MODELS / DEEPSEEK

DeepSeek V4.1 Flash

DeepSeek V4.1 Flash is an AI model from DeepSeek designed for fast, efficient multimodal interactions. It combines native multimodal capabilities with a new architecture focused on stronger performance, faster responses, and lower computational cost.

TEXTREASONINGREASONINGTOOL-USEIMPLICIT-CACHINGVISIONSTRUCTURED-OUTPUTOPEN-WEIGHTS
1.0M
CONTEXT WINDOW
32.8K
MAX OUTPUT TOKENS
$0.3
INPUT PRICE / 1M TOKENS
$1.20
OUTPUT PRICE / 1M TOKENS
QUICKSTART

Call it in one request.

OpenAI-compatible: change the base URL, and the setup is complete.

curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/deepseek/deepseek-v4.1-flash",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything DeepSeek V4.1 Flash supports, in one table.

MODEL ID
blackboxai/deepseek/deepseek-v4.1-flash
DEVELOPED BY
DeepSeek
MODEL TYPE
Text
RELEASED
Sep 8, 2026
CONTEXT WINDOW
1.0M
MAX OUTPUT TOKENS
32.8K
INPUT MODALITIES
text, image
OUTPUT MODALITIES
text
INPUT PRICE
$0.3 / 1M tokens
OUTPUT PRICE
$1.20 / 1M tokens
CACHE READ
$0.007 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Enterprise · single-tenant
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoningresponse_formatstructured_outputs