Grok 4 · fastrouter

Grok 4, launched by xAI in July 2025, represents a significant leap in large language model development. Building on earlier versions like Grok 3 and the original 2023–24 models, Grok 4 introduces several key enhancements aimed at performance, versatility, and real-world application. It features an extended context window of up to 256,000 tokens, enabling it to process long documents, codebases, or conversations with greater depth and continuity. The model demonstrates strong performance in advanced reasoning tasks, including mathematics and programming. Its architecture supports multimodal input, with capabilities for vision and voice currently in development, and introduces advanced voice interaction with faster response times and more natural flow.

Modelo base Todos os modelos desta base Todos os modelos do provedor ao provedor

Entrada, $/1M $3.00

Saída, $/1M $15.00

Leitura de cache $0.75

Gravação de cache $15.00

Contexto 256 000

Saída máx. 64 000

Aceita texto

Última verificação 04.11.2026 12:26:37 UTC

Fonte página do provedor

Alertas de preço

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API

API compatível com OpenAI: os SDKs oficiais da OpenAI funcionam com esta URL base. Substitua YOUR_API_KEY pela sua chave do provedor.

URL base da API	`https://go.fastrouter.ai/api/v1`
Endpoint	`https://go.fastrouter.ai/api/v1/chat/completions`
ID do modelo	`x-ai/grok-4`

curl

curl https://go.fastrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "x-ai/grok-4", "messages": [{"role": "user", "content": "Hello!"}], "max_tokens": 256}'

Python

import requests

r = requests.post(
    "https://go.fastrouter.ai/api/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "x-ai/grok-4",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ],
      "max_tokens": 256
    },
)
print(r.json())

JavaScript

const r = await fetch("https://go.fastrouter.ai/api/v1/chat/completions", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "x-ai/grok-4",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());

Requisição (JSON)

{
  "model": "x-ai/grok-4",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}

Resposta (JSON)

{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "x-ai/grok-4",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hi! How can I help?"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 9,
    "completion_tokens": 12,
    "total_tokens": 21
  }
}

O endereço vem da lista de modelos do provedor; confira na documentação dele.

Documentação da API do provedor

Source: AI Rate Card, https://airatecard.com/pt/c/offer%3Afastrouter%7Cx-ai/grok-4, prices checked 2026-11-04; seller's page: https://fastrouter.ai

Dados técnicos

ID: offer:fastrouter|x-ai/grok-4