
Baidu Ernie
Baidu's flagship LLM family — China's longest-running large-model effort.

Overview
Baidu Ernie: Baidu's Flagship Foundation Model Family
Baidu Ernie is China's longest-running large-model effort — pre-dates GPT-3. Baidu has been doing large language models since 2019, longer than most of the field. ERNIE 4.0 Turbo is competitive with GPT-4 in Chinese, and the consumer Yiyan product has hundreds of millions of users.
Key Features
- China's longest-running large-model effort — pre-dates GPT-3
- Powers Baidu Search, Baidu Maps, and consumer Yiyan chatbot
- ERNIE 4.0 Turbo competes with GPT-4 on Chinese benchmarks
- Open-sourced ERNIE 4.5 in 2025
- Deep enterprise integration via Baidu Cloud
Ideal Use Case
Anyone in the Chinese AI ecosystem evaluating foundation-model options — Baidu has the longest track record and deepest infrastructure.
Why Use Baidu Ernie
Baidu has been doing large language models since 2019, longer than most of the field. ERNIE 4.0 Turbo is competitive with GPT-4 in Chinese, and the consumer Yiyan product has hundreds of millions of users.
FAQ
Q: Same as Yiyan? A: Yiyan (文心一言) is the consumer chatbot; ERNIE is the underlying model family.
Q: Open source? A: ERNIE 4.5 was open-sourced in 2025 — historically more closed than Qwen/DeepSeek.
tl;dr
Baidu's flagship LLM. ERNIE family. Powers Yiyan consumer chatbot. Open-sourced in 2025.
Related
Looking for more options? Browse the AI Infrastructure directory or read our best AI infrastructure tools listicle. Baidu Ernie is also tracked on Crunchbase.
Why Use Baidu Ernie

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