Anthropic Claude 4: Ushering in a New Era of Intelligent Agents and AI Coding

Anthropic has introduced its latest models in the Claude 4 family, which promise significant advancements for developers and AI assistant builders. The highlights are Claude Opus 4, hailed as the most powerful coding model to date, and Claude Sonnet 4, which aims to be an agile all-rounder.

Anthropic positions Claude Opus 4 as an innovative tool designed to enhance coding, research, writing, and scientific exploration. Impressive benchmark results reinforce its status as a leader in its class, achieving a notable 72.5% on SWE-bench and 43.2% on Terminal-bench, showcasing its capabilities in sustained performance for prolonged tasks.

Claude Sonnet 4 takes a more versatile approach, designed to handle various applications effectively. Early feedback is particularly positive; GitHub plans to use Sonnet 4 as the foundational model for its coding agent within GitHub Copilot. Tech commentators have also highlighted its improved ability to follow intricate instructions and produce aesthetically pleasing outputs, noting substantial reductions in navigation errors during coding tasks.

The Claude 4 models feature a hybrid structure, allowing both Opus 4 and Sonnet 4 to operate in quick response mode or extend their reasoning capabilities. Notably, Sonnet 4 will offer extended thinking to all users, making high-level AI more accessible.

To support developers, Anthropic is launching several new tools, including:

• Code Execution Tool: Enables models to run code directly, enhancing problem-solving applications.
• MCP Connector: Standardizes interactions between AI assistants and software environments.
• Files API: Facilitates working with files, addressing many real-world task requirements.
• Prompt Caching: Allows for caching prompts for up to an hour, optimizing speed and efficiency for common queries.

The performance metrics indicate that Claude 4 models excel in real-world software engineering tasks, demonstrating strength in coding, reasoning, multimodal functions, and agentic tasks. As for the pricing, Claude Opus 4 is set at $15 per million input tokens and $75 for output tokens, while Claude Sonnet 4 is positioned at $3 and $15, respectively, making it more accessible.

These new models will be available through the Anthropic API and will also integrate with platforms like Amazon Bedrock and Google Cloud’s Vertex AI, making them widely reachable for developers and businesses eager to innovate in AI applications.

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