AI Rate CardDeepSeek V4.1 Flash · ofox
DeepSeek V4.1 Flash is DeepSeek's latest efficiency-optimized Mixture-of-Experts model with a 1M-token context window and up to 384K output tokens. It adds native multimodal vision understanding, supports thinking mode (on by default), tool calls, JSON output and prompt caching, and per DeepSeek surpasses V4 Pro on quality, cost and speed. Served upstream under the official model id deepseek-flash.
Input, $/1M $0.30
Output, $/1M $1.20
Cache read $0.006
Cache write —
Context 1 000 000
Max output 384 000
Accepts images, text
Last checked 04.11.2026 12:00:14 UTC
Source provider's page
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API
OpenAI-compatible API: the official OpenAI SDKs work with this base URL. Replace YOUR_API_KEY with your key from the provider.
| API base URL | |
|---|---|
| Endpoint | |
| Model id | |
curl
curl https://api.ofox.ai/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "deepseek/deepseek-v4.1-flash", "messages": [{"role": "user", "content": "Hello!"}], "max_tokens": 256}'Python
import requests
r = requests.post(
"https://api.ofox.ai/v1/chat/completions",
headers={"Authorization": "Bearer YOUR_API_KEY"},
json={
"model": "deepseek/deepseek-v4.1-flash",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
},
)
print(r.json())JavaScript
const r = await fetch("https://api.ofox.ai/v1/chat/completions", {
method: "POST",
headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
body: JSON.stringify({
"model": "deepseek/deepseek-v4.1-flash",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
}),
});
console.log(await r.json());Request (JSON)
{
"model": "deepseek/deepseek-v4.1-flash",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
}Response (JSON)
{
"id": "chatcmpl-...",
"object": "chat.completion",
"model": "deepseek/deepseek-v4.1-flash",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Hi! How can I help?"
},
"finish_reason": "stop"
}
],
"usage": {
"prompt_tokens": 9,
"completion_tokens": 12,
"total_tokens": 21
}
}The address is taken from the provider's model list; check it against the provider's documentation.
Source: AI Rate Card, https://airatecard.com/en/c/offer%3Aofox%7Cdeepseek/deepseek-v4.1-flash, prices checked 2026-11-04; seller's page: https://ofox.ai/models/deepseek/deepseek-v4.1-flash
Technical details
ID: offer:ofox|deepseek/deepseek-v4.1-flash