About DeepSeek V4 Pro
DeepSeek V4 Pro is the top-tier model of the V4 family, targeting advanced reasoning, coding, and complex multi-step tasks. The Mixture-of-Experts architecture activates 49B parameters per token out of a 1.6T total, and the model supports structured outputs and tool use natively.
| Metric | Value |
|---|---|
| Parameter Count | 1.6 trillion (49 billion active) |
| Mixture of Experts | Yes |
| Active Parameter Count | 49 billion |
| Context Length | 1,048,576 tokens |
| Multilingual | Yes |
| Tool Use | Yes |
| Structured Outputs | Yes |
Ready to build with DeepSeek V4 Pro?
Try DeepSeek V4 Pro in the Workbench to prompt it, compare outputs, and iterate on prompts without writing any code. When you're ready to ship, call the same model from our API and build your own apps on top of it.
curl -sSf -X POST https://hub.oxen.ai/api/ai/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $OXEN_API_KEY" \
-d '{
"model": "deepseek-v4-pro",
"messages": [
{
"role": "user",
"content": "Try sending a message."
}
]
}'API endpoint
See the API reference for request and response formats.
POST
https://hub.oxen.ai/api/ai/chat/completions