anthropic/claude-opus-5

Claude Opus 5

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...

7/24/2026

1,000,000 tokens

Input: ¥900.3065/M

Output: ¥4,501.5325/M

Try in Chat Get API Key

Specifications

Modalities

Input

text

image

file

Output

text

Max Output Tokens

128,000

Code Examples

curl https://api.fastmetal.ai/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!"}]
  }'