It is worth checking out perplexity.ai - for the same price (20USD per month) you will get to chose between multiple premium models and get some extra benefits:

"With the Pro version of Perplexity AI, you have access to a variety of advanced AI models that enhance your search and problem-solving capabilities. Here are the models you can choose from:

GPT-4o: This is an advanced version of OpenAI's

GPT-4, known for its reasoning and natural language processing abilities. It is designed to provide fast and accurate responses.

Claude 3 Sonnet/Opus: Developed by Anthropic, these models offer natural-sounding responses and are particularly good at processing information from various sources, including the internet and documents.

Sonar Large (Llama 3.1): Based on the LLaMa 3 model, this is optimized for conciseness and accuracy, making it suitable for detailed searches.

Perplexity Experimental Model: This is a proprietary model developed by Perplexity, designed to provide a unique search experience, though it may not be as advanced as the other models.

Additionally, the Pro version includes features such as the ability to upload and analyze files, generate images using models like DALL-E 3 and Stable Diffusion XL, and access to API credits for integrating Perplexity's capabilities into your own projects. These models and features make Perplexity Pro a versatile tool for both general searches and more complex, detailed queries."