Anthropic: Claude Opus 4.1 · fastrouter

Claude Opus 4.1, a direct replacement for Opus 4, excels in real-world coding and agentic tasks with enhanced performance and precision. It autonomously handles complex, end-to-end development tasks, adapting to user styles while maintaining high-quality output, particularly in frontend code generation and intricate logic. With superior long-horizon task management and problem-solving, it serves as an ideal virtual collaborator for sustained reasoning and multi-step actions. Opus 4.1 also boosts AI agent capabilities, enabling accurate execution of complex tasks and shining in agentic search, research, content creation, and context management for comprehensive insights and high-quality summarization.

Modèle de base Tous les modèles de cette base Tous les modèles du fournisseur vers le fournisseur

Entrée, $/1M $15.00

Sortie, $/1M $75.00

Lecture cache $1.50

Écriture cache —

Contexte 200 000

Sortie max. 32 000

Accepte fichiers, images, texte

Dernière vérification 04.11.2026 12:00:14 UTC

Source page du fournisseur

Alertes de prix

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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	`anthropic/claude-opus-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": "anthropic/claude-opus-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": "anthropic/claude-opus-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": "anthropic/claude-opus-4.1",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());

Requête (JSON)

{
  "model": "anthropic/claude-opus-4.1",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}

Réponse (JSON)

{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "anthropic/claude-opus-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%7Canthropic/claude-opus-4.1, prices checked 2026-11-04; seller's page: https://fastrouter.ai/models/anthropic/claude-opus-4.1

Détails techniques

ID: offer:fastrouter|anthropic/claude-opus-4.1