GLM-4vsGPT-4o
Zhipu AI vs OpenAI — Side-by-side model comparison
Head-to-Head Comparison
| Metric | GLM-4 | GPT-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 tasks, reasoning, coding | General purpose, coding, analysis |
| Release Date | Jan 16, 2024 | — |
GLM-4
GLM-4 is Zhipu AI's flagship multimodal model, one of the leading AI models developed in China. It supports text, image, and video understanding with strong performance on Chinese-language tasks while maintaining competitive English capabilities. GLM-4 powers Zhipu's ChatGLM assistant and is widely used across Chinese enterprises for customer service, content generation, and data analysis applications.
View Zhipu 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 →When to use GLM-4
- +Your use case involves chinese language tasks, reasoning, coding
When to use GPT-4o
- +Your use case involves general purpose, coding, analysis
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 GLM-4 holds an edge in chinese language tasks, reasoning, coding.
Last compared: March 2026 · Data sourced from public benchmarks and official pricing pages