DeepSeek V4.1 Flash

About the model

DeepSeek V4.1 Flash is the cost-efficient tier of DeepSeek's V4.1 family, and this release, 1017, is its October 2026 update. It's a 552B-parameter Mixture-of-Experts model that activates 8B parameters while reading input and 16B while generating output, which keeps costs low for input-heavy work like agents. It has a 1M-token context window and native image understanding.

Start building

OpenAI compatible: point your code or coding agent at Verda Inference with your API key and the model ID deepseek-4-1-flash-1017 .

curl -X POST "https://inference.verda.com/v1/chat/completions" \
  -H "Authorization: Bearer ${VERDA_INFERENCE_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-4-1-flash-1017",
    "messages": [
      {
        "role": "user",
        "content": "What is the best viewpoint in Helsinki?"
      }
    ],
    "max_tokens": 2048
  }'

What it's good at