Claude Sonnet 4

Claude Sonnet 4 specifications

Claude Sonnet 4 pricing in rubles

You pay for what you use, per token and per unit. The final request cost is returned in the API response.

Prices are in rubles and may change with exchange rates.

What Claude Sonnet 4 can do

• Function calling
• Streaming responses

Claude Sonnet 4 API: connection and code examples

The service exposes a single OpenAI-compatible API. Set our base_url and the key from your dashboard.

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.neuralbridge.ru/v1",
)

response = client.chat.completions.create(
    model="anthropic/claude-sonnet-4-11594",
    messages=[{"role": "user", "content": "Привет! Расскажи о себе."}],
)

print(response.choices[0].message.content)

import requests

response = requests.post(
    "https://api.neuralbridge.ru/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
        "model": "anthropic/claude-sonnet-4-11594",
        "messages": [{"role": "user", "content": "Привет! Расскажи о себе."}],
    },
)

print(response.json()["choices"][0]["message"]["content"])

curl https://api.neuralbridge.ru/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-4-11594",
    "messages": [{"role": "user", "content": "Привет! Расскажи о себе."}]
  }'

API endpoints

Supported request parameters