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文心Wenxin

百度Baidu

国产China-origin 免费+登录Free + sign-in 百度生态Baidu ecosystem 联网搜索Web search 改名史Name history 已备案Filed partial lifecycle: active 核验Checked 2026-10-22

文心是百度生态里的对话入口（搜索/文库/网盘联动+联网检索）：文心系模型主线不开源权重，首批备案（2023-08-31）；改名史「文心一言→文小言→文心」是检索时最容易踩的坑。

Wenxin is Baidu's ecosystem chat entry (Search/Wenku/Netdisk integration + web search): the ERNIE line keeps weights closed, first-batch filed (2023-08-31); the rename history 'Wenxin Yiyan → Wenxiaoyan → Wenxin' is the easiest retrieval trap.

适合与不适合When to use it, when not to

适合：泡百度生态、中文问答联网检索、文心官方文档可回溯。不适合：要本机跑模型、要脱离百度账号。

Fits: Baidu-ecosystem users, Chinese Q&A with web search, traceable ERNIE docs. Not a fit: running models locally (weights closed), leaving the Baidu account.

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　百度（北京百度网讯科技有限公司）。Baidu (Beijing Baidu Netcom Science and Technology Co., Ltd.).
国内使用Direct access: 大陆可直连direct OK　yiyan.baidu.com 大陆直连实测 200（2026-10-22）。yiyan.baidu.com measured 200 direct from mainland (2026-10-22).
备案状态CAC filing: 已备案Filed：Beijing-WenXinYiYan-20230821Beijing-WenXinYiYan-20230821　公示名称「文心一言」　listed as "Wenxin Yiyan"　·　备案时间filed 2023-08-31　·　首批备案（备案时间 2023-08-31，属地北京）；备案号经百度智能云官方公示页核验——公示名仍用旧品牌「文心一言」，与产品现名「文心」并存，转述时两个都提。first-batch filing (2023-08-31, Beijing); filing no. verified on Baidu Intelligent Cloud official disclosure page — the registry name still uses the old brand "Wenxin Yiyan" alongside the current product name "Wenxin"; mention both when relaying.

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

9 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: 主力是百度自研文心大模型（ERNIE）系列；百度智能云千帆是开发者 API 线，同厂商另一接口。应用内模型档位以登录后界面为准，未登录核实。
The main line is Baidu's self-developed Wenxin (ERNIE) model series; Baidu Intelligent Cloud Qianfan is the developer API line, another interface from the same vendor. In-app model tiers are per the signed-in UI; not verified while signed in.
运行位置Where it runs: 网页（yiyan.baidu.com）+ iOS/Android App + PC 客户端；生成在百度云端处理，本机不跑模型。
Web (yiyan.baidu.com) + iOS/Android apps + PC client; generation is processed on Baidu's cloud, no model runs locally.
本地文件Local files: 对话历史存于账户侧；文档/图片解析在云端进行。未见官方声明的本机数据面。
Chat history is stored on the account side; document/image parsing happens in the cloud. No locally-oriented data surface declared by the official side.
关机后的任务Tasks after shutdown: 对话即时返回；异步任务队列形态未核验到官方声明。产品含「深度搜索/智能体」类能力线（官网导航所见）。
Chats return instantly; no official statement verified for an async task-queue form. The product includes "deep search/agent"-type capability lines (seen in the official-site navigation).
工具与扩展Tools & extensions: 产品内含联网搜索（百度搜索生态是它的信源差异点）、文档解析、图像生成、智能体创建等能力线；与百度文库/网盘联动是官方叙事的一部分。MCP 支持未逐条核验。
In-product capability lines incl. web search (the Baidu search ecosystem is its source differentiator), document parsing, image generation and agent creation; integration with Baidu Wenku (doc library)/Netdisk is part of the official narrative. MCP support not verified item by item.
上下文与记忆Context & memory: 会话历史登录同步；跨会话记忆机制未核验到官方声明（未知就说未知）。
Session history syncs when signed in; no official statement verified for a cross-session memory mechanism (if unknown, say unknown).
权限与限制Permissions & limits: 账号体系（百度账号登录）；训练用途开关路径未逐条核验。文心大模型备案号见 cn 块（官方公示交叉核验）。
Account system (Baidu account login); the training-use switch path not verified item by item. The Wenxin model filing number is in the cn block (cross-verified against official public disclosures).
适合什么任务Best for: 适合：泡百度生态（搜索/文库/网盘）的人、中文问答+联网检索、要文心系模型官方文档可回溯。不适合：要本机跑模型（文心主线不开源权重）、要脱离百度账号。
Suits: people living in the Baidu ecosystem (search/Wenku/Netdisk), Chinese Q&A + web retrieval, wanting traceable official docs for Wenxin-series models. Does not suit: running models locally (the Wenxin main line does not open-source its weights), or leaving the Baidu account.
改名史Name history: 品牌改名史（档案要写清）：文心一言（2023 首发）→ 文小言（2024-09 App 端改名）→ 「文心」统一（2025-11-02 官方口径）——同一产品不同时期三个名字，检索时三个都要认。
Brand renaming history (dossiers must state it clearly): Wenxin Yiyan (2023 launch) → Wenxiaoyan (2024-09 App-side rename) → unified as "Wenxin" (official wording 2025-11-02) — one product with three names across periods; recognize all three when searching.

头号误解Top misconception

改名史陷阱——「文心一言」「文小言」「文心」是同一产品的不同时期名字，别当三个产品The rename-history trap — 'Wenxin Yiyan', 'Wenxiaoyan' and 'Wenxin' are one product across periods; don't treat them as three products
把 yiyan.baidu.com（对话产品）与百度智能云千帆（API 平台）混为一谈——同厂商两接口Mixing yiyan.baidu.com (chat product) with Baidu Intelligent Cloud Qianfan (API platform) — one vendor, two interfaces
把文心当开源权重族——与 DeepSeek/GLM/Qwen 不同，文心主线不开源权重，本地跑这条线不成立Treating ERNIE as an open-weight family — unlike DeepSeek/GLM/Qwen, the ERNIE line keeps weights closed; 'run Wenxin locally' is not a viable path

未知项清单Known unknowns

应用内模型档位分流（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）
文库/网盘联动的数据边界（未逐条核验）

In-app model tier routing (not verified while signed in)
The training-use switch path and default state (not verified item by item)
The cross-session memory mechanism (no official statement verified)
The data boundary of the Wenku/Netdisk integration (not verified item by item)

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	文心 · 官网（产品入口与能力叙事）Wenxin · official site (product entry and capability narrative)	https://yiyan.baidu.com
official	文心 · 协议页（官方页，2026-10-22 直抓核验）Wenxin · agreement page (official page, direct-fetch verified 2026-10-22)	https://yiyan.baidu.com/protocol
changelog	文心 · Blog（产品更新入口，changelog）Wenxin · Blog (product-update entry, changelog)	https://yiyan.baidu.com/blog
official	百度智能云 · 模型备案信息公示（文心一言备案号官方公示）Baidu Intelligent Cloud · Model Filing Information Publicity (Wenxin Yiyan filing number, official disclosure)	https://cloud.baidu.cn/doc/MIAODA/s/gmuln6uw5

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实际形态（登录后才可见）
训练用途开关路径与默认态
与百度文库/网盘联动的数据边界（联动是卖点，边界要实测）

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)
The training-use switch path and default state
The data boundary of the Baidu Wenku/Netdisk integration (integration is the selling point; the boundary needs measurement)