Comprehensive side-by-side LLM comparison
GPT-4o leads with 37.1% higher average benchmark score. GLM-4.6 offers 52.2K more tokens in context window than GPT-4o. GLM-4.6 is $9.90 cheaper per million tokens. Overall, GPT-4o is the stronger choice for coding tasks.
Zhipu AI
GLM-4.6 is a multimodal language model developed by Zhipu AI. It achieves strong performance with an average score of 61.2% across 7 benchmarks. It excels particularly in AIME 2025 (93.9%), LiveCodeBench v6 (82.8%), GPQA (81.0%). It supports a 197K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Zhipu AI's latest advancement in AI technology.
OpenAI
GPT-4o is a multimodal language model developed by OpenAI. The model shows competitive results across 39 benchmarks. It excels particularly in AI2D (94.2%), DocVQA (92.8%), ChartQA (85.7%). It supports a 144K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2024, it represents OpenAI's latest advancement in AI technology.
1 year newer
GPT-4o
OpenAI
2024-08-06
GLM-4.6
Zhipu AI
2025-09-30
Cost per million tokens (USD)
GLM-4.6
GPT-4o
Context window and performance specifications
Average performance across 44 common benchmarks
GLM-4.6
GPT-4o
Available providers and their performance metrics
GLM-4.6
DeepInfra
ZeroEval
GPT-4o
GLM-4.6
GPT-4o
GLM-4.6
GPT-4o
Azure
OpenAI