Claude Opus 4 (2025-05-14)

by AnthropicAnthropic
anthropic/claude-4-opus-20250514

Anthropic’s flagship—the most powerful model yet for sustained coding, deep reasoning, and agentic workflows.

Performance Metrics

Context

200K

Input

$11.25
$15

Output

$56.25
$75

Latency

2.74s

Uptime

99.99 %

Getting Started

Use this model through our unified API endpoint

curl -X POST "https://api.firstrouter.ai/v1/chat/completions" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-4-opus-20250514",
    "messages": [
      {
        "role": "user",
        "content": "Hello, how are you?"
      }
    ]
  }'