What is DeepSeek V4 Pro 0423's context window?

DeepSeek V4 Pro 0423 supports a context window of 1,000,000 tokens, allowing you to process large documents and maintain long conversations.

How to use DeepSeek V4 Pro 0423 API via Ofox?

Simply set your base URL to https://api.ofox.run/v1 and use your Ofox API key. The API is OpenAI-compatible — just change the base URL and API key in your existing code.

What capabilities does DeepSeek V4 Pro 0423 support?

DeepSeek V4 Pro 0423 supports the following capabilities: function calling, prompt caching. Access all features through the Ofox.ai unified API.

DeepSeek V4 Pro 0423

Name: DeepSeek V4 Pro 0423
Brand: deepseek
Price: 1.32 USD
Availability: InStock

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deepseek/deepseek-v4-pro-0423

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DeepSeek V4 Pro 0423 is the 2026-04-23 dated snapshot of DeepSeek's large-scale Mixture-of-Experts flagship, with 1.6T total parameters and 49B activated parameters. It is aimed at demanding coding, analysis, and long-horizon agent workflows, with strong results across knowledge, math, and software engineering benchmarks. It supports tool use and prompt caching; it exposes no separate thinking mode. Context window: 1M tokens, output: 384K. It costs roughly three times the Flash line per token, so it is worth reserving for the steps that actually need the larger model. The 0813 snapshot is the newer point on the same line. Available via OpenAI and Anthropic protocols through Ofox.

Context Window

Max Output Tokens

384K

Released

2026-04-23

Capabilities

Function CallingPrompt Caching

Available Providers

Azure

Supported Protocols

openaianthropic

Providers

Azureprovider.type: "azure_foundry"

Input Tokens

$1.74/M

Output Tokens

$3.48/M

$3.96/M

Cache Read

$1.74/M

Web Search

$0.035/R

Protocols

openai/v1/chat/completions/v1/responses

anthropic

Playground

Open in OfoxChat

Code Examples

from openai import OpenAI

client = OpenAI(
    base_url="https://api.ofox.run/v1",
    api_key="YOUR_OFOX_API_KEY",
)

response = client.chat.completions.create(
    model="deepseek/deepseek-v4-pro-0423",
    messages=[
        {"role": "user", "content": "Hello!"}
    ],
)

print(response.choices[0].message.content)