DeepSeek V4 Pro (DeepSeek)

DeepSeek V4 Pro

DeepSeek🇨🇳 CN

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DeepSeek's heavyweight: 1.6T total, 49B active, 1M context, FP4/FP8 mixed precision. Codeforces 3206 Elo beats GPT-5.4. MIT license, fully open weights. $0.435/$0.87 per MTok on OpenRouter.

At a glance

Context

1M tokens

Parameters

1.6T MoE (49B active)

Input

text, code

Official benchmarks

Benchmark	Score	Source
LiveCodeBench	93.5%	Source ↗
Codeforces Rating	3206 Elo	Source ↗
MMLU	90.1%	Source ↗

Only official figures with a source.

Specifications

Status: Released
Date: June 1, 2026
Lab: DeepSeek
Origin: CN
Type: reasoning, text
Open weights: Yes
License: MIT
Context: 1M tokens
Parameters: 1.6T MoE (49B active)
Input: text, code
Output: text, code

Availability

Direct API access✓ Yes

OpenRouter✓ Yes ↗

Open weights✓ Yes

Blog / Announcement ↗HuggingFace ↗OpenRouter ↗