AI Rate Card

OpenAI: GPT-4.1 · fastrouter

GPT-4.1 is OpenAI's latest flagship model showcasing significant advances in coding, instruction following, and long-context understanding. It processes up to 1 million tokens (approximately 750,000 words) in a single context window, with knowledge updated to June 2024. Performance benchmarks demonstrate substantial improvements over GPT-4o, including 54.6% completion on SWE-bench Verified coding tasks (21.4% increase) and 38.3% on MultiChallenge instruction following (10.5% increase). The model excels at real-world software engineering with reduced extraneous edits (from 9% to 2%), superior code exploration capabilities, and enhanced long-document comprehension. GPT-4.1 provides improved agentic reliability while maintaining a lower price point than its predecessors, making it particularly valuable for development environments, document analysis, and enterprise knowledge systems.

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Entrée, $/1M $2.00

Sortie, $/1M $8.00

Lecture cache $0.50

Écriture cache —

Contexte 1 047 576

Sortie max. 32 768

Accepte fichiers, images, texte

Dernière vérification 04.11.2026 12:00:14 UTC

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API

API compatible OpenAI : les SDK officiels d'OpenAI fonctionnent avec cette URL de base. Remplacez YOUR_API_KEY par votre clé du fournisseur.

URL de base de l'API
https://go.fastrouter.ai/api/v1
Point de terminaison
https://go.fastrouter.ai/api/v1/chat/completions
ID du modèle
openai/gpt-4.1
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-4.1", "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-4.1",
      "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-4.1",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());
Requête (JSON)
{
  "model": "openai/gpt-4.1",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}
Réponse (JSON)
{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "openai/gpt-4.1",
  "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
  }
}

L'adresse provient de la liste de modèles du fournisseur ; vérifiez-la dans sa documentation.

Documentation API du fournisseur

Source: AI Rate Card, https://airatecard.com/fr/c/offer%3Afastrouter%7Copenai/gpt-4.1, prices checked 2026-11-04; seller's page: https://fastrouter.ai/models/openai/gpt-4.1

Détails techniques

ID: offer:fastrouter|openai/gpt-4.1