Private Models
xAI: Grok 4
x-ai/grok-4Grok 4 is xAI's latest reasoning model with a 256k context window. It supports parallel tool calling, structured outputs, and both image and text inputs. Note that reasoning is not exposed, reasoning cannot be disabled, and the reasoning effort cannot be specified. Pricing increases once the total tokens in a given request is greater than 128k tokens. See more details on the xAI docs
- Modalities
- TextImagetoText
- In / out price
- $3.00 / $15.00per 1M
- Context
- 256K
- Released
- Dec 13, 2025
Providers
RedPill routes this private model across verified providers with automatic fallbacks. Pricing is unified, so you pay the same price no matter which provider serves your request, while live metrics show first-token latency, speed, and uptime.
| x-ai | Checking | Checking | Checking |
Gateway API
Call this model through RedPill's OpenAI-compatible API.
- Create an API key
- Set
REDPILL_API_KEY - Run the request
Working with agentsConnect RedPill to agent frameworks and runtimes.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.redpill.ai/v1",
apiKey: process.env.REDPILL_API_KEY,
});
const response = await client.chat.completions.create({
model: "x-ai/grok-4",
messages: [{ role: "user", content: "Say hello." }],
});