DeepSeek V4 Flash 0731

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows. This is the GA release of DeepSeek V4 Flash.

ChatDeepSeek1M tokens$0.0872 / $0.1962 · 1M

deepseek/deepseek-v4-flash-0731

Context
1M tokens
Completion cap
384,000
Tools
Yes
JSON
Yes
Released
2026-07-31

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-v4-flash-0731",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows. This is the GA release of DeepSeek V4 Flash. DeepSeek V4 Flash 0731 runs on the Geek Hub API (OpenAI-compatible). Model id: deepseek/deepseek-v4-flash-0731.
Is DeepSeek V4 Flash 0731 free?
No. Input is $0.0872 per 1M tokens and output is $0.1962 per 1M tokens on Geek Hub (markup included).
What is the context length of DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 has a 1M tokens context window. It supports up to 384,000 completion tokens.
Does DeepSeek V4 Flash 0731 support tool calling and structured outputs?
DeepSeek V4 Flash 0731 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
When was DeepSeek V4 Flash 0731 released?
DeepSeek V4 Flash 0731 was released on 2026-07-31.

More models from DeepSeek