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DeepSeek

DeepSeek V4 Pro: Online Chat & API

deepseek-v4-pro

DeepSeek's 1.6T-parameter MoE open-source flagship — frontier-adjacent reasoning and coding at a fraction of flagship prices, with 1M context.

Input 110,93 ₽ · Output 221,85 ₽ /1M tokens1M context Thinking Prompt caching
API key
deepseek-v4-pro
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Try it right here

Real model, streaming live — free trial credits on sign-up

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About DeepSeek V4 Pro

DeepSeek V4 Pro is the open-source flagship that reset price expectations: a 1.6T-parameter Mixture-of-Experts model whose reasoning and coding sit remarkably close to frontier models.

Automatic prompt caching (no parameters needed) plus a 1M-token context window make it exceptionally economical for agents, RAG and batch analysis at scale.

On Sozdai you can use DeepSeek V4 Pro two ways with one account and one credit balance: chat in the browser playground on this page, or call it programmatically through an OpenAI-compatible endpoint. Pricing is pure pay-as-you-go per token with no subscription.

Why DeepSeek V4 Pro

1.6T MoE architecture

Massive Mixture-of-Experts design delivering near-frontier quality from an open-source model.

Price-performance outlier

Flagship-adjacent output at an order of magnitude lower cost — rethink what workloads are affordable.

OpenAI-compatible API

Point your existing OpenAI SDK at our base URL and it just works — streaming, tool calling, usage accounting included.

Automatic prompt caching

Repeated prompt prefixes are cached upstream automatically and billed at a fraction of the input price — no parameters needed. Great for agents and RAG.

One balance for everything

Web chat and API share the same credit balance and transparent per-token pricing. No subscription, no minimums.

Specifications

Model IDdeepseek-v4-pro
FamilyDeepSeek
TypeLLM
Context window1M tokens
Input price110,93 ₽ / 1M tokens
Output price221,85 ₽ / 1M tokens
Cache read price1,02 ₽ / 1M tokens
Thinking / reasoningYes
Prompt cachingYes
API compatibilityOpenAI SDK + Anthropic /v1/messages
StreamingYes

Integrate in three steps

1

Create an API key

Sign up, open the console and issue a key — free trial credits are included, no card required.

2

Point your SDK at Sozdai

Set the base URL to our endpoint and pass model \"deepseek-v4-pro\". Existing OpenAI SDK code needs no other changes.

3

Ship and monitor

Stream responses in production and track every request's tokens and cost in the usage logs.

Frequently asked questions

Can I try DeepSeek V4 Pro without writing code?+

Yes — the playground on this page is the real model. Sign up, get trial credits and chat instantly; the same account later works for the API.

Is the API compatible with the OpenAI SDK?+

Yes. Use any OpenAI SDK (Python, Node, etc.) with our base URL — streaming and tool calling included.

How does pricing work?+

Pure pay-as-you-go per token, shown on this page and billed from your credit balance (1 credit = $0.01). Cache hits are billed at a heavily discounted rate. No subscription.

Does it support thinking / reasoning?+

Yes — reasoning is supported and can be enabled per request for harder problems.

What is the context window?+

1M tokens — full repositories and document sets in one conversation.