Skip to main content
← Back to Models
⚖️

Ernie 4.0vsGPT-4o

Baidu AI vs OpenAI — Side-by-side model comparison

GPT-4o leads 4/5 categories

Head-to-Head Comparison

MetricErnie 4.0GPT-4o
Provider
Arena Rank
#2
Context Window
128K
128K
Input Pricing
Undisclosed/1M tokens
$2.50/1M tokens
Output Pricing
Undisclosed/1M tokens
$10.00/1M tokens
Parameters
Undisclosed
~200B (est.)
Open Source
No
No
Best For
Chinese language, enterprise AI, search
General purpose, coding, analysis
Release Date
Apr 16, 2024

Ernie 4.0

Ernie 4.0, developed by Baidu AI, is Baidu's flagship language model with a 128K token context window powering the Wenxin Yiyan (ERNIE Bot) platform. The model excels at Chinese language understanding, enterprise AI applications, and search-integrated tasks. Built on years of pre-training research and Baidu's massive Chinese web corpus, Ernie 4.0 demonstrates strong performance on Chinese language benchmarks, knowledge-intensive tasks, and multi-turn conversations. The model integrates with Baidu's search ecosystem, enabling grounded responses with current Chinese-language information. Ernie 4.0 targets the Chinese enterprise market with deployment through Baidu Cloud. As one of the earliest Chinese foundation models, it has established a significant user base within China's domestic AI market where it competes with Qwen, GLM, and Baichuan.

View Baidu AI profile →

GPT-4o

GPT-4o is OpenAI's flagship multimodal model, capable of processing text, images, and audio in a unified architecture. The 'o' stands for 'omni,' reflecting its ability to seamlessly handle multiple input types. With a 128K token context window and competitive pricing, it strikes an optimal balance between capability and cost-effectiveness. GPT-4o delivers fast response times while maintaining strong performance across coding, analysis, creative writing, and visual understanding tasks. It powers ChatGPT's default experience and is one of the most widely deployed AI models globally, serving millions of API calls daily. The model supports function calling, JSON mode, and structured outputs, making it highly versatile for production applications. Its combination of speed, quality, and multimodal capabilities makes it the go-to choice for most general-purpose AI applications.

View OpenAI profile →
E

When to use Ernie 4.0

  • +Your use case involves chinese language, enterprise ai, search
View full Ernie 4.0 specs →
G

When to use GPT-4o

  • +Your use case involves general purpose, coding, analysis
View full GPT-4o specs →

The Verdict

GPT-4o wins our head-to-head comparison with 4 out of 5 category wins. It's the stronger choice for general purpose, coding, analysis, though Ernie 4.0 holds an edge in chinese language, enterprise ai, search.

Last compared: April 2026 · Data sourced from public benchmarks and official pricing pages

Frequently Asked Questions

Which is better, Ernie 4.0 or GPT-4o?
In our head-to-head comparison, GPT-4o leads in 4 out of 5 categories (arena rank, context window, input pricing, output pricing, and parameters). GPT-4o excels at general purpose, coding, analysis, while Ernie 4.0 is better suited for chinese language, enterprise ai, search. The best choice depends on your specific requirements, budget, and use case.
How does Ernie 4.0 pricing compare to GPT-4o?
Ernie 4.0 charges Undisclosed per 1M input tokens and Undisclosed per 1M output tokens. GPT-4o charges $2.50 per 1M input tokens and $10.00 per 1M output tokens. For high-volume production workloads, the pricing difference can significantly impact total cost of ownership.
What is the context window difference between Ernie 4.0 and GPT-4o?
Ernie 4.0 supports a 128K token context window, while GPT-4o supports 128K tokens. Context window size matters most for tasks involving long documents, large codebases, or extended conversations.
Can I use Ernie 4.0 or GPT-4o for free?
Ernie 4.0 is a paid API model starting at Undisclosed per 1M input tokens. GPT-4o is a paid API model starting at $2.50 per 1M input tokens.
Which model has better benchmarks, Ernie 4.0 or GPT-4o?
Ernie 4.0's arena rank is not yet available, while GPT-4o holds rank #2. Note that benchmarks don't capture every use case — we recommend testing both models on your specific tasks.
Is Ernie 4.0 or GPT-4o better for coding?
Ernie 4.0's primary strength is chinese language, enterprise ai, search. GPT-4o is specifically optimized for coding tasks. For coding specifically, arena rank and code-specific benchmarks are the best indicators of performance.