DeepSeek V4.1 Flash 1017

tools vision

deepseek-v4.1-flash-1017DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name.

Try in playground

Input / 1M tokens

$0.15

$0.00000015 / token

Output / 1M tokens

$0.6

$0.0000006 / token

Cached input / 1M

$0.003

Uptime · 24h

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No traffic yet

Details

Type: Chat
Input: text, image
Output: text
Context: 1,048,576 tokens

Supported parameters

max_tokenstemperaturetop_pstopseedpresence_penaltyfrequency_penaltyresponse_formatpluginstoolstool_choiceparallel_tool_calls

Last 24 hours

Requests per hour; red = provider errors.

Avg latency: —
Avg first token: —
Throughput: —

Use it

curl https://api.ultragpt.pro/v1/chat/completions \
  -H "Authorization: Bearer $ULTRAGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4.1-flash-1017",
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'

Anthropic SDK / Claude Code

curl https://api.ultragpt.pro/v1/messages \
  -H "x-api-key: $ULTRAGPT_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4.1-flash-1017",
    "max_tokens": 1024,
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'