Claude Opus 4

anthropic/claude-opus-4

First generation Claude 4 Opus. Strong coding and reasoning.

Specifications

Context Window 200K tokens

Max Output 32K tokens

Latency moderate

Knowledge Cutoff Jan 2025

Training Data Mar 2025

Pricing

Input $15.00 per 1M tokens

Output $75.00 per 1M tokens

Capabilities

text Text generation and understanding

vision Image and visual input processing

tool use Function calling and tool integration

extended thinking Deep reasoning with chain-of-thought

API Identifiers

Model ID anthropic/claude-opus-4

Provider API ID claude-opus-4-20250514

AWS Bedrock anthropic.claude-opus-4-20250514-v1:0

GCP Vertex AI claude-opus-4@20250514

Usage via Multi-Router

curl https://api.multi-router.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "x-mr-router-id: YOUR_ROUTER_ID" \
  -d '{
    "model": "anthropic/claude-opus-4",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'