Grok 4.5

xAI Grok 4.5，500K 上下文

Model ID: grok-4.5 · Type: chat · Provider: xAI

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

Pricing

Input (per 1M tokens)$2 USD
Output (per 1M tokens)$6 USD
Cache read (per 1M tokens)$0.3 USD

Context tiers

≤ 200000 tokens$2 / 1M in$6 / 1M out
> 200000$4 / 1M in$12 / 1M out
from openai import OpenAI

client = OpenAI(api_key="sk-...", base_url="https://api.router.ai/v1")
resp = client.chat.completions.create(
    model="grok-4.5",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)

FAQ

How much does Grok 4.5 cost on OpenCrow?

Grok 4.5 (`grok-4.5`) is billed per usage at $2/1M in · $6/1M out, in USD. Current pricing is always listed at https://opencrow.ai/models/grok-4.5.

How do I call Grok 4.5 through OpenCrow?

Send a request to https://api.router.ai/v1/v1/chat/completions with the header `Authorization: Bearer <your API key>` and `"model": "grok-4.5"`. 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 Grok 4.5 support?

Grok 4.5 can be called on: /v1/chat/completions; /v1/messages.

What is Grok 4.5's context window?

Grok 4.5 accepts up to 512,000 input tokens and can return up to 32,768 output tokens. Requests exceeding the input limit are rejected before reaching the model.

What can Grok 4.5 do?

Grok 4.5 supports: vision, function_calling, prompt_caching.

Who makes Grok 4.5?

Grok 4.5 is a chat model from xAI, available through the OpenCrow gateway with the same API key as every other model.

Call it through the OpenCrow 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.

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