DeepSeek v4 Pro
DeepSeek V4 Pro is a professional-grade multimodal model for highly accurate image, video, and text generation and analysis.
Use cases
deepseek-v4-pro prototyping · deepseek-v4-pro production workflows
Input
Text, image
Output
Text
Billing
Per token
Start a conversation
Type a message below to begin
Sign up to get $0.5 in free credits — about 20 free images
Pricing details
Transparent usage-based pricing with no hidden fees.
Detailed Pricing
Usage-based pricing breakdown
| Spec | Price |
|---|---|
| Input/1M tokens | 0.435 Credits≈$0.435 |
| Output/1M tokens | 0.87 Credits≈$0.87 |
| Cache Read/1M tokens | 0.0036 Credits≈$0.0036 |
Billing Rules
- Output price varies by model, resolution, quality, duration, or token usage.
- Uploaded reference files may be charged separately when supported.
- Add-on capabilities such as web search or image search may be billed per request.
- Token-based models are billed by input and output tokens.
- If the primary route is unavailable, Velokey may automatically switch to a stable fallback route when possible.
- Usage is pay-as-you-go with transparent credit deduction.
* Final cost depends on the generated result.
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Affordable DeepSeek-V4-Pro API
Access DeepSeek-V4-Pro on Velokey — open-source SOTA agentic coding, rich world knowledge, world-class reasoning, and a 1M-token context powered by DeepSeek Sparse Attention, through a unified endpoint with below-list pricing for production apps.
Meet DeepSeek-V4-Pro and its API access
DeepSeek-V4-Pro is DeepSeek's flagship model released on April 24, 2026, built on a 1.6T-parameter Mixture-of-Experts architecture that activates only 49B parameters per token. It reaches open-source state of the art in agentic coding, leads all open models in world knowledge (trailing only Gemini-3.1-Pro), and beats every open model on math, STEM, and coding reasoning. It ships with a 1M-token context window and up to 384K tokens of output, and supports both Thinking and Non-Thinking modes, with thinking enabled by default. Velokey provides an affordable, easy-to-integrate DeepSeek-V4-Pro API: a unified endpoint, a clear request flow, and below-list pricing for production systems, agent pipelines, and automation tools. The API is compatible with both OpenAI ChatCompletions and Anthropic APIs and integrates with Claude Code, OpenClaw, and OpenCode.
Open-source SOTA agentic coding
DeepSeek-V4-Pro reaches open-source state of the art on agentic coding benchmarks, planning and executing multi-step engineering tasks autonomously — fit for end-to-end coding agents that build, debug, and refactor on their own.
View Documentation →
Rich world knowledge
It carries the richest world knowledge of any open model, leading all open competitors and trailing only Gemini-3.1-Pro — a strong foundation for research, knowledge work, and grounded question answering.
View Documentation →
World-class reasoning across math, STEM, and coding
With both Thinking and Non-Thinking modes (thinking on by default), DeepSeek-V4-Pro beats every open model on math, STEM, and coding reasoning, working through elaborate multi-step problems with consistency.
View Documentation →
1M-token context with DSA efficiency
A 1M-token context window and up to 384K output, powered by token-wise compression and DeepSeek Sparse Attention (DSA) for world-leading long context at drastically reduced compute and memory cost.
View Documentation →
How to deploy the DeepSeek-V4-Pro API on Velokey
Get started with just a few steps.
Sign up and get an API Key
Sign in to the Velokey console to generate an API Key that authenticates every request sent to DeepSeek-V4-Pro.
Configure request parameters
Set model to deepseek-v4-pro and submit your messages. Thinking mode is the default; switch to Non-Thinking mode for faster, lighter responses. The API is compatible with both OpenAI ChatCompletions and Anthropic APIs.
Integrate and start calling
Send requests to Velokey's unified endpoint to power assistants, coding agents, and automation, and connect tools like Claude Code, OpenClaw, and OpenCode, with usage managed in one console.
Real-world use cases for DeepSeek-V4-Pro
From engineering to research, covering many high-autonomy scenarios.
Autonomous coding agents
With open-source SOTA agentic coding, fit for agents that plan, build, debug, and refactor across an entire codebase on their own.
Whole-repository long-context work
A 1M-token context with DSA efficiency fits reasoning across entire repositories, long documents, and dozens of files at once.
Research and knowledge work
Rich world knowledge leading all open models — fit for literature review, technical research, and grounded question answering.
Math, STEM, and scientific reasoning
World-class reasoning that beats all open models on math and STEM — fit for proofs, derivations, and multi-step analysis.
Complex agents and long-horizon planning
Thinking mode and strong reasoning make it fit for complex agentic workflows and long-horizon planning that stay coherent.
Cost-efficient long-context pipelines
Token-wise compression and DSA cut compute and memory cost, fit for high-volume long-context pipelines that must stay affordable.
Why choose Velokey for DeepSeek-V4-Pro
Discount on list price
Official pricing is $0.435 cache-miss input, $0.0036 cache-hit input, and $0.87 output per million tokens — call DeepSeek-V4-Pro below list on Velokey, pay-as-you-go with no forced subscription.
Unified API interface
One API Key accesses DeepSeek-V4-Pro and other models through an endpoint compatible with both OpenAI ChatCompletions and Anthropic APIs — no juggling multiple accounts and keys.
Complete docs and tool integration
Endpoint references, parameter details, and ready integrations for Claude Code, OpenClaw, and OpenCode help you wire DeepSeek-V4-Pro into agents and tools smoothly.
Stable and highly available
Automatic failover and stable fallback routes maintain availability when the primary route is down, keeping production reliable.
API Reference
Complete API call examples and parameter descriptions
Endpoint
https://api.velokey.ai/v1/chat/completionsAuthentication
Bearer YOUR_API_KEYRequest Example
curl https://api.velokey.ai/v1/chat/completions \
-X POST \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "deepseek-v4-pro",
"messages": [{"role": "user", "content": "Hello!"}],
"temperature": 0.7
}'Response Example
{
"id": "req_abc123",
"model": "deepseek-v4-pro",
"created": 1234567890,
"data": { ... }
}deepseek-v4-pro API FAQ
What is the deepseek-v4-pro API?
deepseek-v4-pro is available through Velokey as a chat model. Set model to deepseek-v4-pro and use the family-specific endpoint.
Which parameters does deepseek-v4-pro use?
The playground shows the main fields for deepseek-v4-pro, including the model id and the most important generation parameters.
How is deepseek-v4-pro billed?
Pricing is shown on this page when available, and credits are managed from one Velokey account.
Who should use deepseek-v4-pro?
It fits teams that want to test, compare, and ship AI capabilities through a unified API.
Start building with DeepSeek v4 Pro today
Use one API key to access low-cost, stable AI models through Velokey.