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DeepSeek

DeepSeek V4.1 Flash 1017

deepseek-v4.1-flash-fast

Available in browser Chat and through the OpenAI-compatible API.

Open ChatAPI example

Token pricing

Prices in USD per 1 million tokens

Input / 1M
$0.010
Cached / 1M
$0.002
Output / 1M
$0.080

Model specifications

DeepSeek · standard

Context window
1,048,576 tokens
Maximum output
262,144 tokens
Capabilities
Text · Streaming · Tool calling

Measured performance

Avg. tokens/sec
115.8
TTFT estimate
—
Uptime
97.9%

Updated 11/4/26, 5:40:40 PM UTC · 24h request success rate · A dash means there is not enough current measurement data.

Use this model through the API

Create an API key and add prepaid credits. Set UNCENSOREDLABS_API_KEY in your environment. Install the openai package for the JavaScript or Python example.

curl --no-buffer https://uncensoredlabs.dev/v1/chat/completions \
  -H "Authorization: Bearer $UNCENSOREDLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4.1-flash-fast",
    "messages": [{"role": "user", "content": "Hello, world."}],
    "max_tokens": 256,
    "stream": true
  }'
OpenAI-compatible. Change your base URL.Read the quickstart