DEEPSEEK

DeepSeek V4 Pro

Reasoning, olympiad math and code

What it's the best tool for

Built-in reasoning for deep logical analysis and proofs
Olympiad-level math — solves Putnam and IMO-level problems
One million token context for analyzing entire projects and research
Premium-class logic, comparable to GPT-5.4 and Claude Opus
Native Russian reasoning with proper Cyrillic support

Limitations

When to reach for something else

Paid API — each request incurs charges (premium for reasoning)
Slower than Flash — reasoning requires computation time
No image or video generation
Tokens consumed on intermediate reasoning steps

Sample output

How DeepSeek V4 Pro responds

Prompt

Prove that the sum of three consecutive cubes is divisible by 9, or provide a counterexample if false.

DeepSeek V4 Pro

Lemma: I'll prove by induction. Let S = n³ + (n+1)³ + (n+2)³. Expanding: n³ + (n³ + 3n² + 3n + 1) + (n³ + 6n² + 12n + 8) = 3n³ + 9n² + 15n + 9 = 3(n³ + 3n² + 5n + 3) Factor of 3 is clear. For divisibility by 9, I need n³ + 3n² + 5n + 3 ≡ 0 (mod 3). n³ + 3n² + 5n + 3 ≡ n³ + 2n (mod 3) Checking n ≡ 0,1,2 (mod 3) — all cases yield 0. Proof complete.

Where teams use it

Four scenarios where it pays for itself

Science

Paper review, hypothesis generation from data, process long-form research

Math

Olympiad problems, theorem proofs, abstract computations

Analytics

Deep analysis of large datasets, pattern discovery and trending

Architecture

Complex system design, strategic planning, risk analysis

About model

More about DeepSeek V4 Pro

DeepSeek V4 Pro: Advanced AI with Deep Reasoning

DeepSeek V4 Pro is the flagship version of DeepSeek's next-generation architecture, equipped with an advanced reasoning module for multi-step logical analysis. With support for one-million-token context, the model effortlessly handles complex analytical tasks, scientific research, and mathematical proofs.

What Makes V4 Pro Special?

Unlike Flash, Pro activates 49 billion parameters from 1.6 trillion and includes a built-in deep reasoning mechanism. This means the model is slower but smarter — it passes tests like IMOAnswerBench at GPT-5.4 level, wins math olympiad problems.

Use For:

Analysts, scientists, developers who need maximum accuracy on complex problems. On NetRoom, run V4 Pro in your browser — pay only for consumed tokens, no subscription required.