—that save your progress and allow you to roll back instantly to a previous state. We've refreshed the terminal interface a...

In The Claude Apps, We've Brought Code Execution And File

In the Claude apps, we've brought code execution and file creation (spreadsheets, slides, and documents) directly into the conversation. And we've made the Claude for Chrome extension available to Max users who joined the waitlist last month. We're also giving developers the building blocks we use ourselves to make Claude Code. We're calling this the Claude Agent SDK. The infrastructure that power...

Today, We’re Excited To Announce That Claude Sonnet 4.5, Powered

Today, we’re excited to announce that Claude Sonnet 4.5, powered by Anthropic, is now available in Amazon Bedrock, a fully managed service that offers a choice of high- performing foundation models from leading AI... This new model builds upon Claude 4’s foundation to achieve state-of-the-art performance in coding and complex agentic applications. Claude Sonnet 4.5 demonstrates advancements in age...

By Using Claude Sonnet 4.5 In Amazon Bedrock, Developers Gain

By using Claude Sonnet 4.5 in Amazon Bedrock, developers gain access to a fully managed service that not only provides a unified API for foundation models but ensures their data stays under complete control... Claude Sonnet 4.5 also seamlessly integrates with Amazon Bedrock AgentCore, enabling developers to maximize the model’s capabilities for building complex agents. AgentCore’s purpose-built in...