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DeepSeek V4: The Open, Free Model That Beats the Best

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DeepSeek V4

🏆 DeepSeek V4: The Greatest AI Model Yet

DeepSeek has releasedDeepSeek V4 — a model that could reshape the AI industry.

"The greatest AI model yet" — that's not hype, it's an overall verdict based on reasoning, open-source freedom, and value for money.

🧠 Core Features

Feature Details
Strongest reasoning Reasoning beats top models like Claude and GPT
Open source and free MIT license — fully open, free, and free for commercial use
Ultra-long context Supports million-token contexts
Unbeatable value Priced far below comparable international models

📊 Beating the Top Contenders

DeepSeek V4 outperforms the world's leading models on multiple benchmarks:

Model Reasoning Open source Price
DeepSeek V4 🏆 #1 ✅ Fully open source Dirt cheap
Claude Opus 4.7 Top-tier ❌ Closed source $5/1M input
GPT-5.4-Pro Top-tier ❌ Closed source $10/1M input
Qwen 3.6-Max China's best ⚠️ Partial $2/1M input
GLM-5.1 China's best ✅ Open source Free

DeepSeek V4's edge: strongest reasoning + fully open source and free + unbeatable value.

🔧 The DeepSeek Tech Stack

DeepSeek has open-sourced its entire tech stack:

Project What it does GitHub Stars
FlashMLA Efficient multi-head latent attention kernels 🔥 High
DeepGEMM FP8 GEMM kernels with fine-grained scaling 🔥 High
DeepEP Efficient expert-parallel communication library 🔥 High
DualPipe Bidirectional pipeline parallelism algorithm 2.9K+
Engram Scalable retrieval-based memory 4.3K+
3FS High-performance distributed file system 🔥 High
TileKernels TileLang kernel library 1K+

DeepSeek didn't just open-source the models — it released training frameworks, inference frameworks, and file systems, the complete stack.

💡 Why "the greatest"?

1. Strongest reasoning

DeepSeek V4 excels at complex reasoning tasks:

  • Math reasoning: solving complex math problems
  • Logical reasoning: multi-step logical analysis
  • Causal reasoning: inferring cause and effect
  • Coding reasoning: generating and understanding complex code

2. Fully open source and free

DeepSeek V4 ships under the MIT license:

  • Fully open source: model weights, training code, and inference code are all public
  • Free for commercial use: the MIT license allows any commercial use
  • No strings attached: no usage limits, no geographic restrictions

That stands in stark contrast to the closed-source approach of Claude and GPT.

3. Unbeatable value

DeepSeek V4's pricing is extremely competitive:

  • API pricing: far below comparable international models
  • Self-hosting costs: free and open source, so running it yourself is very cheap
  • Open-source model: deploy locally with zero API costs

4. The full tech stack, open sourced

DeepSeek has open-sourced the full stack of AI training and inference technology:

  • FlashMLA: efficient attention mechanisms
  • DeepGEMM: efficient matrix multiplication
  • DualPipe: efficient pipeline parallelism
  • 3FS: distributed file system
  • Engram: sparse memory mechanism

This lets other researchers reproduce and build on DeepSeek's technology.

🚀 How to Use It

API access

# DeepSeek API
curl -X POST https://api.deepseek.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Local deployment

# 克隆 DeepSeek
git clone https://github.com/deepseek-ai/DeepSeek-V4.git

# 使用 vLLM 推理
python -m vllm.entrypoints.api_server \
  --model deepseek-v4 \
  --tensor-parallel-size 8

OpenClaw support

DeepSeek V4 is integrated intoOpenClaw:

# OpenClaw 配置
openclaw config set model deepseek-portal/deepseek-v4

📊 DeepSeek Family Comparison

Version Highlights Status
DeepSeek V4 Strongest reasoning, fully open source 🆕 Latest
DeepSeek V3 Efficient reasoning, open source Stable
DeepSeek R1 Reasoning-optimized, open source Stable
DeepSeek Coder Coding-focused, open source Stable

📝 Summary

DeepSeek V4 has been called"the greatest AI model yet":

  • Strongest reasoning: beats Claude and GPT
  • Fully open source and free: MIT license, unrestricted commercial use
  • Unbeatable value: priced far below international models
  • Full tech stack open sourced: FlashMLA, DeepGEMM, DualPipe, 3FS, and more
  • Beats the top contenders: a Chinese model takes the crown

Open source, free, and the strongest — that's DeepSeek V4.

GitHub:https://github.com/deepseek-ai

Website:https://deepseek.com

API:https://api.deepseek.com