Anthropic Claude 4 launched! World's best coding model & 5 API tools
Claude 4 series launched! Opus 4 leads in coding & reasoning, Sonnet 4 upgrades AI agents. New tools, API features & safety measures.
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Significant advancements in complex reasoning and programming capabilities, it’s ready to “extort humanity” right out of the gate.
The world has been eagerly awaiting GPT-5 and DeepSeek V4, but starting today, the competition in large-scale models has entered a brand-new phase.
Today, the renowned AI startup Anthropic officially launched the Claude 4 series of large-scale models.
The initial models released include Claude Opus 4 and Claude Sonnet 4, setting new standards for code generation, advanced reasoning, and AI agents.
Anthropic states that Claude Opus 4 is a globally leading coding model, boasting consistently high performance in complex, long-running tasks and agent workflows.
Claude Sonnet 4 is a significant upgrade over Claude Sonnet 3.7, offering superior coding and reasoning capabilities while responding to user instructions with greater precision.
In a demo video, Anthropic showcased how Claude 4 seamlessly integrates into people’s entire workday. It features three advanced capabilities: conducting in-depth research through custom integrations in the Claude app, managing projects, and independently solving coding tasks in Claude Code.
In addition to the new models, Anthropic also announced a series of new capabilities:
Extended Thinking with Tools (Beta): Both new models can use tools (such as web search) during extended thinking processes, allowing Claude to alternate between reasoning and tool usage to enhance model output.
New Model Capabilities: Both models can use tools in parallel and follow instructions more precisely. When developers grant access to local files, the models significantly improve memory retention, extracting and saving key information to maintain continuity and build implicit knowledge over time.
Official Launch of Claude Code: Anthropic has expanded how developers collaborate with Claude. Claude Code now supports executing background tasks via GitHub Actions and integrates natively with VS Code and JetBrains, displaying edits directly in files for seamless pair programming.
New API Features: The Anthropic API will introduce four new features, enabling developers to build more powerful AI agents: code execution tools, MCP connector, Files API, and a new Prompt caching feature lasting up to one hour.