Anthropic: Claude Sonnet 5.5 is a high-performance model from OpenRouter with a 1M context window, supporting vision understanding, function calling. Priced at $0.0020/1K input, $0.010/1K output.
Limited routing data available for Anthropic: Claude Sonnet 5.5. Intelligence insights will appear as more requests are routed through ANT.
from openai import OpenAI
client = OpenAI(
base_url="https://api.antbase.ai/v1",
api_key="YOUR_ANT_API_KEY",
)
response = client.chat.completions.create(
model="anthropic/claude-sonnet-5.5",
messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)