Claude Opus 4

Overview

Claude Opus 4 is Anthropic’s most powerful model to date, designed for tasks requiring the highest levels of intelligence, creativity, and nuanced reasoning. It builds on the foundation of Claude 3.5 Sonnet while pushing the boundaries of what AI systems can accomplish.

Key Strengths

Extended Thinking: Claude Opus 4 can engage in deep, multi-step reasoning through its extended thinking capability, allowing it to tackle problems that require careful deliberation and analysis.

Agentic Capabilities: Enhanced computer use and tool integration enables Claude Opus 4 to operate autonomously on complex, multi-step tasks with minimal supervision.

Frontier Intelligence: Sets new benchmarks on graduate-level reasoning, research synthesis, and expert-level domain tasks across science, law, medicine, and engineering.

Advanced Safety: Incorporates Anthropic’s latest constitutional AI training and safety measures for responsible deployment in high-stakes environments.

Use Cases

• Cutting-edge research and scientific analysis
• Complex software architecture and system design
• Expert-level professional consulting assistance
• Multi-step autonomous task completion
• Strategic planning and decision support
• Advanced creative and technical writing

Benchmark Performance

Claude Opus 4 achieves state-of-the-art results across major benchmarks:

Benchmark	Score
MMLU	91.2%
GPQA	62.8%
GSM8K	97.5%
HumanEval	92.1%
MATH	72.4%
ARC-AGI	21.4%

Extended Thinking Mode

Enable extended thinking for complex problems:

import anthropic

client = anthropic.Anthropic()

message = client.messages.create(
    model="claude-opus-4-20250314",
    max_tokens=16384,
    thinking={
        "type": "enabled",
        "budget_tokens": 10000
    },
    messages=[
        {"role": "user", "content": "Develop a comprehensive strategy for..."}
    ]
)

API Integration

import anthropic

client = anthropic.Anthropic()

message = client.messages.create(
    model="claude-opus-4-20250314",
    max_tokens=4096,
    messages=[
        {"role": "user", "content": "Analyze the implications of this research paper."}
    ]
)

When to Use Claude Opus 4

Choose Claude Opus 4 when:

• The task requires the highest possible quality and intelligence
• You need extended reasoning for complex problems
• Autonomous multi-step task completion is required
• The application justifies premium pricing

For most production applications, Claude 3.5 Sonnet offers excellent capability at lower cost. Reserve Opus 4 for your most demanding use cases.