How do I use DeepSeek V4 Pro 0813 through YepAPI?

Sign up for a free API key, then send requests to the /v1/ai/chat endpoint.

DeepSeekText Generation/v1/ai/chatReasoning

DeepSeek V4 Pro 0813

Access DeepSeek V4 Pro 0813 through one API key. DeepSeek V4 Pro GA Release.

DeepSeek V4 Pro 0813 is the GA release of DeepSeek V4 Pro, a large-scale mixture-of-experts model. V4 Pro 0813 is the pick for long-document reasoning and coding where you want DeepSeek's flagship quality on a stable, generally available snapshot.

Full Docs Get API Key — Free $5 Credit

No credit card required. Takes 30 seconds.

2,400+

Developers

1.2M+

API calls served

100+

Endpoints

$0.01

Per call

Yep, that's it.

Try it live

Send a message and see DeepSeek V4 Pro 0813 respond in real time.

POST/v1/ai/chatdeepseek/deepseek-v4-pro-0813

Message *

Max Tokens

Maximum tokens in the response.

Stream

Real-time tokens

Hit "Send Request" to see the response

Context Window

1.0M tokens

Max Output

944K tokens

Input Price

$0.37 / 1M tokens

Output Price

$5.17 / 1M tokens

Strengths

✓

GA snapshot of V4 Pro

The generally available release of DeepSeek's flagship V4 Pro.

✓

Cheap input, long context

$0.37 per 1M input tokens over a 1,048,576-token window makes large-context work affordable.

✓

Very large output

Returns up to 943,718 output tokens per call.

✓

Tools and structured output

Function calling and JSON schema outputs.

Quick start

Copy this snippet and start making calls with DeepSeek V4 Pro 0813.

const res = await fetch('https://api.yepapi.com/v1/ai/chat', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "model": "deepseek/deepseek-v4-pro-0813",
    "messages": [
      {
        "role": "user",
        "content": "Explain API gateways in 2 sentences."
      }
    ],
    "maxTokens": 256
  }),
});
const { data } = await res.json();
console.log(data.message.content);

Why use DeepSeek V4 Pro 0813 through YepAPI?

✓One API key for all models — no separate accounts

✓OpenAI SDK compatible — just change the base URL

✓No monthly minimums — pay per token

✓Switch models with one line of code

✓Full provider passthrough — citations, search results, and all extras included

✓Streaming and non-streaming support on every model

✓Works with Cursor, Claude, LangChain, and any LLM tool

✓Unified billing across all providers

DeepSeek V4 Pro 0813 API — pricing, context window & access

DeepSeek V4 Pro 0813 is the GA release of DeepSeek V4 Pro, a large-scale mixture-of-experts model. It pairs a 1,048,576-token context window with up to 943,718 output tokens per response, at $0.37 per 1M input and $5.17 per 1M output tokens through YepAPI.

Through YepAPI you call DeepSeek V4 Pro 0813 on an OpenAI-compatible endpoint with a single key — the same key that reaches GPT-6, Claude, Gemini, Grok and the SEO, SERP and scraping APIs. Input: text.

What is DeepSeek V4 Pro 0813?

DeepSeek V4 Pro 0813 is the GA release of DeepSeek V4 Pro, a large-scale mixture-of-experts model. It offers a 1,048,576-token context window and up to 943,718 output tokens at $0.37 / $5.17 per 1M tokens, with the low input rate making it well suited to long-context reasoning. It accepts text as input, handles up to 1,048,576 tokens of context and returns up to 943,718 output tokens per call.

Build with DeepSeek V4 Pro 0813 via YepAPI

YepAPI serves DeepSeek V4 Pro 0813 on the OpenAI-compatible /v1/ai/chat endpoint. Point your base URL at YepAPI, add your key, and set the model string to deepseek-v4-pro-0813 (or the full deepseek/deepseek-v4-pro-0813). Function calling, structured outputs and reasoning settings pass straight through, and switching to any other model on the platform is a one-string change per request.

DeepSeek V4 Pro 0813 API pricing — $0.37 / 1M input, $5.17 / 1M output

DeepSeek V4 Pro 0813 costs $0.37 per 1M input tokens and $5.17 per 1M output tokens through YepAPI, pay per token with no minimums. Failed calls are never charged, and every request is itemised in your dashboard API Logs so you can see exactly what a very long response cost.

DeepSeek V4 Pro 0813 use cases

V4 Pro 0813 is the pick for long-document reasoning and coding where you want DeepSeek's flagship quality on a stable, generally available snapshot.

Try DeepSeek V4 Pro 0813 free

Every new YepAPI account includes $5 in free credit with no card required — enough to test DeepSeek V4 Pro 0813 on your own prompts before committing to paid usage. Create an account, copy your key, and call deepseek-v4-pro-0813 right away.