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DeepSeek V4 Flash 0731

deepseek/deepseek-v4-flash-0731

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows.

Use in agentGet API key
Input price
$0.44USD / 1M tokens
Output price
$1.32USD / 1M tokens
Context window
N/A
Max output
384K

Try the model

Playground

Open playground
Input⌘ / Ctrl + Enter

Try a prompt

384K max output
Input $0.44/M · Output $1.32/M · Cache read $0.01/M
OutputReady

Your response will appear here

Choose an example or write a prompt, then click Run.

Specifications

Pricing

Input
$0.44 / 1M tokens
Output
$1.32 / 1M tokens
Billing formula
usage.prompt_tokens * 0.44 / 1000000 + usage.completion_tokens * 1.32 / 1000000 + usage.cached_tokens * 0.000008 / 1000000

Context & modalities

Max output
384,000 tokens
Input
Text
Output
Text

Capabilities

Chat
Supported
Vision
Not supported
Reasoning
Supported
Structured output
Supported
Function calling
Supported
Audio input
Not supported

Access

Provider
DeepSeek
Model ID
deepseek/deepseek-v4-flash-0731
Execution
sync
API
Chat Completions API
Endpoint
/v1/chat/completions

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Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API
Chat Completions API endpoint
https://api.sandbase.ai/v1/chat/completions
Model ID
deepseek/deepseek-v4-flash-0731
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/chat/completions" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "deepseek/deepseek-v4-flash-0731",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}
SANDBASE_JSON
)
printf '%s\n' "$result"

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