Long context

claude-opus-5 API pricing

Anthropic's Claude series — long context, dependable tool calling, and the native models behind Claude Code.

Model IDanthropic/claude-opus-5

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Call summary

Input

$7.50$2.25/ 1M tokens

Cache write $4.69

Output

$37.50$11.25/ 1M tokens

Cache read $0.38

Context Window

1.05M

Max output

API Endpoints

Available Configurations

Production reliability

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claude-opus-5 API endpoints

One API key — call this model through any of the endpoints below.

POST/v1/chat/completionsOpenAI-compatible · Works for every model

Docs

POST/v1/messagesAnthropic-native · Native for Claude Code

Docs

Call claude-opus-5 from your code

The same API key works across every endpoint below.

Endpoint

/v1/chat/completions

Model ID

anthropic/claude-opus-5

Routing mode

auto

Request example

bash

curl -X POST \
  https://api.router.one/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "anthropic/claude-opus-5",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

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