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DeepSeekDeepSeek Chat

深度求索DeepSeek

国产China-origin 免费+注册Free + registration 推理模式Reasoning mode 开源权重同族Related open-weight family 已备案Filed partial lifecycle: active 核验Checked 2026-10-22

DeepSeek 是「推理向问答 + 官方模型文档可回溯」的国产对话产品：云端对话与 API 文档同族，开源权重线在站外可选；备案号经两家云厂商官方公示页交叉核验。

DeepSeek is the domestic chat product built on reasoning-first Q&A with traceable official model docs: cloud chat and API docs share one family, open-weight models are selectable off-site; the filing number is cross-verified on two cloud vendors' official disclosure pages.

适合与不适合When to use it, when not to

适合：中文推理问答、要模型文档可回溯、云端与本地权重同族可选。不适合：要后台长任务、要办公/社交生态联动。

Fits: Chinese reasoning Q&A, traceable official model docs, cloud + local open weights in one family. Not a fit: background long tasks, office/social ecosystem integration.

中文生态China availability 国产 / 国内可直接用 / 备案状态 · 快照domestic / direct access / CAC filing · snapshot 2026-10-22

出品属地Origin: 国产domestic　深度求索（杭州）。DeepSeek (Hangzhou).
国内使用Direct access: 大陆可直连direct OK　chat.deepseek.com 大陆直连实测 429（2026-10-22）——限流但可达，非站点死亡。chat.deepseek.com measured 429 direct from mainland (2026-10-22) — rate-limited but reachable, not dead.
备案状态CAC filing: 已备案Filed：Beijing-DeepseekChat-202404280016Beijing-DeepseekChat-202404280016　公示名称「求索对话 DeepSeek Chat」　listed as "Qiusuo Chat (DeepSeek Chat)"　·　备案号经阿里云百炼与火山方舟两页官方公示交叉核验；属地北京，2024 年新增批次。filing no. cross-verified on Alibaba Cloud Model Studio and Volcengine Ark official disclosure pages; Beijing jurisdiction, added in a 2024 batch.

备案信息以网信办《生成式人工智能服务已备案信息》公示名单为准（按批次滚动更新，本站只抄编号不解读）；「大陆可直连」是本站从大陆网络直连实测的结果，不是厂商承诺。GitHub 类站点当日实测有波动，口径写在依据里。Filing status is quoted from the CAC public registry (updated batch by batch; this site copies the number and does not interpret it). "Direct access" is this site's own reachability measurement from a mainland network, not a vendor promise. GitHub-hosted sites fluctuated on the measurement day — the note says so.

固定坐标系Fixed coordinate system

8 个维度dimensions, 与同分区其他对象逐项可比each comparable item by item against others in the same section.

模型与开放条件Model & openness: 消费应用与 API 线共用官方模型族：api-docs.deepseek.com 官方文档列模型名与版本记录（news 页有模型更新公告）；应用内模型档位以登录后界面展示为准。开源权重线（HF/ModelScope）是同一厂商的另一面——本地跑归 runner 档案。
The consumer app and the API line share the official model family: api-docs.deepseek.com's official docs list model names and version records (the news page carries model-update announcements); in-app model tiers are per what the signed-in UI shows. The open-weight line (HF/ModelScope) is the same vendor's other face — running locally belongs to the runner dossiers.
运行位置Where it runs: 网页（chat.deepseek.com）+ iOS/Android App；生成在厂商云端处理，本机不跑模型。 API 线（platform.deepseek.com）是开发者入口，与对话产品同厂商两接口。
Web (chat.deepseek.com) + iOS/Android apps; generation is processed on the vendor's cloud, no model runs locally. The API line (platform.deepseek.com) is the developer entry — same vendor, two interfaces alongside the chat product.
本地文件Local files: 对话历史存于账户侧；上传文件解析在云端进行。未见官方声明的本机数据面——对话产品不承载本地文件。
Chat history is stored on the account side; uploaded-file parsing happens in the cloud. No locally-oriented data surface declared by the official side — the chat product does not carry local files.
关机后的任务Tasks after shutdown: 对话即时返回，无离线任务队列形态（官方未声明后台任务面）；「深度思考」模式是会话内的推理档位切换，不是异步任务。
Chats return instantly with no offline task-queue form (no background-task surface declared officially); the "Deep Thinking" mode is an in-session reasoning-tier switch, not an async task.
工具与扩展Tools & extensions: 联网搜索与文件解析是产品内能力线；无自建 agent/工作流面（官方未声明）。MCP 支持未核验到官方声明。
Web search and file parsing are in-product capability lines; no self-built agent/workflow surface (not declared officially). No official statement verified for MCP support.
上下文与记忆Context & memory: 会话历史按对话组织、登录同步；跨会话记忆机制未核验到官方声明（未知就说未知）。上下文长度按模型档决定，官方文档给模型参数页。
Session history is organized per conversation and syncs when signed in; no official statement verified for a cross-session memory mechanism (if unknown, say unknown). Context length is decided by the model tier; the official docs have a model-parameters page.
权限与限制Permissions & limits: 账号体系（手机号注册）；训练用途口径见官方隐私政策与「Model Mechanism and Training Methods」专页（cdn.deepseek.com 直抓所见入口），具体开关路径未逐条核验。
Account system (phone-number registration); the training-use terms are in the official privacy policy and the dedicated "Model Mechanism and Training Methods" page (entry seen via direct fetch of cdn.deepseek.com); the exact switch path not verified item by item.
适合什么任务Best for: 适合：中文推理向问答、要官方模型文档可回溯（API 文档质量在国产里突出）、开源权重与云端同族可选。不适合：要后台长任务/工作流、要生态联动（办公/社交套件）。
Suits: Chinese reasoning-oriented Q&A, wanting traceable official model documentation (the API docs quality stands out among domestic products), open weights and cloud being the same family with both options. Does not suit: background long tasks/workflows, or ecosystem integration (office/social suites).

头号误解Top misconception

把对话产品与 API 平台混为一谈——chat.deepseek.com 与 platform.deepseek.com 同厂商两接口，条款与配额各自成页Mixing the chat product with the API platform — chat.deepseek.com and platform.deepseek.com are two interfaces of one vendor, with separate terms and quotas
把开源权重当产品本体——权重本地跑归 Ollama/llama.cpp 等 runner，与云端对话产品的数据边界完全不同Treating open weights as the product itself — running weights locally belongs to Ollama/llama.cpp runners, with a completely different data boundary from cloud chat
直抓 chat.deepseek.com 返回 429 是限流不是站点死亡（2026-10-22 实测）——浏览器可达Direct fetch of chat.deepseek.com returns 429 — that is rate limiting, not a dead site (measured 2026-10-22); browsers reach it

未知项清单Known unknowns

应用内模型档位分流细节（未登录核实）
训练用途开关路径与默认态（未逐条核验）
跨会话记忆机制（未核验到官方声明）
文件解析格式/大小上限（未核验）

In-app model tier routing details (not verified while signed in)
The training switch path and default state (not verified item by item)
The cross-session memory mechanism (no official statement verified)
File-parsing format/size limits (unverified)

证据来源Evidence sources

判断可回到以下一手源复核。本站核验日Every judgement can be rechecked against the primary sources below. Verified on 2026-10-22，内容更新日content updated on 2026-10-22。

类型Type	名称Name	链接Link
official	DeepSeek API Docs · 官方文档（模型名/版本/news 更新线）DeepSeek API Docs · official docs (model names/versions/news update line)	https://api-docs.deepseek.com/
changelog	DeepSeek API Docs · News（模型更新公告，changelog）DeepSeek API Docs · News (model-update announcements, changelog)	https://api-docs.deepseek.com/news/news250324
official	DeepSeek · Terms of Use（官方条款，2026-10-22 直抓核验）DeepSeek · Terms of Use (official terms, direct-fetch verified 2026-10-22)	https://cdn.deepseek.com/policies/en-US/deepseek-terms-of-use.html
official	阿里云百炼 · 模型备案信息公示（求索对话 DeepSeek Chat 备案号交叉核验）Alibaba Cloud Model Studio · Model Filing Information Publicity (DeepSeek Chat filing number cross-verification)	https://help.aliyun.com/zh/model-studio/model-filing-information-publicity

实测记录Measured runs

本档未跑对话任务集；能力结论来自官方文档，不评价回答质量。

实测建议（三条，都指向官方可读页没给的东西）：

应用内模型档位选择器的实际形态（登录后才可见，本站未登录核实）
训练用途开关的路径与默认态（隐私政策入口已见，开关未逐条核验）
文件解析的格式与大小上限（产品页有叙事，边界未核验）

This site has not completed measured runs. The coding-oriented test protocol is at protocols/coding/_protocol.md (the coding task suite does not apply to chat products).

Suggested measurements (three, all pointing at things the official readable pages do not give):

The actual form of the in-app model tier selector (only visible after signing in; this site did not verify while signed in)
The training switch path and default state (the privacy-policy entry was seen; the switch not verified item by item)
Format and size limits of file parsing (the product page has the narrative; the boundary unverified)