Claude Opus 5.5 API

US Anthropic | publié 2026-10

Essayer dans le bac à sable → Obtenir une clé API

Claude Opus 5.5 is the Anthropic flagship, built for high-difficulty reasoning, serious code development and long-horizon agent tasks. It extends the Opus line’s strengths in sustained autonomy and nuanced instruction following, available through MeshTok with a million-token context window.

RaisonnementCodeOutilsPremiumcap.vision

Tarifs (officiel, par 1M tokens)

Entrée

$4.00/M

Sortie

$20.00/M

Spécifications

Fenêtre de contexte1000K tokens Modalités d'entréeTexte StreamingOui APICompatible OpenAI

Comment utiliser Claude Opus 5.5

Remplacement direct d'OpenAI. Changez base_url et modèle.

# Python - pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://meshtok.com/v1",
    api_key="sk-your-MeshTok-key",
)

resp = client.chat.completions.create(
    model="anthropic/claude-opus-5.5",
    messages=[{"role":"user","content":"Hello!"}],
)
print(resp.choices[0].message.content)

# cURL
curl https://meshtok.com/v1/chat/completions \
  -H "Authorization: Bearer sk-your-MeshTok-key" \
  -H "Content-Type: application/json" \
  -d '{"model":"anthropic/claude-opus-5.5","messages":[{"role":"user","content":"Hello!"}]}'