DeepSeek V4 Pro 0813 API
DeepSeek
DeepSeek V4 Pro 0813 is a large-scale mixture-of-experts model from DeepSeek. This is the GA release of DeepSeek V4 Pro.
About DeepSeek V4 Pro 0813
DeepSeek V4 Pro 0813 is a large language model developed by DeepSeek. It's particularly well-suited for tackling complex, multi-step reasoning problems, orchestrating tool-using agents that call APIs and external services, grounding responses in real-time web search results, producing structured outputs for reliable data extraction, and handling large contexts of up to 1.0M tokens. Its 1.0M-token context window means you can pass in entire documents, codebases, or conversation histories without losing context. Developers choose DeepSeek V4 Pro 0813 when they need reliable, production-quality AI inference through a simple API — and on Qubax, it's available at a fraction of the cost of traditional providers.
In the broader AI landscape, DeepSeek V4 Pro 0813 sits among the frontier-tier offerings from DeepSeek With advanced reasoning and agentic tool use, it competes with the most frontier-tier models on the market. What sets it apart on Qubax isn't just the model itself — it's the accessibility. Rather than dealing with enterprise contracts or traditional payment rails, you get instant access via an OpenAI-compatible endpoint. That means you can drop DeepSeek V4 Pro 0813 into Cursor, Cline, LangChain, or any framework that speaks the OpenAI protocol and start building immediately.
Qubax offers DeepSeek V4 Pro 0813 at competitive rates — just $1.30 per million input tokens and $2.61 per million output tokens. That pricing advantage compounds quickly at scale: a high-volume application sending millions of tokens per day can save significantly compared to using OpenRouter or the provider directly. And because Qubax runs on crypto-native infrastructure, you can pay with USDC, USDT, ETH, BTC, or 200+ other cryptocurrencies — no credit card or bank account required.
Pricing
| Token Type | Qubax | OpenRouter | You Save |
|---|---|---|---|
| Input (per 1M tokens) | $1.30 | $0.435 | — |
| Output (per 1M tokens) | $2.61 | $0.870 | -200% |
Prices per 1 million tokens. Pay with 200+ cryptocurrencies.
Estimated Monthly Cost
Specifications
Use Cases
Capabilities
Quick Start
from openai import OpenAI
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="qbx_live_YOUR_API_KEY",
)
response = client.chat.completions.create(
model="deepseek-v4-pro-0813",
messages=[
{"role": "user", "content": "Hello!"}
],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.qubax.ai/v1",
apiKey: "qbx_live_YOUR_API_KEY",
});
const response = await client.chat.completions.create({
model: "deepseek-v4-pro-0813",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);curl https://api.qubax.ai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer qbx_live_YOUR_API_KEY" \
-d '{
"model": "deepseek-v4-pro-0813",
"messages": [{"role": "user", "content": "Hello!"}]
}'Get your API key from the dashboard.
Why use DeepSeek V4 Pro 0813 on Qubax?
Best Prices
Up to 99% off OpenRouter prices
Pay with Crypto
200+ coins (BTC, ETH, SOL, USDT, USDC & more). No credit card needed.
OpenAI Compatible
Drop-in replacement. Works with Cline, Cursor, any tool.
More from DeepSeek
Compare DeepSeek V4 Pro 0813 with alternatives
| Model | Provider | Input / 1M | Output / 1M | vs DeepSeek V4 Pro 0813 |
|---|---|---|---|---|
| DeepSeek V4 Pro 0813 | DeepSeek | $1.30 | $2.61 | — |
| Claude Opus 5 | Anthropic | $1.50 | $7.50 | More expensive |
| Hermes 3 Llama 3.1 405b (Morpheus Web) | Meta | $0.660 | $1.80 | Cheaper |
| Kimi K3 | Moonshot AI | $0.899 | $4.50 | Cheaper |
| GPT-5.4 Image 2 | OpenAI | $2.38 | $4.46 | More expensive |
Frequently Asked Questions
How much does the DeepSeek V4 Pro 0813 API cost?
On Qubax, DeepSeek V4 Pro 0813 costs $1.30 per 1M input tokens and $2.61 per 1M output tokens.
Is the DeepSeek V4 Pro 0813 API compatible with OpenAI?
Yes. Qubax provides an OpenAI-compatible API. You can use DeepSeek V4 Pro 0813 as a drop-in replacement by changing your base URL to https://api.qubax.ai/v1 and using your Qubax API key. It works with Cline, Cursor, OpenCode, Hermes Agent, and any tool that supports OpenAI APIs.
How do I pay for DeepSeek V4 Pro 0813 API usage?
Qubax uses prepaid crypto credits. Deposit USDC on the Base chain and your balance is automatically deducted as you use the API. No credit card required. Top up from $3.
What is the context window of DeepSeek V4 Pro 0813?
DeepSeek V4 Pro 0813 supports a context window of 1.0M tokens, allowing you to process large documents, codebases, or long conversations in a single request.
What can I build with DeepSeek V4 Pro 0813?
DeepSeek V4 Pro 0813 is versatile enough for a wide range of applications. You can use it to tackle complex multi-step reasoning tasks, build autonomous agents that call external tools and APIs, answer questions with real-time web search, generate structured JSON output for data pipelines, process long documents and entire codebases, and more. Because it's served through Qubax's OpenAI-compatible API, integration into existing apps, agents, or workflows takes just a few lines of code.
How fast is DeepSeek V4 Pro 0813 on Qubax?
DeepSeek V4 Pro 0813 on Qubax supports streaming responses, so tokens begin arriving in real time as they're generated. Latency depends on the provider and prompt complexity, but most requests start streaming within 200–800 milliseconds. Qubax routes requests through the Surplus Intelligence marketplace, which selects the fastest available compute provider for each request — so you get competitive latency at a lower price.
DeepSeek V4 Pro 0813 vs Claude Opus 5: which should I choose?
DeepSeek V4 Pro 0813 by DeepSeek and Claude Opus 5 by Anthropic are both strong models in a similar price tier. DeepSeek V4 Pro 0813 excels at complex reasoning. Claude Opus 5 comes from a different lab and may have different strengths depending on your workload. On Qubax, DeepSeek V4 Pro 0813 starts at $1.30/1M input tokens versus Claude Opus 5's $1.50/1M — making DeepSeek V4 Pro 0813 the more cost-effective option for high-volume workloads. Both are available on Qubax with crypto payments and OpenAI-compatible APIs, so you can try each and switch freely.
Can I use DeepSeek V4 Pro 0813 for commercial projects?
Yes. DeepSeek V4 Pro 0813 on Qubax can be used for commercial purposes. You own the outputs you generate. Qubax provides the API infrastructure — you bring your use case.
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