DeepSeek V4 Pro API
DeepSeek's most capable model. Near-flagship performance at ultra-low cost. Strong in reasoning, coding, and math.
💰 Save up to 70% vs official DeepSeek pricingDeepSeek V4 Pro — cheaper than the official DeepSeek API
Access DeepSeek V4 Pro through AI API Hub and pay less per token. Same OpenAI-compatible endpoint, lower cost.
Technical Specifications
| Provider | DeepSeek |
| Model Family | DeepSeek V4 Pro |
| Release Date | 2026-05 |
| Context Window | 128K |
| Max Output Tokens | 65,536 |
| Input Price | $0.55 / 1M tokens |
| Output Price | $2.19 / 1M tokens |
| Vision Support | No |
| Function Calling | Yes ✓ |
| JSON Mode | No |
| Streaming | Yes ✓ |
| Fine Tuning | Not Available |
| Status | Active ✓ |
Overview
DeepSeek V4 Pro is DeepSeek's current deepseek model, released in 2026-05. DeepSeek's most capable model. Near-flagship performance at ultra-low cost. Strong in reasoning, coding, and math.
For developers, the headline numbers are a 128K context window and up to 65,536 output tokens per response — enough headroom for latest v4 flagship and best deepseek quality without chunking your input. Priced at $0.55/1M input and $2.19/1M output, it sits in the budget tier — ideal for high-volume pipelines where token cost dominates.
On the capability side, DeepSeek V4 Pro exposes 5 features: Reasoning, Code Generation, Math, Streaming, Tool Use. Note that fine-tuning isn't supported — you'll work with the base model. It's text-only, so route image or audio workloads elsewhere.
The practical appeal of routing DeepSeek V4 Pro through AI API Hub is simplicity: one OpenAI-compatible endpoint, USDT & USDC payments, no credit card, and you're calling the API in under 30 seconds — just swap your base URL.
What Makes DeepSeek V4 Pro Different
How DeepSeek V4 Pro is used
DeepSeek V4 Pro is deployed where problems need step-by-step reasoning before code output — complex bug fixes, algorithmic implementation, math-heavy analysis, and multi-step refactoring. The internal chain-of-thought adds latency (expect slower responses), so don't route high-volume simple queries here. Use it for the hard 10% of tasks where cheaper models fail.
Pricing position within DeepSeek
DeepSeek V4 Pro sits in the middle of DeepSeek's pricing at $0.55/1M input — 36% above the lineup average ($0.23 cheapest, $0.70 most expensive). 3 siblings cost less, 1 cost more. This mid-tier positioning makes it a sensible default when you're unsure which variant to pick.
DeepSeek V4 Pro's role in the lineup
Within DeepSeek's lineup, DeepSeek V4 Pro is a mid-tier option — balanced between cost and capability. The deepseek family has 5 active variants, and DeepSeek V4 Pro occupies the upper end. This makes it a safe default for production workloads where you're not sure which tier to pick.
Real-world use cases
Real-world deployments: autonomous coding agents that fix complex bugs across multi-file codebases, algorithmic problem solving, math-heavy data analysis pipelines, and automated code review for architecture-level decisions. Teams route the simple 90% of coding tasks to cheaper models and reserve DeepSeek V4 Pro for the hard 10%.
vs sibling models
What makes DeepSeek V4 Pro different from sibling models: compared to DeepSeek V4 Flash ($0.28/1M cheaper, same 128K context); DeepSeek Chat ($0.28/1M cheaper, same 128K context); DeepSeek V3.2 ($0.32/1M cheaper, same 128K context). Choose DeepSeek V4 Pro when step-by-step reasoning matters more than speed.
API Examples
Python
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://api.apiyihe.org/v1"
)
response = client.chat.completions.create(
model="deepseek-v4-pro",
messages=[
{"role": "user", "content": "Hello"}
]
)
print(response.choices[0].message.content)JavaScript / Node.js
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.API_KEY,
baseURL: "https://api.apiyihe.org/v1"
});
const response = await client.chat.completions.create({
model: "deepseek-v4-pro",
messages: [
{ role: "user", content: "Hello" }
]
});
console.log(response.choices[0].message.content);cURL
curl https://api.apiyihe.org/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "deepseek-v4-pro",
"messages": [
{"role": "user", "content": "Hello"}
]
}'Supported Features
| Vision / Image Input | ❌ Not Available |
| Audio / Voice Input | ❌ Not Available |
| Function Calling | ✅ Supported |
| JSON Mode | ❌ Not Available |
| Streaming | ✅ Supported |
| Fine-Tuning | ❌ Not Available |
| Multimodal | ❌ Not Available |
Benchmark Scores
| Benchmark | Score |
|---|---|
| MMLU | Not Publicly Available |
| GPQA | Not Publicly Available |
| SWE-Bench | Not Publicly Available |
| HumanEval | Not Publicly Available |
| GSM8K | Not Publicly Available |
| MATH | Not Publicly Available |
| MMMU | Not Publicly Available |
Pricing History
DeepSeek V4 Pro was released in 2026-05 by DeepSeek and is currently publicly available via AI API Hub.
Current Pricing: $0.55 per 1M input tokens · $2.19 per 1M output tokens. Pay-as-you-go with no minimum commitment.
Pricing Model: Token-based billing (pay per use). No subscription fees. No hidden costs.
💡 DeepSeek occasionally updates pricing. AI API Hub reflects current pricing in real-time. All prices in USD. Pay with USDT or USDC — no currency conversion fees.
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Frequently Asked Questions
What is DeepSeek V4 Pro?
DeepSeek V4 Pro is DeepSeek's current deepseek model. DeepSeek's most capable model. Near-flagship performance at ultra-low cost. Strong in reasoning, coding, and math. It offers a 128K context window and supports Reasoning, Code Generation, Math. You can access it through AI API Hub using USDT or USDC — no credit card required.
How much does DeepSeek V4 Pro cost?
DeepSeek V4 Pro is priced at $0.55 per 1M input tokens and $2.19 per 1M output tokens, billed pay-as-you-go with no minimum. Through AI API Hub you can start with as little as $5 and scale from there.
DeepSeek V4 Pro vs GPT-5.5?
They're built for different jobs. DeepSeek V4 Pro costs $0.55/1M input with a 128K window; GPT-5.5 runs $5.00/1M input with 256K. DeepSeek V4 Pro is the more cost-effective pick and still brings latest v4 flagship. See the full side-by-side at /compare/deepseek-v4-pro-vs-gpt-5.5/.
DeepSeek V4 Pro context window?
DeepSeek V4 Pro has a 128K context window, capable of processing up to 128,000 tokens in a single request. Maximum output tokens: 65,536.
Does DeepSeek V4 Pro support function calling?
Yes, DeepSeek V4 Pro supports function/tool calling, allowing you to define functions that the model can invoke. This enables AI agents, API integrations, and structured data extraction.
Is DeepSeek V4 Pro multimodal?
No, DeepSeek V4 Pro is a text-only model. For multimodal use cases, consider models with vision/audio capabilities.
DeepSeek V4 Pro API rate limits?
DeepSeek V4 Pro rate limits: 5K RPM. Higher tier plans offer increased throughput. For high-volume production use, consider DeepSeek's faster variant models.
How to access DeepSeek V4 Pro API?
Access DeepSeek V4 Pro through AI API Hub: (1) Register at api.apiyihe.org/register?aff=8JZC, (2) Deposit USDT/USDC, (3) Get your API key instantly, (4) Use the OpenAI-compatible endpoint https://api.apiyihe.org/v1 with model name "deepseek-v4-pro". Start building in under 30 seconds.