DeepSeek V4 Flash 0731
deepseek/
DeepSeek model · Served by DeepInfra · live on the gateway · :free available
Pricing
About DeepSeek V4 Flash 0731
Official DeepSeek V4 Flash release with enhanced agentic capabilities and integrated DSpark speculative decoding
What it supports
- Tool calling (function calling)
- JSON mode and structured output
- Image input (vision)
- Audio input
- Extended reasoning
- Streaming responses
- OpenAI SDK, Anthropic SDK and any OpenAI-compatible client
Make a request
curl https://rapidrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $RAPIDROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "deepseek/deepseek-v4-flash-0731",
"messages": [{ "role": "user", "content": "Hello" }]
}'Frequently asked
How do I call DeepSeek V4 Flash 0731 through an OpenAI-compatible API?
Point any OpenAI-compatible client at https://rapidrouter.ai/api/v1 with a Rapid Router API key and set the model to deepseek/deepseek-v4-flash-0731. The chat completions endpoint is https://rapidrouter.ai/api/v1/chat/completions.
What is the context window of DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 has a context window of 1,048,576 tokens on Rapid Router, and returns up to 943,718 output tokens per reply.
Is there a free version of DeepSeek V4 Flash 0731?
Yes. Call deepseek/deepseek-v4-flash-0731:free and the request is paid for from Rapid Router's sponsored daily pool, within the free tier's daily request limit.
What can DeepSeek V4 Flash 0731 do?
On Rapid Router, DeepSeek V4 Flash 0731 supports tool calling, JSON mode, extended reasoning.