If you're looking for a platform that offers high-resolution backgrounds and access to Midjourney prompts, Background is a great option. It offers a large library of AI-generated backgrounds in 6K resolution along with the corresponding Midjourney prompts. The platform has six curated collections and offers a perpetual license for personal and commercial use, with new backgrounds added regularly for a one-time fee of $59.
Another option is Prompt Hunt, which lets artists create high-end images with large language models like Midjourney. It offers AI prompt templates, privacy mode and categories for different creative uses, including photography and graphic design. The service offers three pricing tiers, so you can choose the level of service that works for you.
Last, getimg.ai offers a range of tools for generation and editing, including high-resolution image generation from text prompts. The service supports several AI models and offers tools like Image to Video conversion and AI Canvas to expand images. It's good for different use cases, including art and photorealism, and offers pricing plans based on credits.