DeepSeek

DeepSeek: DeepSeek Reasoner (V4)

stable

DeepSeek Reasoner (V4) is available through Everstack's OpenAI-compatible gateway with routing, fallback, retries, and observability.

deepseek-reasonerdeepseek-v4released Dec 1, 2025
ProviderQuick start
Context
1M
tokens
Max output
384K
tokens
Input
$0.14
per 1M
Output
$0.28
per 1M

Activity

Daily period usage
Aggregated managed Everstack traffic. Buckets below 5 tenants or 100 requests are withheld.

Providers

ProviderContextInput /MOutput /M
DeepSeek
DeepSeek
1M$0.14$0.28

Pricing

ItemPriceUnit
Input$0.14per 1M tokens
Output$0.28per 1M tokens

Performance

Reliability

Compare

Compare usage and performance
Place this model beside up to three other catalog models.

Capabilities

Capabilities
Modalities
Input
Output
Details
Model ID
deepseek-reasoner
Family
deepseek-v4
Status
stable
Knowledge
-
Released
Dec 1, 2025
Gateway Config
API
v1
Auth
DEEPSEEK_API_KEY
Discovery
static
Provider type
static

Quick Start

index.ts
import Everstack from "@everstack/node";const client = new Everstack({  apiKey: process.env.EVERSTACK_API_KEY!,  baseUrl: "https://{instance}.{region}.everstack.ai",});const completion = await client.chat.completions.create({  model: "@deepseek/deepseek-reasoner",  messages: [{ role: "user", content: "Explain vector cache routing." }],});console.log(completion.choices[0]?.message?.content);

Endpoint

Base URL
https://api.deepseek.com
Chat completions
https://api.deepseek.com/chat/completions
Model
deepseek-reasoner
Auth env
DEEPSEEK_API_KEY

DeepSeek Reasoner (V4) FAQ

How much does the DeepSeek Reasoner (V4) API cost?

Through DeepSeek, DeepSeek Reasoner (V4) costs $0.14 per 1M input tokens and $0.28 per 1M output tokens.

What is the context window of DeepSeek Reasoner (V4)?

DeepSeek Reasoner (V4) accepts up to 1M tokens of context and returns up to 384K output tokens on DeepSeek.

What can DeepSeek Reasoner (V4) do?

DeepSeek Reasoner (V4) supports chat, function calling and reasoning. It accepts text input.

How do I call DeepSeek Reasoner (V4) through Everstack?

Point any OpenAI-compatible SDK at your Everstack gateway and set the model to @deepseek/deepseek-reasoner. Everstack adds retries, provider fallback, caching, per-tenant budgets and OpenTelemetry traces for every request.