AI Rate CardDeepSeek: DeepSeek V4.1 Flash · fastrouter
DeepSeek-V4.1-Flash is a multimodal Mixture-of-Experts model with a 552B-parameter backbone, activating just 8B parameters per token during prefill and 16B during decoding. It natively processes images and text, supports a 1M-token context window, and introduces a Causal Encoder-Decoder architecture with Compressed Sparse Attention 2 to make long-context inference more efficient. Configurable reasoning-effort levels let developers trade latency and cost for deeper deliberation. Compared with DeepSeek-V4-Flash-0731, it reduces the global KV-cache footprint by roughly 4x while delivering stronger coding, reasoning, and agentic performance.
Вход, $/1M $0.14
Выход, $/1M $0.42
Чтение из кэша $0.0042
Запись в кэш —
Контекст 1 048 576
Макс. выход 943 718
Принимает картинки, текст
Последняя проверка 04.11.2026 12:00:14 UTC
Источник страница провайдера
Уведомления о ценах
API
API, совместимый с OpenAI: подходят официальные SDK OpenAI с этим адресом. YOUR_API_KEY замените на свой ключ от провайдера.
| Адрес API | |
|---|---|
| Эндпоинт | |
| Модель (id в API) | |
curl
curl https://go.fastrouter.ai/api/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://go.fastrouter.ai/api/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://go.fastrouter.ai/api/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());Запрос (JSON)
{
"model": "deepseek/deepseek-v4.1-flash",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
}Ответ (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
}
}Адрес взят из списка моделей провайдера - сверьте с его документацией.
Source: AI Rate Card, https://airatecard.com/ru/c/offer%3Afastrouter%7Cdeepseek/deepseek-v4.1-flash, prices checked 2026-11-04; seller's page: https://fastrouter.ai/models/deepseek/deepseek-v4.1-flash
Технические данные
ID: offer:fastrouter|deepseek/deepseek-v4.1-flash