DeepSeek V4

DeepSeek's next-gen model featuring unified hybrid reasoning and a 512K context window, setting new open-weights benchmarks for AGI-level intelligence.

DeepSeekOpen SourceLanguage ModelLarge Language ModelAI AssistantHybrid ModelAgentLatest
Developer
DeepSeek
Type
Hybrid Language Model
License
Open Source
🌐 Official Website💰 Pricing & API

Overview

DeepSeek V4, released on March 28, 2026, is a next-generation frontier model that unifies chat and deep reasoning into a single, high-performance architecture. Featuring a massive 1 trillion parameter Mixture-of-Experts (MoE) design, it achieves AGI-level performance on reasoning, mathematics, and complex software engineering benchmarks. DeepSeek V4 represents the absolute state-of-the-art for open-weights AI, optimized for both efficient general-purpose interaction and autonomous agentic workflows.

Capabilities

DeepSeek V4's unified architecture provides extreme versatility across all AI domains:

  • Unified Hybrid Reasoning: Dynamically switches between instant conversational output and deep-thinking logic without needing separate API endpoints.
  • Superior Agentic Logic: Massive improvements in tool-use precision and multi-step orchestration, designed for long-running autonomous tasks.
  • AGI-Level Coding: Leading performance on SWE-Bench and professional-grade engineering challenges, capable of handling complex repository-wide refactoring.
  • Massive Multilingual Context: Optimized for 100+ languages with a 1 million token context window for processing large-scale technical documentation.
  • Open Frontier AI: Fully accessible weights that enable local deployment of world-class intelligence.

Technical Specifications

DeepSeek V4 incorporates breakthroughs in efficient MoE scaling:

  • Model size: 1 trillion total parameters, with 37 billion active per token.
  • Context window: 1,000,000 tokens for comprehensive long-form reasoning.
  • Architecture: Fine-grained Mixture-of-Experts (MoE) Transformer optimized for native execution on diverse hardware (including Ascend and NVIDIA).
  • Inference Optimization: Groundbreaking efficiency allowing T8-level performance on consumer-grade high-end hardware.

Use Cases

DeepSeek V4 is the primary open-source engine for high-intelligence applications:

  • Autonomous AI Agents: Executing complex, multi-stage business and development tasks with high reliability.
  • Technical Research: Analyzing and synthesizing information across thousands of research papers and technical specifications.
  • Advanced Enterprise Search: Powering grounding-heavy RAG systems with extreme precision and reasoning depth.
  • Multilingual Enterprise Support: Providing high-level intelligence across global markets and languages.

Limitations

  • Mode Selection: The developer needs to consciously choose the correct mode (chat vs. reasoner) for the task at hand to achieve optimal performance and cost-efficiency.
  • Knowledge Cutoff: The model's knowledge is based on its training data and does not include real-time information.

Pricing & Access

DeepSeek V4 continues the tradition of industry-leading cost-efficiency:

  • API Access: Available via DeepSeek API with high-throughput and low-latency endpoints.
  • Open Weights: Weights are freely available on Hugging Face for private deployment and fine-tuning.
  • DeepSeek Platform: Direct access through the official web and mobile applications with full support for unified reasoning.

Ecosystem & Tools

  • DeepSeek Chat: The official web interface for interacting with V4.
  • Hugging Face: Hub for the open-source model weights.
  • DeepSeek API: The official API for programmatic access.
  • Anthropic API Compatibility: Native support for the Anthropic API standard for seamless migration.

Community & Resources

Frequently Asked Questions

DeepSeek V4 was released by DeepSeek on March 28, 2026, marking a new frontier in open-weights AGI development.
Building on the earlier R1 and V3 series, unified hybrid reasoning allows the model to dynamically allocate thinking tokens within a single unified stream, seamlessly blending standard chat with deep multi-step logic.
Yes, the weights for DeepSeek V4 are available on Hugging Face, continuing DeepSeek's commitment to open AI research.

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