Claude Opus 5

Anthropic 旗舰 Claude Opus 5 (via GCP Vertex)

Model ID: claude-opus-5 · Type: chat · Provider: Anthropic

Endpoints: /v1/messages · /v1/chat/completions

Pricing

Input (per 1M tokens)$5 USD
Output (per 1M tokens)$25 USD
Cache read (per 1M tokens)$0.5 USD
Cache write 5m (per 1M tokens)$6.25 USD
Cache write 1h (per 1M tokens)$10 USD
from openai import OpenAI

client = OpenAI(api_key="sk-...", base_url="https://api.router.ai/v1")
resp = client.chat.completions.create(
    model="claude-opus-5",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)

FAQ

How much does Claude Opus 5 cost on openbat.ai?

Claude Opus 5 (`claude-opus-5`) is billed per usage at $5/1M in · $25/1M out, in USD. Current pricing is always listed at https://openbat.ai/models/claude-opus-5.

How do I call Claude Opus 5 through openbat.ai?

Send a request to https://api.router.ai/v1/v1/messages with the header `Authorization: Bearer <your API key>` and `"model": "claude-opus-5"`. The API is OpenAI-compatible, so any OpenAI SDK works by changing base_url to https://api.router.ai/v1 — no other code change.

Which endpoints does Claude Opus 5 support?

Claude Opus 5 can be called on: /v1/messages; /v1/chat/completions.

What is Claude Opus 5's context window?

Claude Opus 5 accepts up to 1,000,000 input tokens and can return up to 128,000 output tokens. Requests exceeding the input limit are rejected before reaching the model.

What can Claude Opus 5 do?

Claude Opus 5 supports: vision, function_calling, prompt_caching.

Who makes Claude Opus 5?

Claude Opus 5 is a chat model from Anthropic, available through the openbat.ai gateway with the same API key as every other model.

Call it through the openbat.ai OpenAI-compatible endpoint (API base: https://api.router.ai/v1). AI agents can discover and call every model on this gateway through MCP (https://mcp.router.ai/mcp) with no manual integration.

Which should you pick

API reference · All models