DeepSeek V4.1 Flash Fast API Pricing

DeepSeek V4.1 Flash Fast pricing by provider

1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

What DeepSeek V4.1 Flash Fast costs in practice

1,000 requests with 2,000 input and 500 output tokens each

100 long-document requests with 100,000 input and 2,000 output tokens each

DeepSeek V4.1 Flash Fast features

• Function calling
• Structured output
• Image input
• Reasoning
• Prompt caching

Use DeepSeek V4.1 Flash Fast with LiteLLM

Call DeepSeek V4.1 Flash Fast through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

from litellm import completion

response = completion(
    model="baseten/deepseek-ai/DeepSeek-V4.1-Flash-Fast",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: deepseek-v4.1-flash-fast
    litellm_params:
      model: baseten/deepseek-ai/DeepSeek-V4.1-Flash-Fast
      # credentials: see the provider's LiteLLM docs page

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "deepseek-v4.1-flash-fast",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

DeepSeek V4.1 Flash Fast FAQ

More DeepSeek models

• DeepSeek V4.1 Flash$0.15 / $0.60 per 1M tokens
• DeepSeek V4 Flash Vision Exp$0.30 / $1.20 per 1M tokens
• DeepSeek V4 Flash$0.30 / $1.20 per 1M tokens
• DeepSeek V4 Flash Thinking$0.25 / $1.75 per 1M tokens
• DeepSeek V4 Pro$1.32 / $3.96 per 1M tokens
• DeepSeek V4p1 Flash Us$0.45 / $1.80 per 1M tokens
• DeepSeek Flash$0.30 / $1.20 per 1M tokens
• DeepSeek Ocr 2$0.03 / $0.03 per 1M tokens