[Extra Edition] [October Issue] Is Sora 2 Really That Good? I Compared It with Other AIs!

Hello, this is Sera.
Today, I'm going to talk about "comparing where Sora 2 excels and where it falls short."

The evolution of AI video generation is accelerating, and OpenAI's Sora 2 is attracting particular attention.
So, in reality, how does it compare to competing models like Google's or Runway's in terms of strengths and weaknesses?

Strengths of Sora 2

First, what stands out is its ability to reproduce "realistic movement."
For example, the way a soccer ball bounces when it misses the goal or how objects collide with each other—the ability to create physically natural behavior is a major point of differentiation.

Furthermore, because Sora 2 can generate video and audio simultaneously, dialogue and sound effects synchronize naturally with the visuals. This all-in-one mechanism makes it easy to create short videos that can be posted directly to social media.

Another feature is the Cameo function.
Once you register your face and voice, you can appear in videos with a single tap. Since it is based on the user's consent, a certain level of safety is also ensured.

Strengths of Other AIs

On the other hand, competing models also have their highlights.

Google's Veo 3 is highly regarded for its long-form video and lip-sync accuracy, and it has a well-established billing system and API offering geared toward commercial use. It is likely better suited for large-scale production and corporate use.

Also, Runway Gen-4 is designed with film and advertising production in mind, allowing for fine control over character consistency and camera work. It is designed to be naturally integrated into professional video production workflows.

Furthermore, open-source systems (like Open-Sora) are attractive for their flexibility to run on your own servers and their cost-efficiency. These are actually more suitable for research and development or internal corporate experimentation.

Weaknesses and Risks of Sora 2

Of course, Sora 2 also has its challenges.

First, it is not suitable for long-form video or precise video production. While it is strong for short-form content that pops on social media, its limitations are noticeable in film and advertising settings.

Next, it is a closed environment. It is limited to an invitation-only or app-based offering, and there are restrictions on large-scale use via API.

And the biggest issue is copyright and legal risk. Sora 2 uses an "opt-out" method, which has sparked strong backlash from artists and rights holders. Additionally, misuse such as Deepfakes has already been reported, and social debate on this will likely continue.

Which AI should you choose?

In conclusion, the AI you should choose depends on the usage scenario.
• Social Media Creators: Sora 2 is optimal. You can intuitively create "viral short videos" with Cameo and remix features.
• Advertising/Video Production Professionals: Runway or Veo 3 are more advantageous. Sora 2 is not powerful enough for settings that require long-form content or fine control.
• Research and Internal Verification: Open-source systems are safer and more efficient. You can prioritize cost and the freedom of customization.

Summary

Sora 2 has a powerful weapon as a "video AI for the social media era."
It is perfect for individual creators who want to make short, impactful videos.

However, for long-form, commercial, and production purposes, other AIs still have the edge.
In other words, whether it's "short-form social media" or "long-form professional production"—the AI you should choose is clearly divided by the intended use.

This was Sera, writing down my thoughts as an amateur.