BaiduResearch Ernie 3.0

Closed Source Models

Baidu Research, the AI research arm of Baidu Inc., develops the ERNIE (Enhanced Representation through Knowledge Integration) series of large language models.

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Develops and commercializes large language models (ERNIE series) and AI cloud infrastructure for enterprises and consumers.

Baidu Research, the AI research arm of Baidu Inc., develops the ERNIE (Enhanced Representation through Knowledge Integration) series of large language models. Founded in 2000 by Robin Li and Eric Xu, Baidu is China's dominant search engine and a major AI company. As of Q1 2026, Baidu Core AI-powered Business revenue exceeded RMB 13.6 billion, accounting for over half of Baidu General Business revenue for the first time.

AI Cloud Infra revenue hit RMB 8.8 billion in Q1 2026, up 79% year-over-year. The company launched ERNIE 5.1 in May 2026, which ranked first among Chinese models on LMArena's text leaderboard and fourth globally on the search leaderboard. Baidu's workforce has shrunk from 41,300 in 2022 to 35,900 at end of 2024, with large-scale layoffs reported in late 2025 affecting up to 40% of some teams, though AI and cloud roles were largely protected.

The company is spinning off its AI chip unit Kunlunxin for a separate listing, announced in January 2026. Despite AI revenue growth, Baidu's total revenue declined 7% year-over-year in Q3 2025, and the company posted a net loss of RMB 11.23 billion that quarter. Baidu's Ernie Bot had 10.77 million monthly active users in September 2025, trailing ByteDance's Doubao (150 million) and DeepSeek (73.4 million). Apollo Go, Baidu's robotaxi service, delivered 3.2 million fully driverless rides in Q1 2026, up over 120% year-over-year.

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Who buys this

  • Enterprises using AI cloud infrastructure (GPU Cloud, AI accelerator infrastructure) for model training and inference
  • Developers and businesses using Baidu's AI applications (DuMate, Miaoda, Famou Agent) for productivity and workflow automation
  • Advertisers using AI-native marketing services (agents, digital humans) on Baidu's mobile ecosystem
  • Government and enterprise clients for Apollo Go robotaxi services in China and internationally

Strengths and what to watch

Strengths

  • AI Cloud Infra revenue grew 79% year-over-year in Q1 2026 to RMB 8.8 billion, with GPU Cloud revenue up 184%, indicating strong enterprise demand for Baidu's full-stack AI capabilities.
  • ERNIE 5.1 ranked first among Chinese models on LMArena's text leaderboard and fourth globally on the search leaderboard as of May 2026, demonstrating competitive model performance.
  • Apollo Go delivered 3.2 million fully driverless rides in Q1 2026, up over 120% year-over-year, with cumulative rides exceeding 22 million, showing real-world autonomous driving scale.

Watch for

  • Baidu's core online advertising business declined 18% year-over-year in Q3 2025, and total revenue fell 7%, as social media platforms like ByteDance's Douyin and RedNote capture market share.
  • Ernie Bot had only 10.77 million monthly active users in September 2025, far behind ByteDance's Doubao (150 million) and DeepSeek (73.4 million), indicating weak consumer adoption of Baidu's flagship AI app.
  • Large-scale layoffs reported in November 2025, cutting up to 40% of some teams, with workforce declining from 41,300 in 2022 to 35,900 at end of 2024, signaling ongoing cost pressures and organizational restructuring.

Recent moves

Key Information

Industry
Closed Source Models
Founded
2000

Frequently Asked Questions

What is Baidu Research ERNIE 3.0?

Baidu Research ERNIE 3.0 is a large language model developed by Baidu's AI research arm. It's part of the ERNIE series designed for natural language understanding and generation, powering Baidu's AI applications and cloud services for enterprises.

How does ERNIE 5.1 rank against other AI models?

As of May 2026, ERNIE 5.1 ranked first among Chinese models on LMArena's text leaderboard and fourth globally on the search leaderboard. This shows competitive performance in language tasks compared to international and domestic alternatives.

What is Baidu AI Cloud revenue in 2026?

Baidu AI Cloud Infrastructure revenue reached RMB 8.8 billion in Q1 2026, up 79% year-over-year. GPU Cloud revenue specifically grew 184%, indicating strong enterprise demand for Baidu's full-stack AI cloud capabilities for model training and inference.

How many users does Baidu Ernie Bot have?

Baidu's Ernie Bot had 10.77 million monthly active users in September 2025. This trails far behind competitors like ByteDance's Doubao with 150 million and DeepSeek with 73.4 million, indicating weak consumer adoption of Baidu's flagship AI chatbot app.

Why is Baidu laying off staff in 2025?

Baidu started large-scale layoffs in November 2025 after reporting a Q3 net loss of RMB 11.23 billion. Some teams faced cuts up to 40%, though AI and cloud roles were largely protected. The workforce shrank from 41,300 in 2022 to 35,900 by end of 2024.

How many driverless rides has Apollo Go completed?

Apollo Go, Baidu's robotaxi service, delivered 3.2 million fully driverless rides in Q1 2026, up over 120% year-over-year. Cumulative rides have exceeded 22 million, demonstrating real-world autonomous driving scale in China and internationally.

Sources

  1. ir.baidu.com — Q1 2026 financial results: AI-powered business revenue RMB 13.6 billion, AI Cloud Infra revenue RMB 8.8 billion, ERNIE 5.1 launch and LMArena rankings, Apollo Go ride data
  2. ir.baidu.com — FY 2025 financial results: AI-powered business revenue RMB 40 billion, AI Cloud Infra revenue RMB 19.8 billion, Kunlunxin spin-off announcement, share repurchase program
  3. ir.baidu.com — Q3 2025 financial results: total revenue decline 7%, net loss of RMB 11.23 billion, AI-powered business revenue ~RMB 10 billion
  4. www.prnewswire.com — Q2 2025 financial results: Baidu Core non-online marketing revenue exceeded RMB 10 billion for first time
  5. finance.yahoo.com — Layoffs starting November 2025, up to 40% cuts in some teams, workforce decline to 35,900, Ernie Bot MAU of 10.77 million vs competitors
  6. ir.baidu.com — Repository of Baidu financial reports confirming workforce numbers and historical data