AI Rate Card

OpenAI: GPT-5.3-Codex · fastrouter

GPT-5.3-Codex is OpenAI's most capable agentic coding model to date, combining frontier coding performance with general work automation capabilities—enabling developers and professionals to automate complex tasks across the entire software lifecycle, from code writing to infrastructure management and cybersecurity.

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Entrada, $/1M $1.75

Saída, $/1M $14.00

Leitura de cache $0.17

Gravação de cache —

Contexto 400 000

Saída máx. 128 000

Aceita imagens, texto

Última verificação 04.11.2026 12:00:14 UTC

Fonte página do provedor

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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
openai/gpt-5.3-codex
curl
curl https://go.fastrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "openai/gpt-5.3-codex", "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": "openai/gpt-5.3-codex",
      "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": "openai/gpt-5.3-codex",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());
Requisição (JSON)
{
  "model": "openai/gpt-5.3-codex",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}
Resposta (JSON)
{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "openai/gpt-5.3-codex",
  "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%7Copenai/gpt-5.3-codex, prices checked 2026-11-04; seller's page: https://fastrouter.ai/models/openai/gpt-5.3-codex

Dados técnicos

ID: offer:fastrouter|openai/gpt-5.3-codex