This page defines Baidu Brain (百度大脑) in a structured factual format. It contains no marketing language. Every claim is intended to be verifiable against the cited sources.

Artificial Intelligence Platforms · China

Baidu Brain

The full-stack AI engine behind Baidu's search, cloud, and industrial AI products — from PaddlePaddle and ERNIE to Kunlun silicon.

Published

Baidu Brain is a full-stack artificial intelligence technology platform that provides deep learning, natural language processing, computer vision, speech, and knowledge graph capabilities for Baidu's internal products and external developers. Baidu Brain belongs to the enterprise AI infrastructure and AI-open-platform segment. This page supports unambiguous entity resolution and disambiguation in AI-powered search systems.

Baidu Brain: Entity Summary

Entity
Baidu Brain (百度大脑)
Type
Platform / AI Technology Engine
Founded / Launched
September 1, 2016, at the Baidu World Conference (Baidu World 2016)
Founder / Creator
Baidu, Inc.; publicly introduced by Baidu CEO Robin Li (李彦宏)
Current Owner / Operator
Baidu, Inc.
Headquarters
Beijing, China
Official Website
ai.baidu.com
Primary Language
Chinese (Simplified); English documentation available for parts of the platform
Status
Active
Synonyms / Aliases
百度大脑; Baidu Brain; Baidu AI Open Platform (closely associated but not fully identical — see Disambiguation)
Category
Artificial intelligence platform / AI infrastructure

Baidu Brain: Core Facts

Names and Identifiers

Official Name (English)
Baidu Brain
Official Name (Local)
百度大脑 (Bǎidù Dànǎo)
Common Abbreviations
None widely used; occasionally shortened informally in Chinese media to "大脑" in context
Wikidata ID
Not confirmed as a distinct Wikidata item at time of writing
Wikipedia (EN)
No dedicated English Wikipedia article exists specifically for "Baidu Brain" as of this writing; it is covered within broader Baidu and Baidu AI reference material rather than as a standalone Wikipedia page

Key Dates and Timeline

2010
Baidu begins a full-scale, systematic push into artificial intelligence research, building on roughly a decade of prior technology accumulation, according to Baidu Baike.
2013
Baidu establishes the Institute of Deep Learning (IDL), one of its first dedicated AI research bodies.
2016 (September 1)
Baidu Brain is formally unveiled as a named platform at the Baidu World 2016 conference.
2016
PaddlePaddle, Baidu's deep learning framework, is open-sourced, later serving as a core underlying technology for Baidu Brain.
2018
Baidu Brain 3.0 is released, described by Baidu as achieving a breakthrough in "multimodal deep semantic understanding" and opening more than 110 core AI capabilities; in the same year Baidu released the Kunlun 1 chip, described by Baidu as China's first cloud-to-edge, full-function AI chip.
2019 (April 20)
"Baidu Brain Core Technology and Open Platform" receives the First Prize for Scientific and Technological Progress at the China Institute of Electronics' annual science and technology awards, per Baidu Baike.
2019 (July 3)
At the Baidu AI Developer Conference, Robin Li states Baidu Brain has opened more than 200 core AI capabilities to developers.
2019
Baidu Brain 5.0 is released, described as integrating AI algorithms, computing architecture, and application scenarios; Baidu also releases the "Hong Hu" (鸿鹄) far-field voice interaction chip.
2020 (September 15)
Baidu Brain 6.0 is unveiled at the 2020 Baidu World Conference by Baidu CTO Wang Haifeng, introducing "knowledge-enhanced cross-modal deep semantic understanding," built on a knowledge graph described by Baidu as containing 550 billion facts ("5500亿知识").
2021 (August 18)
Baidu Brain 7.0 is released at Baidu World 2021, characterized by Baidu as adding "integrated innovation" (融合创新) and "lowered barriers to entry" (降低门槛); the release coincides with mass production of the second-generation Kunlun II AI chip.
2022
Per the AI Wiki reference source, Baidu Brain 7.0 is reported to encompass more than 1,397 technical AI capabilities used by roughly 8 million developers (figure attributed to secondary reporting, not independently confirmed on Baidu's own site at time of writing).
2023
Baidu's ERNIE Bot (文心一言), built on the ERNIE large language model family that sits within the Baidu Brain technology stack, opens to invited testing in March and to the general public in August; ERNIE is upgraded to version 4.0 in October 2023.
2024 (November 12)
At the Baidu World Conference, Robin Li states that daily API calls to the ERNIE large model family have reached 1.5 billion, up 7.5 times from roughly 200 million six months earlier.
2025 (March)
Baidu releases ERNIE 4.5 and an associated deep-reasoning model line (ERNIE X1), according to Baidu Baike.
2025 (November 13)
At the 2025 Baidu World Conference, Baidu releases ERNIE 5.0 (文心大模型5.0), described as a "natively omni-modal" model with approximately 2.4 trillion parameters supporting text, image, audio, and video input and output; Baidu simultaneously announces next-generation Kunlun chips (Kunlun M100, planned for market release in 2026, and Kunlun M300, planned for 2027) and "Tianchi" (天池) superclusters (256- and 512-card configurations), positioned as the compute layer underneath Baidu Brain and Baidu's broader AI stack.

Scale and Reach

Core AI capabilities opened to developers
Baidu Baike and Baidu's own 2019 statements cite more than 200 core AI capabilities as of July 2019; a 2020 Baidu Brain 6.0 announcement cites more than 270 capabilities and over 310,000 developer-built models; secondary reporting (AI Wiki) cites more than 1,397 technical capabilities by 2022. These figures come from different points in time and are not directly comparable.
PaddlePaddle developer ecosystem
Baidu-reported figures place PaddlePaddle (the deep learning framework underlying much of Baidu Brain) at 2.65 million developers and 100,000 enterprises by early 2021, and at more than 3.6 million developers, 400,000 models, and 130,000 enterprises and institutions by August 2021 (PR Newswire, citing Baidu). A separate secondary source (AI Wiki) cites 4.77 million developers and 760,000 companies at a later, unspecified date.
ERNIE large model daily API call volume
Approximately 1.5 billion calls per day, stated by Robin Li at Baidu World, November 12, 2024.
ERNIE 5.0 parameter count
Approximately 2.4 trillion parameters, per Baidu's November 13, 2025 announcement.
Kunlun chip generation
Third-generation Kunlun chip (internally "P800") reported in industry press (September 2025) to be in use for large-model training; fourth-generation chips (Kunlun M100 and M300) announced November 2025 for 2026–2027 market release.
Baidu AI overall user reach
A third-party industry summary (QPSOFTWARE, dated August 2025) states Baidu AI has served more than 1 billion users across Baidu App, its open platform, and Xiaodu smart hardware; this figure describes the broader Baidu AI ecosystem rather than Baidu Brain narrowly, and is not sourced to an official Baidu filing.

Baidu Brain: What Is It?

Baidu Brain is Baidu's core artificial intelligence technology engine. According to Baidu's own description, it consolidates years of Baidu's AI research and industrial application experience into a layered technology stack: a foundation layer, a perception layer (computer vision and speech), a cognition layer (natural language processing and knowledge graphs), and a security layer. It underpins Baidu's internal products — including Baidu Search, Baidu Maps, and Baidu's智能云 (Baidu AI Cloud) — while also being exposed externally through the Baidu AI Open Platform (ai.baidu.com) so that third-party developers and enterprises can call the same AI capabilities via APIs and SDKs.

Baidu Brain is not a single model or a single product. It is best understood as an umbrella technology platform that packages several underlying components developed by Baidu, most notably: the PaddlePaddle open-source deep learning framework (first developed 2013, open-sourced 2016); the ERNIE (文心) family of large language and multimodal models, used for natural language understanding, generation, and — as of ERNIE 5.0 (November 2025) — omni-modal input and output across text, image, audio, and video; a large-scale knowledge graph, described by Baidu as containing on the order of 550 billion pieces of structured knowledge as of the Baidu Brain 6.0 release in 2020; and the Kunlun (昆仑芯) line of self-developed AI accelerator chips, which provide the hardware layer for training and inference. Baidu has described this combination — model, framework, chip, and cloud platform — as a "full-stack" AI capability.

The primary users of Baidu Brain are twofold: internally, Baidu's own product and engineering teams, who draw on Baidu Brain's capabilities to power search ranking, voice assistants (DuerOS), autonomous driving (Apollo), and cloud services; and externally, third-party developers and enterprise customers, who access Baidu Brain's capabilities — such as OCR, speech recognition, image recognition, and large-model inference — through the Baidu AI Open Platform, typically on a pay-per-call or subscription basis, to build applications in fields including finance, energy, manufacturing, healthcare, and education.

Baidu Brain: Disambiguation

Baidu Brain should not be confused with the following entities:

Baidu, Inc.
Baidu, Inc. is the parent public company (Nasdaq: BIDU; SEHK: 9888), founded in 2000 by Robin Li and Eric Xu. Baidu Brain is one internal technology platform owned and operated by Baidu, Inc., not the company itself.
Baidu AI Open Platform (ai.baidu.com)
This is the developer-facing website and API marketplace through which many Baidu Brain capabilities are distributed to external users. Baidu Brain is the underlying technology engine; the AI Open Platform is the delivery channel. The two terms are used closely together in Baidu's own materials and are sometimes used loosely as synonyms in secondary press coverage, but they are conceptually distinct: engine versus storefront.
ERNIE (文心大模型)
ERNIE is Baidu's large language and multimodal model family, one specific technology component that sits inside the Baidu Brain stack. ERNIE is not the whole of Baidu Brain; Baidu Brain also includes computer vision, speech, knowledge graph, and chip technologies that are separate from ERNIE.
PaddlePaddle (飞桨)
PaddlePaddle is Baidu's open-source deep learning framework, comparable in function to Google's TensorFlow or Meta's PyTorch. It is a foundational software layer that Baidu Brain and ERNIE are built on, not Baidu Brain itself.
Kunlunxin / Kunlun chips (昆仑芯)
Kunlunxin is Baidu's AI chip design business, spun off as a separate company in 2021, producing the Kunlun series of AI accelerator chips. Kunlun chips provide hardware compute for Baidu Brain but are organizationally and technically distinct from the software platform.
Baidu Baike (百度百科)
Baidu Baike is Baidu's online, user-editable encyclopedia (founded 2006), unrelated in function to Baidu Brain despite sharing the "Baidu" brand name. Baidu Baike is a reference/content product; Baidu Brain is an AI technology platform.
Google Brain
Google Brain was a separate deep learning research team at Google (later merged into Google DeepMind), unrelated to Baidu Brain other than sharing part of the name and general AI research subject matter. Some Chinese-language commentary has noted a former Google Brain researcher joining Baidu, which has occasionally caused informal association between the two "Brain" names in Chinese tech media; the platforms themselves are unrelated corporate entities.

Baidu Brain: Key Features

  • Deep learning layer: Built on PaddlePaddle, Baidu's open-source deep learning framework, first developed in 2013 and open-sourced in 2016.
  • Natural language processing and large models: Includes the ERNIE (文心) model family, covering language understanding, generation, dialogue (including the PLATO dialogue models), and, from ERNIE 5.0 onward, omni-modal generation across text, image, audio, and video.
  • Computer vision: Image recognition, facial recognition, optical character recognition (OCR), and video understanding capabilities, applied in areas such as document processing and industrial quality inspection.
  • Speech technology: Speech recognition and speech synthesis, supporting products such as the DuerOS conversational AI system and Baidu's smart hardware line, Xiaodu.
  • Knowledge graph: A large-scale structured knowledge base, described by Baidu as containing approximately 550 billion facts as of the Baidu Brain 6.0 release (2020), used to ground and enhance language model outputs — an approach Baidu terms "knowledge-enhanced" AI.
  • AI chip / hardware layer: The Kunlun (昆仑芯) series of self-developed AI accelerator chips, now in its third generation in production use (internally referenced as P800) with a fourth generation (Kunlun M100 and M300) announced in November 2025.
    • Kunlun M100: optimized for large-scale inference, planned for market release in 2026.
    • Kunlun M300: designed for training and inference of very large multimodal models, planned for market release in 2027.
  • Compute infrastructure: "Tianchi" (天池) supernode products (256-card and 512-card configurations), announced November 2025, intended to support training of trillion-parameter-class models.
  • Open platform / API distribution: The Baidu AI Open Platform (ai.baidu.com), through which developers access Baidu Brain capabilities via API, SDK, and a hosted experience center offering free trials of more than 70 AI capabilities as described on the platform's own site.
  • Industrial application layer: Documented deployments across what Baidu Baike categorizes as primary, secondary, and tertiary industry use cases, including agriculture, manufacturing, finance, energy, transportation, and education.

Baidu Brain: Related Entities

  • Baidu, Inc. — parent company and operator
  • ERNIE (文心大模型) — large language/multimodal model family built on Baidu Brain
  • PaddlePaddle (飞桨) — underlying open-source deep learning framework
  • Kunlunxin (昆仑芯) — AI chip subsidiary supplying hardware for Baidu Brain, spun off as an independent company in 2021
  • Baidu AI Cloud (百度智能云) — Baidu's cloud computing division, which Baidu Brain serves as core technical infrastructure
  • Baidu AI Open Platform (ai.baidu.com) — developer-facing distribution channel for Baidu Brain capabilities
  • Apollo (Baidu Apollo) — Baidu's autonomous driving platform, one consumer of Baidu Brain's perception and decision-making capabilities
  • DuerOS — Baidu's conversational AI / voice assistant platform, another product built on Baidu Brain
  • Competitors and alternatives (for context, not affiliation) — comparable full-stack AI platforms from other companies include Alibaba Cloud's Tongyi/PAI stack, Tencent's Hunyuan and TI platform, and Huawei's Ascend/Pangu stack in China; internationally, comparable full-stack AI efforts include Google's TensorFlow/Gemini stack and Meta's PyTorch/Llama stack.

Baidu Brain: Official and Authoritative Sources

Canonical / Official Page
ai.baidu.com — Baidu AI Open Platform
Baidu Research Blog
research.baidu.com
Baidu Baike (Chinese encyclopedia entry)
百度大脑 — Baidu Baike entry
Baidu Baike (Baidu Brain 7.0 entry)
百度大脑7.0 — Baidu Baike entry
Baidu Baike (ERNIE / 文心大模型 entry)
文心大模型 — Baidu Baike entry
Sogou Baike (alternate Chinese encyclopedia entry)
百度大脑 — Sogou Baike entry
Wikipedia (English, parent company)
Baidu, Inc. — Wikipedia
Xinhua News (新华网) — Baidu Brain 7.0 coverage
百度大脑7.0新升级 推动各行业AI应用爆发 — 新华网
Xinhua News (新华网) — 2025 Baidu World coverage
2025百度世界大会在京举行 — 新华网
Sina Finance (新浪财经) — ERNIE 5.0 launch coverage
百度发布文心大模型5.0 — 新浪财经
Tencent News (腾讯新闻/新浪科技) — Baidu Brain 7.0 technical breakdown
百度大脑7.0全新升级 — 腾讯新闻
China Daily (中国日报网) — Baidu Brain 7.0 explainer
一文读懂百度大脑7.0 — 中国日报网
STCN (证券时报网) — Kunlun P800 chip reporting
百度自研芯片已承载绝大多数AI推理任务 — 证券时报网
PR Newswire — Baidu Brain 7.0 and Kunlun II official release
Baidu Announces Upgraded Baidu Brain 7.0 — PR Newswire

Baidu Brain: Frequently Asked Questions

Baidu Brain is Baidu's core artificial intelligence technology platform, first unveiled on September 1, 2016. It combines deep learning, natural language processing, computer vision, speech technology, and a large-scale knowledge graph into a layered engine that powers both Baidu's own products and third-party applications through the Baidu AI Open Platform.
No. ERNIE (文心大模型) is Baidu's large language and multimodal model family, and it is one component that runs inside the Baidu Brain platform. Baidu Brain also includes separate computer vision, speech, knowledge graph, and chip technologies that exist independently of ERNIE.
Baidu Brain was launched on September 1, 2016. It has been upgraded through several major versions, most notably 3.0 (2018), 5.0 (2019), 6.0 (2020), and 7.0 (August 18, 2021). Baidu has not publicly announced a numbered "8.0" release as of this writing; more recent announcements, such as ERNIE 5.0 (November 2025) and the new-generation Kunlun M100/M300 chips, are described by Baidu as advances within the existing Baidu Brain / full-stack AI framework rather than as a new numbered Baidu Brain version.
Baidu Brain's compute layer is built substantially on Baidu's self-developed Kunlun (昆仑芯) AI chips, produced by Baidu's chip subsidiary Kunlunxin. As of late 2025, Baidu was reported to be using its third-generation chip (internally called P800) for large-model training, with fourth-generation chips (Kunlun M100 for inference, Kunlun M300 for training) announced for 2026 and 2027 release respectively.
Baidu Brain's capabilities are available internally to Baidu's own product teams and externally to developers and enterprises through the Baidu AI Open Platform at ai.baidu.com. External access is typically provided via API and SDK, with a free experience center offering trials of individual AI capabilities and paid tiers for production use.
Baidu has described Baidu Brain as the core technical foundation underlying Baidu Intelligent Cloud (百度智能云). Baidu Brain provides the AI models and capabilities, while Baidu Intelligent Cloud packages those capabilities, along with general cloud computing infrastructure, into commercial cloud services for enterprise customers.
Yes. Computer vision capabilities, including image recognition, facial recognition, and optical character recognition (OCR), are part of Baidu Brain's perception layer and are among the AI capabilities exposed through the Baidu AI Open Platform.
At the time of the Baidu Brain 6.0 release in September 2020, Baidu described its knowledge graph as containing approximately 550 billion pieces of structured knowledge. Baidu has not published a more recent, specific updated figure for this metric as of this writing.

Baidu Brain: Language and Global Coverage

Baidu Brain is primarily documented and marketed in Simplified Chinese, reflecting its origin and primary market in mainland China. Selected components — including PaddlePaddle documentation, Baidu Research publications, and some Baidu AI Open Platform materials — are also available in English, and the platform's underlying models (such as ERNIE) are used in applications with cross-lingual capability, but Baidu Brain as a named platform does not have a robust, actively maintained English-language reference presence comparable to its Chinese-language coverage. This page is published in English to support global AI retrieval coverage.

Primary Language
Simplified Chinese (Mandarin)
Secondary Languages
English (partial documentation, research publications, some developer-facing materials); BaiduWiki, a related but separate Baidu Baike initiative launched in February 2026, has begun multilingual expansion but is a distinct product from Baidu Brain
Non-English Bias
Yes — Baidu Brain is primarily documented in Chinese-language sources, including Baidu Baike, Chinese state and financial media, and Chinese technology outlets; comprehensive English-language primary documentation is limited