Anthropic Extended Thinking

from anthropic import Anthropic
import os

client = Anthropic(
    base_url="https://api.neosantara.xyz/anthropic",
    api_key=os.environ["NEOSANTARA_API_KEY"]
)

response = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=4096,
    thinking={
        "type": "enabled",
        "budget_tokens": 2048
    },
    messages=[
        {"role": "user", "content": "How many 'r' letters are in the word 'strawberry'?"}
    ]
)

for block in response.content:
    if block.type == "thinking":
        print(f"[Thinking Process]:\n{block.thinking}\n")
    elif block.type == "text":
        print(f"[Final Answer]:\n{block.text}")

curl -X POST https://api.neosantara.xyz/anthropic/v1/messages \
  -H "x-api-key: $NEOSANTARA_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 4096,
    "thinking": {
      "type": "enabled",
      "budget_tokens": 2048
    },
    "messages": [
      {"role": "user", "content": "How many r in strawberry?"}
    ]
  }'