The landscape of image editing and generation is evolving with the introduction of several new models, including Nano Banana 2, Grok Imagine, and Seedream 5 Lite. Here’s a detailed overview of these models and their key features.
Starting with Nano Banana, which was released by Google in August 2025 and is based on the Gemini 2.5 Flash technology. This model has a resolution limit of 1K and is being gradually replaced by the newer Nano Banana 2. It falls short in quality compared to its successors. Users can access it for free via Google AI Studio and the Gemini App.
Next, we have the Nano Banana Pro, also from Google, launched in November 2025 and built on the advanced Gemini 3 Pro framework. This model supports resolutions up to 4K and consistently ranks among the best in performance. It is known for delivering high-quality, cinematic results and is available for a fee starting at $0.09 per image for 4K resolution through @photofixerbot.
The latest addition, Nano Banana 2, was introduced in February 2026 and is based on the Gemini 3.1 Flash. This model offers fast processing at 1K resolution and supports up to 4K. A standout feature is its integrated web search capability, allowing it to gather information during the image generation process. Its quality is on par with the Pro version, making it an excellent choice for users seeking a balance between speed and quality. Free access is available through the Gemini App, though it comes with a watermark and daily usage limits. For those wanting a watermark-free experience at higher resolutions, paid access is also available through @photofixerbot.
It’s important to clarify that while Nano Banana 2 is an upgrade from the original Nano Banana, it is not the same as the Pro version.
In the realm of other models, Grok Imagine, developed by xAI, ranks highly in performance benchmarks and supports 2K output with less stringent content guidelines. It allows for the use of up to five reference images, making it the fastest AI model in its category. Users can access a basic version for free, but for enhanced features, the premium version through @photofixerbot is available.
Seedream, created by ByteDance, is recognized for its excellent face consistency in generated images, making it ideal for AI photoshoots. The Seedream 4.5 model supports resolutions up to 4K, while the 5 Lite version can reach up to 3K. Despite internal benchmarks suggesting that 5 Lite performs better than 4.5, independent assessments often show the opposite. Currently, only the Lite version is available, with the full Seedream 5 yet to be released.
Overall, for those seeking affordable high-quality 4K images with a focus on face consistency, Seedream 4.5 is recommended. For enhancing low-quality images, premium models such as Nano Banana Pro and 2, Grok Imagine at 2K, and Seedream are the best options. Basic image enhancement services remain free through @PhotoFixerBot.
Informational material. 18+.
