4K
Also written: UHD, Ultra High Definition
A video resolution with approximately 4000 horizontal pixels, offering high detail and clarity.
4K refers to a very high video resolution. It means the video has about 4000 pixels horizontally, which is much more detail than older standards like HD. This results in sharper, clearer images, especially noticeable on larger screens.
For example, when Google's Veo 3.1 generates video, it can produce content in 4K. This allows for professional-quality visuals with fine details that would be lost at lower resolutions.
4K, also known as UHD (Ultra High Definition), typically denotes a display resolution of 3840x2160 pixels. This resolution offers four times the pixel count of Full HD (1920x1080), providing significantly enhanced image detail and clarity. For AI video generation models, achieving 4K output represents a substantial leap in fidelity, requiring more complex architectures and greater computational resources for rendering.
Google's Veo 3.1 is now offering professional 4K video generation. This indicates a push towards higher visual fidelity in AI-generated content, moving beyond lower resolutions to meet professional creative demands.
- Veo 3.1 | Gemini APIGoogle · Gemini Models ·
- Google Gemini
- Google Gemini's Veo 3.1 offers professional 4K video generation.
- HD
- High Definition (HD) is a lower video resolution, typically 1280x720 or 1920
- 8K
- 8K is an even higher resolution than 4K, with approximately 8000 horizontal
The term '4K' originated in the digital cinema industry, referring to a horizontal resolution of approximately 4000 pixels. It was adopted for consumer displays and broadcast standards as a benchmark for enhanced visual fidelity.
You can experience the difference in detail by comparing videos online. Search for "4K nature documentary footage" and "HD nature documentary footage" on platforms like YouTube. Observe how much sharper and more lifelike the 4K version appears, especially when viewed on a large screen or with a high-quality display.
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Questions people ask
- What is the main benefit of 4K video?
- The main benefit of 4K video is its significantly higher detail and clarity compared to lower resolutions like HD, making images sharper and more lifelike.
- Is 4K the highest resolution available?
- No, 4K is not the highest resolution. Higher resolutions like 8K exist, offering even more pixels and detail, but 4K is currently a widely adopted standard for high-quality video.
First seen on Subvolts Oct 8, 2026. Updated Oct 15, 2026. Written by an AI model from the items above and reviewed against them weekly; report an error.