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DeepSeek V4.1 Flash
deepinfra/
Deepinfra model · Served by DeepInfra · live on the gateway
Input / 1M
$0.200
Output / 1M
$0.600
Context
1M tokens
Max output
384K tokens
Input
Text, Image
Released
1mo ago
Pricing
Input tokens$0.200 per 1M
Output tokens$0.600 per 1M
Provider list priceExactly what your balance is debited; our fee is charged when you buy credits
About DeepSeek V4.1 Flash
DeepSeek V4.1 Flash model for reasoning and agentic coding
VisionReasoningTools
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": "deepinfra/deepseek-ai/deepseek-v4.1-flash",
"messages": [{ "role": "user", "content": "Hello" }]
}'Frequently asked
How do I call DeepSeek V4.1 Flash 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 deepinfra/deepseek-ai/deepseek-v4.1-flash. The chat completions endpoint is https://rapidrouter.ai/api/v1/chat/completions.
What is the context window of DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash has a context window of 1,000,000 tokens on Rapid Router, and returns up to 384,000 output tokens per reply.
What can DeepSeek V4.1 Flash do?
On Rapid Router, DeepSeek V4.1 Flash supports tool calling, JSON mode, image input, extended reasoning.