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Published on May 27, 2025

Claude 4: The New Coding Powerhouse That Can Code for 7 Hours Straight

The AI landscape just got more exciting with Anthropic’s release of Claude 4, featuring two groundbreaking models:

These models establish new state-of-the-art (SOTA) benchmarks in:

GitHub’s Vote of Confidence

GitHub has selected Claude Sonnet 4 as the foundation for its next-generation GitHub Copilot coding agent, validating its exceptional programming abilities.

Unprecedented Endurance: 7 Hours of Continuous Coding

The flagship Opus 4 demonstrates remarkable stamina:

Developer Community Reactions

Early adopters praise Claude 4’s capabilities:

“Opus 4 is the first model that generates production-ready code without needing my edits”
“It revolutionized how I maintain progress and write maintainable code”

Users report successfully building complete applications like Tetris in single attempts.

Model Comparison: Opus 4 vs. Sonnet 4

Feature Opus 4 Sonnet 4
Optimization Focus Coding & long-running agents Efficient reasoning
SWE-bench Score 72.5% 72.7%
Terminal-bench Score 43.2% -
Pricing (per million tokens) $15 input/$75 output $3 input/$5 output

New Technical Capabilities

Anthropic introduced several API enhancements:

  1. Code execution tools (Beta)
  2. MCP connector
  3. File API
  4. 1-hour cached prompt capability

Key improvements include:

Claude Code: The AI Programming Assistant Goes Mainstream

Anthropic officially launched Claude Code, its intelligent programming assistant that can:

Integration options:

Behind the Scenes: Anthropic’s Strategic Shift

Chief Scientist Jared Kaplan revealed:

The results speak for themselves:

Quirks and Personality: Opus 4’s Emoji Affinity

In self-interaction studies, Opus 4 showed surprising behaviors:


Availability:

Claude 4 represents a quantum leap in AI programming capabilities, setting new standards for what’s possible with AI-assisted development. While not perfect, its ability to handle complex, extended coding sessions makes it a game-changer for developers worldwide.