Claude Opus 5

anthropic/claude-opus-5

Claude Opus 5 is Claude's high-end model, suitable for complex reasoning, code architecture, and challenging analytical tasks.

Real-Time Prices

Unit: USD per 1 million tokens (USD per 1M tokens). Prices are provided in real time by the gateway and settled based on actual token usage; usage that has already occurred is recorded at the price at the time it occurred and is not retroactively adjusted for price changes.

Input$1.625 / 1M
Output$8.125 / 1M
Cache Hit$0.1625 / 1M
Reasoning$8.125 / 1M

Requests that fail and do not generate upstream output are not billed.View Plans and Pricing

Specifications and Capabilities

Context Window1M
Number of Abilities3 / 5
  • Stream OutputSSE returns results token by token, making it suitable for conversational interactionsSupport
  • Tool CallsFunction calls / tool usageSupport
  • Visual InputThis model does not support this capability.Not supported
  • Reasoning PatternsReasoning output that supports longer chains of thoughtSupport
  • JSON OutputThis model does not support this capability.Not supported

How to Call

Base URL: https://api.admesh.ai/v1, model name: anthropic/claude-opus-5. Compatible with the OpenAI SDK and any client that supports custom Base URLs.

curl https://api.admesh.ai/v1/chat/completions \
  -H "Authorization: Bearer $ADMESH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-opus-5",
    "messages": [{"role": "user", "content": "Hello"}],
    "stream": true
  }'

Note: The model name used in API calls is anthropic/claude-opus-5 (with a slash), not the hyphenated form found in this page's URL. View the developer documentation

Other models from Claude

Models from the same company share the same access method; to switch between them, simply change the "model" field.

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Claude Fable 5 focuses on long-form writing and narrative expression, making it ideal for generating stories, copy, and creative content.

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Input$3.25 / 1M
Output$16.25 / 1M
Cache$0.325 / 1M

Claude Fable 5.1

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Claude Fable 5.1 focuses on long-form writing and narrative expression, making it ideal for generating stories, copy, and creative content.

1MFlowToolsReasoning
Input$3.25 / 1M
Output$16.25 / 1M
Cache$0.08125 / 1M

Claude Haiku 4.5

anthropic/claude-haiku-4-5-20251001

Claude Haiku 4.5 emphasizes low latency and low cost, making it suitable for high-concurrency classification, entity extraction, and lightweight question-answering tasks.

200KFlowToolsReasoning
Input$0.325 / 1M
Output$1.625 / 1M
Cache$0.0325 / 1M

View All Plans and Rates

Start calling Claude Opus 5

Once you register, you can create an API key. Usage is billed based on actual consumption, and the key is valid indefinitely. If you need a dedicated channel or a framework agreement, please contact us directly.