# Anthropic launches Claude Opus 4 and Sonnet 4 with Advanced Reasoning

URL: https://technosports.co.in/anthropic-launches-claude-opus-4-and-sonnet-4/  
Published: 2025-05-24  
Updated: 2025-05-24  
Author: Hardik Dhamija

[Anthropic](https://technosports.co.in/?s=Anthropic) has introduced two new AI models: [Claude](https://claude.ai/)Opus 4 and Claude Sonnet 4. The company contends that these are among the best out there, but that their chief value is in their logical prowess. Both models are fine-tuned for coding and agent-style reasoning. Claude Opus 4 is the best model yet from Anthropic, and it’s aimed at developers working on long, intricate projects.

According to Anthropic’s blog, “Claude Opus 4 is the world’s best coding model, delivering consistent performance on lengthy tasks and agent workflows.” Claude Sonnet 4, meanwhile, is a more useful, streamlined advance on Claude Sonnet 3.7, this time available as part of the free tier, with Opus 4 still only available to paid subscribers.

![Claude](https://technosports.co.in/wp-content/uploads/2025/05/Claude-1.webp)

## **Table of Contents**

## **Anthropic unveils Claude Opus 4 and Sonnet 4 AI Models with Improved Coding, Memory, and Tool-Use Features**

A major success is the result of Claude Opus 4 being high on the coding benchmarks, with a mark of 72.5% in the SWE bench and 43.2% in the Terminal bench. This means the model can withstand hours of high performance to accommodate your tough projects. Claude Sonnet 4 also got better, scoring 72.7% on SWE-bench, balancing speed and accuracy well for common uses, but it’s less powerful than Opus 4.

![Claude 2](https://technosports.co.in/wp-content/uploads/2025/05/Claude-2.webp)

Each is equipped with “extended thinking” and can access tools, such as the ability to pause reasoning and bring in tools like a web search or code execution, and then continue his or her thought process.

They can also help execute several tool-related functions at the same time in order to help manage multi-faceted workflows more efficiently. New memory capabilities enable the models to access local files, extract important information, and retain it for future use, improving long-term memory and task continuity.

![Claude 3](https://technosports.co.in/wp-content/uploads/2025/05/Claude-3-1.webp)

Anthropic also rolled out four new API features: a code execution tool, a Multi-Component Programs (MCP) connector, a Files API, and prompt caching for up to an hour, helping developers create more capable AI agents.

[Claude Opus 4](https://www.anthropic.com/news/claude-4)excels in memory during agent tasks, demonstrated by navigating a Pokémon game with file access, maintaining context, and reducing shortcut-taking tendencies seen in earlier models. To improve transparency, Anthropic added “thinking summaries”—brief explanations of the model’s reasoning—generated by a smaller AI, while full reasoning chains remain available in Developer Mode.

## **FAQs**

### **What tasks is Claude Opus 4 best for?**

It’s ideal for complex, long-running coding and agent workflows requiring sustained focus.

### **Can free users access both models?**

Free users get Claude Sonnet 4, while Claude Opus 4 is for paid subscribers only.