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D

DeepSeek V4.1 Flash

DeepSeekModel IDdeepseek-v4.1-flash
D

DeepSeek V4.1 Flash

DeepSeekModel IDdeepseek-v4.1-flash

DeepSeek V4.1 Flash is DeepSeek's high-efficiency multimodal reasoning model designed for fast inference, coding, agentic workflows, tool use, and visual understanding. It supports both thinking and non-thinking modes, native image understanding, a 1M-token context window, and up to 384K output tokens.

ModeText / Image → Text
Input price$0.15
Output price$0.6
Context length1M tokens

Capabilities & limits

Use cases
Not available
Model capabilities
Not available
Model Brand
DeepSeek
Input modality
Text / Image
Output modality
Text
Max output
384K tokens

Pricing

ProviderBilling typePrice summary
D
DeepSeek-Balanced
Expression
Input price$0.15per 1M tokens
Completion price$0.6per 1M tokens
Cache read price$0.003per 1M tokens
Cache write price—
D
DeepSeek-Custom
Expression
Input price$0.15per 1M tokens
Completion price$0.6per 1M tokens
Cache read price$0.003per 1M tokens
Cache write price—

Integration

Code Example

curl http://127.0.0.1:4179/v1/messages \
  -H "Authorization: Bearer <YOUR_API_KEY>" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4.1-flash",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

Replace <YOUR_API_KEY> with the API key generated on your token management page.

Authentication

All requests must include the Authorization: Bearer <TOKEN> header.

Endpoint Path

POST
Anthropic Messages

Supported Parameters

ParameterTypeDefaultDescription
integer-Maximum number of output tokens. DeepSeek V4.1 Flash supports up to 384K output tokens.
booleanfalseWhether to stream the response incrementally.
stringhighControls reasoning effort. Supported levels include low, high, and max.

Rate Limits

RPM

No rate limits configured

RPM = requests per minute.