DeepSeek-V4预览版值得体验吗？百万上下文开源模型能否比肩闭源？
AI Summary (BLUF)
[Original Summary] DeepSeek officially released the preview version of DeepSeek-V4, supporting 1M token context, open-sourcing the model, and offering two versions (Pro & Flash) with enhanced Agent capabilities, marking a milestone for open-source models to rival top closed-source models.
原文翻译： DeepSeek正式发布DeepSeek-V4预览版，支持百万token上下文，开源模型，提供Pro与Flash两个版本，并增强Agent能力，标志着开源模型首次比肩顶级闭源模型。
DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities. Officially Released: Million-token Context, Domestic Open-Source Model Matches Top Closed-Source for the First Time!
不诱于誉，不恐于诽，率道而行，端然正己。
"Not lured by praise, not intimidated by slander, follow the path with integrity, and stand upright." — DeepSeek team
—— DeepSeek 团队在文末这样写道。就在今天，DeepSeek 正式推出全新一代大模型——DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities. 预览版，并同步开源！这意味着，我们即将迈入百万字上下文普惠时代。
— This is how the DeepSeek team closed their announcement. Today, DeepSeek officially launched the next-generation large model — DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities. Preview — and open-sourced it simultaneously! This marks the dawn of an era where million-token context becomes universally accessible.
核心亮点 (Key Highlights)
以下表格总结了 DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities. 的核心特性，并对两个版本进行对比。
| 特性 | V4-ProDeepSeek-V4的高性能版本，在Agent能力、世界知识和推理性能上表现卓越，比肩顶级闭源模型。 | V4-FlashDeepSeek-V4的轻量经济版本，提供快速响应的API服务，适合成本敏感型应用。 | 关键指标 / Key Metrics |
|---|---|---|---|
| 上下文长度 | 100 万 token | 100 万 token | 100 万 token（约数十万字） |
| 性能定位 | 比肩顶级闭源模型 | 轻量经济型 | Agent、世界知识、推理接近 Opus 4.6 |
| 计算成本 | 标准 | 更低（快速响应 API） | 采用创新注意力机制神经网络中的一种技术，使模型能够根据输入的不同部分分配不同的重要性权重，从而更好地处理序列数据。降低计算成本 |
| Agent 优化 | 深度优化 Claude Code、OpenClaw | 同上 | 代码交付质量接近 Opus 4.6 水平 |
| 开源 | 已在 HuggingFace、ModelScope 开源 | 已开源 | 均支持本地部署 |
The table above summarizes the core features of DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities. with a comparison between the two versions. Key metrics include 1 million tokens of context, innovative attention mechanism, and Agent capabilities approaching Opus 4.6 level.
Agent 能力专项升级 (Agent Capability Upgrade)
针对 Claude Code、OpenClaw 等主流 Agent 框架深度优化，在内部测试中，代码交付质量已接近 Opus 4.6 水平。
DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities. has been deeply optimized for mainstream Agent frameworks such as Claude Code and OpenClaw. In internal evaluations, its code delivery quality has approached the level of Opus 4.6.
如何体验？ (How to Experience)
| 体验方式 | 操作说明 |
|---|---|
| 在线体验 | 登录 chat.deepseek.com 或官方 App |
| API 调用 | 更新 model_name 为 deepseek-v4-pro 或 deepseek-v4-flash |
| 本地部署 | 从 HuggingFace、ModelScope 下载开源模型 |
Method Instruction Online Visit chat.deepseek.com or use the official App API Set model_name to deepseek-v4-proordeepseek-v4-flashLocal Download from HuggingFace or ModelScope
注意：旧版接口
deepseek-chat与deepseek-reasoner将于 2026 年 7 月 24 日停用。
Note: Legacy interfaces
deepseek-chatanddeepseek-reasonerwill be deprecated on July 24, 2026.
总结 (Conclusion)
在 AI 技术飞速发展的今天，看到国产大模型一步一个脚印，朝着 AGIArtificial General Intelligence, a type of AI that can understand, learn, and apply knowledge across a wide range of tasks. 的目标踏实前进，确实让人倍感鼓舞。技术的进步最终将服务于人，而开放与共享的精神，正是推动这一切的核心动力。
In today's rapidly evolving AI landscape, seeing domestic large models taking steady steps toward the AGIArtificial General Intelligence, a type of AI that can understand, learn, and apply knowledge across a wide range of tasks. goal is truly inspiring. Technological progress ultimately serves humanity, and the spirit of openness and sharing is the core driving force behind all this.
本文信息基于 DeepSeek 官方发布资料整理，具体技术细节请以官方技术报告为准。
This article is compiled based on official press releases from DeepSeek. For detailed technical specifics, please refer to the official technical report.
常见问题（FAQ）
DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities.的上下文长度是多少？
DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities.支持100万token上下文（约数十万字），Pro和Flash版本均具备此能力，且采用创新注意力机制神经网络中的一种技术，使模型能够根据输入的不同部分分配不同的重要性权重，从而更好地处理序列数据。降低计算成本。
如何体验DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities.模型？
可通过chat.deepseek.com或官方App在线体验；API调用时设置model_name为deepseek-v4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities.-pro或deepseek-v4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities.-flash；也可从HuggingFace、ModelScope下载开源模型本地部署。
DeepSeek-V4The next-generation model planned for release by DeepSeek in mid-February 2026, focusing on enhanced code generation and processing capabilities.的Agent能力模型使用工具、与环境交互、执行多步任务的能力，Qwen3通过优化工具调用模板、支持MCP协议和强化学习显著增强了Agent功能。有何提升？
针对Claude Code、OpenClaw等主流Agent框架深度优化，代码交付质量接近Opus 4.6水平，标志着开源模型首次比肩顶级闭源模型。
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