claude-opus-5

claude-opus-5 is a high-end Claude model for complex software engineering and multi-step reasoning workflows. This guide focuses on practical API integration patterns and production-oriented parameter usage. For model limits and release details, refer to official documentation.

모델 유형:

가격: Input 300 크레딧/1M, Output 1,500 크레딧/1M

Set chat parameters

System Prompt

Advanced options

Example params

Temperature최대 토큰

Request preview

{
  "model": "claude-opus-5",
  "messages": [
    {
      "role": "system",
      "content": "You are a precise, direct AI assistant that is strong at engineering decomposition."
    },
    {
      "role": "user",
      "content": "Use claude-opus-5 to break a complex product requirement into actionable engineering tasks."
    }
  ],
  "stream": true,
  "max_tokens": 32768,
  "temperature": 0.7
}

View API Docs

Type a message to test the model.

투명한 가격

claude-opus-5 pricing

Text usage is billed by actual token consumption. Final billing follows the current account quote.

크레딧 충전

Input 300 크레딧/1M, Output 1,500 크레딧/1M

ToAPIs를 선택하는 이유

Why call claude-opus-5 through ToAPIs?

Keep model access, API keys, billing, and usage management in one workflow.

Complex engineering problem solving

Well-suited for cross-module refactors, difficult debugging, and constrained code delivery tasks.

Long-running task consistency

Maintains stable execution across multi-step flows and checks key outcomes before completion.

High-fidelity instruction following

Handles strict system constraints and task requirements for low-tolerance production processes.

Connect in three steps

Create a key, send a compatible chat request, and monitor usage.

1
Step 1
Create an API key and set Authorization: Bearer <YOUR_API_KEY>.
2
Step 2
Send POST requests to /v1/messages with Content-Type: application/json.
3
Step 3
Include model, messages, and max_tokens at minimum; add system constraints for coding tasks.

When to use claude-opus-5

Use case 1

When you need complex architecture planning, cross-module refactoring, or difficult debugging support.

Use case 2

When long-running workflows require stable execution and consistency checks before output.

Use case 3

When your workflow combines code reasoning with image understanding or multimodal review tasks.

자주 묻는 질문

claude-opus-5 FAQ

What is claude-opus-5 best for in engineering workflows?

It is best for high-complexity, high-value tasks such as difficult coding problem solving, long-horizon refactors, and quality-sensitive delivery reviews.

What is the fastest API integration path?

Prepare an API key, authenticate with Authorization: Bearer, then POST to /v1/messages with model, messages, and max_tokens.

How should tool calling be integrated?

Pass tools with input_schema, execute returned tool_use calls, and send tool results back for the next completion turn.

How should streaming be handled?

Set stream=true and process SSE events incrementally, especially content_block_delta and final stop_reason handling.

claude-opus-5 API

Start building with claude-opus-5

Test a request here, then continue in the dashboard or API documentation.

Start for free View API Docs

Try claude-opus-5 with one ToAPIs key.

Use the same account and API surface across supported text models.

Quick Answer

Key Parameters

Common Errors