Claude Sonnet 4.5 · abacus

Claude Sonnet 4.5 advances over its predecessor, Sonnet 4, delivering stronger coding and reasoning performance with greater precision and control. Makes agentic programming better. It excels in tasks requiring long, complex reasoning chains, but is also expensive.

Basismodell Alle Modelle dieser Basis Alle Modelle des Anbieters zum Anbieter

Eingabe, $/1M $3.00

Ausgabe, $/1M $15.00

Kontext 200 000

Max. Ausgabe 64 000

Akzeptiert Bilder, Text

Zuletzt geprüft 04.11.2026 12:00:14 UTC

Quelle Seite des Anbieters

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API

OpenAI-kompatible API: Die offiziellen OpenAI-SDKs funktionieren mit dieser Basis-URL. Ersetzen Sie YOUR_API_KEY durch Ihren Schlüssel vom Anbieter.

API-Basis-URL	`https://routellm.abacus.ai/v1`
Endpunkt	`https://routellm.abacus.ai/v1/chat/completions`
Modell-ID	`claude-sonnet-4-5-20250929`

curl

curl https://routellm.abacus.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "claude-sonnet-4-5-20250929", "messages": [{"role": "user", "content": "Hello!"}], "max_tokens": 256}'

Python

import requests

r = requests.post(
    "https://routellm.abacus.ai/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "claude-sonnet-4-5-20250929",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ],
      "max_tokens": 256
    },
)
print(r.json())

JavaScript

const r = await fetch("https://routellm.abacus.ai/v1/chat/completions", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "claude-sonnet-4-5-20250929",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());

Anfrage (JSON)

{
  "model": "claude-sonnet-4-5-20250929",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}

Antwort (JSON)

{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "claude-sonnet-4-5-20250929",
  "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
  }
}

Die Adresse stammt aus der Modellliste des Anbieters; bitte mit seiner Dokumentation abgleichen.

API-Dokumentation des Anbieters

Source: AI Rate Card, https://airatecard.com/de/c/offer%3Aabacus%7Cclaude-sonnet-4-5-20250929, prices checked 2026-11-04; seller's page: https://abacus.ai

Technische Details

ID: offer:abacus|claude-sonnet-4-5-20250929