According to Google it outperforms GPT-4 in 30 of 32 benchmarks and it was trained in a dataset 10 times larger than that of GPT-4.

https://arstechnica.com/information-technology/2023/12/google-launches-gemini-a-powerful-ai-model-it-says-can-surpass-gpt-4/

https://deepmind.google/technologies/gemini/#introduction