DeepSeek V4.1 FlashOpen

curl https://api.deepseek.com/v1/chat/completions \
  -H "Authorization: Bearer $DEEPSEEK_API_KEY" \
  -H "content-type: application/json" \
  -d '{
    "model": "deepseek-v4-1-flash",
    "messages": [{"role": "user", "content": "Refactor this function for O(n) time and explain the change."}]
  }'

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.deepseek.com/v1",
    api_key=os.environ["DEEPSEEK_API_KEY"],
)

resp = client.chat.completions.create(
    model="deepseek-v4-1-flash",
    messages=[{"role": "user", "content": "Refactor this function for O(n) time and explain the change."}],
)
print(resp.choices[0].message.content)

const res = await fetch("https://api.deepseek.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.DEEPSEEK_API_KEY}`,
    "content-type": "application/json",
  },
  body: JSON.stringify({
    model: "deepseek-v4-1-flash",
    messages: [{ role: "user", content: "Refactor this function for O(n) time and explain the change." }],
  }),
});
console.log((await res.json()).choices[0].message.content);