AI Rate CardDeepSeek: DeepSeek V4.1 Flash Ultrafast · fastrouter
DeepSeek V4.1 Flash Ultrafast is OpenGateway's high-throughput serving tier of DeepSeek's open-weight V4.1 Flash multimodal reasoning model. It accepts text and images and returns text, with a 1M-token context window, configurable reasoning effort, and tool calling through an OpenAI-compatible chat completions endpoint. Pricing is tiered, with higher rates once total input exceeds 256K tokens.
Entrée, $/1M $0.32
Sortie, $/1M $1.30
Lecture cache $0.0065
Écriture cache —
Contexte 1 048 576
Sortie max. 384 000
Accepte images, texte
Dernière vérification 04.11.2026 12:00:14 UTC
Source page du fournisseur
Alertes de prix
API
API compatible OpenAI : les SDK officiels d'OpenAI fonctionnent avec cette URL de base. Remplacez YOUR_API_KEY par votre clé du fournisseur.
| URL de base de l'API | |
|---|---|
| Point de terminaison | |
| ID du modèle | |
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-ultrafast", "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-ultrafast",
"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-ultrafast",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
}),
});
console.log(await r.json());Requête (JSON)
{
"model": "deepseek/deepseek-v4.1-flash-ultrafast",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
}Réponse (JSON)
{
"id": "chatcmpl-...",
"object": "chat.completion",
"model": "deepseek/deepseek-v4.1-flash-ultrafast",
"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
}
}L'adresse provient de la liste de modèles du fournisseur ; vérifiez-la dans sa documentation.
Source: AI Rate Card, https://airatecard.com/fr/c/offer%3Afastrouter%7Cdeepseek/deepseek-v4.1-flash-ultrafast, prices checked 2026-11-04; seller's page: https://fastrouter.ai
Détails techniques
ID: offer:fastrouter|deepseek/deepseek-v4.1-flash-ultrafast