Runway has continued to develop its AI video generator by continuously introducing new AI models. While Gen-3 Alpha isn't the most recent release, it is popular among online users for its exceptional visual fidelity and realism.
In this detailed guide, we will take some time to explore everything about Gen-3 Alpha that makes it such a valuable resource for content creators. We will also break down how you can use Runway Gen-3 Alpha to produce high-quality video content in a flash!
What is Runway Gen-3 Alpha?

In June 2024, Runway's Gen-3 Alpha was launched to be a new benchmark in AI video creation over the initial Gen-2 model. It offers text-to-video generation and image-to-video generation but unlike Gen-2, it also supports video-to-video generation. In addition, Runway Gen-3 Alpha is built on new infrastructure that can better understand complex prompts.
However, its main highlight is its capacity to generate more lifelike and detailed visual content that presents authentic character movement and physics. On top of that, Gen-3 Alpha comes with several new features and capabilities that help make it easier to produce more complex and engaging visual scenes.
What Features & Capabilities Does Gen-3 Alpha Offer?
Gen-3 Alpha is meant to be an improvement on the previous Gen-2 model, which means it comes with a wide range of tools and features to explore. Let's break them down in detail below.
- Runway Text to Video: Crec prompts that bring your ideas to life.
- Runway Image to Video: You can use Gen-3 Alpha to produce videos using descriptive text prompts and/or image uploads. This makes it possible to produce custom visuals and explore diverse concepts and styles.
- Runway Video-To-Video Generation: This added feature makes it possible to rework existing videos into different custom styles such as cartoon, 80s Vaporwave, anime, cine lens, etc. This provides you with more versatility in your video creation workflow.
- Longer Video Duration: With Gen-3 Alpha, you can generate videos up to a maximum of 10 seconds, compared to the 4-second limit on Gen-2. As a result, it is easier to produce longer and more captivating video sequences that will keep audiences engaged.
- Act One Animator: This is a new feature available on Gen-3 Alpha that lets you animate still character images or even live-action videos with realistic movements. It even lets you upload character references making it possible to experiment with unique designs.
- Runway Video Extender: This enables you to extend your video's duration by stitching an additional generation that continues the motion in the initial video. In doing so, you can produce even longer videos that look natural and realistic.
- Runway Lip Syncing Audio: You can use this to create character videos with natural mouth movements in sync with any uploaded audio or script. In doing so, you can produce videos that look just as real as if they were shot with an actual camera.
How To Use Runway Gen-3 Alpha
Runway's Gen-3 Alpha is relatively simple enough to operate making it an accessible model for any content creator looking to produce quality visuals with no hassle. Just follow the steps we've outlined below to get started.
Step 1: Register User Account

You will first need to register for a new user account on Runway by heading to the website, and clicking on the 'Get Started' button. Once you fill in the details and sign up, you can verify your account and head to the user dashboard to begin.
Step 2: Start New Session

From the dashboard, you can scroll down to the 'Start New Session' icon or click on 'Generative Session'. This will open the video generation page, where you can look to the bottom of the page and choose the Gen-3 Alpha model to start the video creation process.
Step 3: Text/Image/Video-To-Video Generation

Gen-3 Alpha allows users to upload images and videos to use as a starting reference. With this model, you can upload two images to use as the first and last keyframes of the video. You will also need to ensure the images have the same aspect ratio or just crop them.
Step 4: Input Detailed Text Prompt

You can input a simple yet descriptive text prompt to explain what you want in the final output. This means specifying aspects like camera view, character actions, special effects, etc. Keep in mind uploading an image or video without a text prompt can lead to unpredictable output.
Step 5: Customize Your Video

Compared to Gen-2, Gen-3 Alpha lacks a lot of customization options to use before generating videos. However, you can head to the left-hand menu and select the Act-One feature to create an animated video based on your existing content and character reference.
Step 6: Generate Your Video

Once ready, you can select the video length, be it 5 or 10 seconds before clicking the 'Generate' button to begin the creation process. You can typically expect the final output to be produced within minutes. At this point, you can download the file in GIF or MP4 format.
Step 7: Edit the Generated Output

If you want to edit the video further, simply click on 'Actions'. You can choose between; 'Extend' to make the video longer, 'Lip Sync' to add accurate voiceovers, 'Video-to-Video' to change the visual style, 'Edit' to customize certain visual aspects or 'Upscale' to increase the resolution.
Why Should You Use Gen-3 Alpha?
We've established what features Gen-3 Alpha offers and even how to use it. However, the question remains; why should you choose this AI model over other similar ones such as Runway Gen-2?
High-Fidelity Output
Runway Gen-3 Alpha improves upon visual quality by generating highly detailed videos with authentic, lifelike character movements that flow neatly and realistically. It also guarantees there are no glitches or obscurities from frame to frame, which ensures a smooth and seamless viewing experience from start to finish.

Detailed & Lifelike Characters
Runway Gen-3 Alpha consistently produces lifelike human subjects that talk, behave, move or perform in such a realistic way the video seems like it was shot using a real camera. Whether it's running, walking, smoking, jumping or any other activity, this model does well to produce believable videos making it ideal for conveying all kinds of stories.

Advanced Temporal Controls
Gen-3 Alpha is capable of analyzing and understanding complex prompts layered with multiple scenes, actions, and ideas in one. This also means you can dictate how certain actions are carried out at set precise moments of the video. It also delivers smooth transitions between different scenes, so you can be confident the final output will meet your needs.

How To Use Descriptive Text Prompts on Gen-3 Alpha?
Since Gen-3 Alpha accommodates both text and image generation, there are a few key considerations that you should take into account to get the best possible results. For starters, Runway recommends its users follow this basic text prompt format: "[camera movement]: [establishing scene]. [additional details]."
A good example of this in action is: [Close-up camera view, a beautiful young woman stares into a rippling pond smiling, the sun gleaming behind her]. A good rule of thumb is the more details you provide, the more precise the video output will be. When it comes to image-to-video generation, there are a few unique considerations to remember.
For one, you should always use simple and direct prompts that describe the type of movement you want to see in the video. For example, a good text prompt would be: [Over the shoulder camera: subject runs through the open field towards the lake in front of her, the weather is getting progressively darker and cloudy].
Moreover, you should always avoid using prompts that differ from the uploaded image because it can lead to unpredictable results. You can check out some other general tips to follow below:
- When using Gen-3 Alpha, you should aim to stick to a "sweet spot" when writing prompts. This means using prompts that aren't too simple or overly complex.
- You should try to use the sms prompt style as much as possible, especially when creating follow-up scenes to ensure visual consistency is maintained.
- Feel free to learn more about different camera movements and shots, as this lets you provide the model with even better instructions on how to direct the desired video clip.
Learn More: RunwayML Prompting Guide
Try Gen-3 Alpha for Free Today on Pollo AI

Besides Runway, you can also access all the benefits that come with Gen-3 Alpha by using Pollo AI. This is a state-of-the-art AI video generator that can produce stunningly realistic videos using descriptive text prompts, images or existing videos. You can use this platform to produce stylistic animations, 3D videos, cinematic shorts, and more.
On top of that, it can be relied on to generate videos of up to 1080p resolution. It also offers access to several visual customization tools that you can use to edit the final output such as camera movement, length, aspect ratio, and more. Best of all, Pollo AI is integrated with various AI video generators like Runway AI, Kling AI, Hailuo AI, Luma AI, and more.
This means you can use Pollo AI to access Gen-3 Alpha and several other AI video generation models in one convenient place. This makes it easy to experiment with different visual styles and explore new creative ideas. Also, since Pollo AI is free to use, this makes it an even more cost-effective solution than Runway.
Conclusion
Runway's Gen-3 Alpha can help anyone produce stunning video content with lifelike characters and realistic motions. Whether you want to use simple text prompts, an image reference or even transform an already existing video, it has the capabilities to deliver exceptional output. Feel free to check out Pollo AI to access it and other similar AI generation models in one place now!