DeepSeek V4.1 Flash

V4.1 Flash refresh. ~1M context. More capable than V4 Flash at still-aggressive pricing.

ChatDeepSeek1M tokens$0.327 / $1.3081 · 1M

deepseek/deepseek-v4.1-flash

Context
1M tokens
Completion cap
943,718
Tools
No
JSON
No
Released
2026-09-10

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-v4.1-flash",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is DeepSeek V4.1 Flash?
V4.1 Flash refresh. ~1M context. More capable than V4 Flash at still-aggressive pricing. DeepSeek V4.1 Flash runs on the Geek Hub API (OpenAI-compatible). Model id: deepseek/deepseek-v4.1-flash.
Is DeepSeek V4.1 Flash free?
No. Input is $0.327 per 1M tokens and output is $1.3081 per 1M tokens on Geek Hub (markup included).
What is the context length of DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash has a 1M tokens context window. It supports up to 943,718 completion tokens.
Does DeepSeek V4.1 Flash support tool calling and structured outputs?
DeepSeek V4.1 Flash does not advertise tool calling on this endpoint. Structured outputs are not listed for this endpoint.
When was DeepSeek V4.1 Flash released?
DeepSeek V4.1 Flash was released on 2026-09-10.

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