Comprehensive side-by-side LLM comparison
GPT-4o leads with 8.5% higher average benchmark score. GPT-4o offers 12.3K more tokens in context window than GPT-4.5. GPT-4o is $212.50 cheaper per million tokens. Overall, GPT-4o is the stronger choice for coding tasks.
OpenAI
GPT-4.5 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 63.1% across 27 benchmarks. It excels particularly in GSM8k (97.0%), MMLU (90.8%), CharXiv-D (90.0%). It supports a 132K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI'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.
6 months newer
GPT-4o
OpenAI
2024-08-06
GPT-4.5
OpenAI
2025-02-27
Cost per million tokens (USD)
GPT-4.5
GPT-4o
Context window and performance specifications
Average performance across 42 common benchmarks
GPT-4.5
GPT-4o
Available providers and their performance metrics
GPT-4.5
OpenAI
GPT-4o
GPT-4.5
GPT-4o
GPT-4.5
GPT-4o
Azure
OpenAI