DeepSeek V4.1 Flash

Newest DeepSeek Flash release.

Served by DeepSeek-V4.1-Flash-1017. Peak pricing applies 01:00-04:00 and 06:00-10:00 UTC Mon-Fri; off-peak is half price.

Make your first request

{
  "model": "deepseek-v4.1-flash",
  "messages": [
    {
      "role": "user",
      "content": "Hello, world."
    }
  ]
}