Best Open Source Video Generation Models in 2025

From Hollywood-quality human animations to physics-defying simulations, there is so much you can do with AI video generation. But you can do it all without breaking the bank with open-source models. These models have democratised access to cutting-edge technology, helping creators, developers and researchers create stunning cinematic experiences without the prohibitive costs of proprietary systems. Our latest article explores the best open-source video generation models you can try in 2025.

SkyReels V1 by Skywork AI

Built upon the foundation of HunyuanVideo and fine-tuned with over 10 million high-quality film and television clips, the SkyReels V1 model is designed to deliver cinematic-quality videos focusing on realistic human portrayals. It’s a specialised tool for creators who need professional-grade outputs featuring lifelike characters and interactions.

Features of SkyReels V1 by Skywork AI

With SkyReels V1 by Skywork AI, you get:

• Human-Centric Design: Optimised for lifelike human characters with fluid motion.
• Facial Animation: Offers 33 distinct expressions and 400+ movement combinations for expressive storytelling.
• Cinematic Flair: Designed with professional composition, framing, and camera movement in mind.
• Multi-Mode Functionality: Supports Text-to-Video (T2V) and Image-to-Video (I2V) generation.
• Open-Source: Fully customisable, allowing you to refine and expand its capabilities.

What You Can Generate

SkyReels V1 lets you create high-quality videos up to 12 seconds long at 24 frames per second (fps), delivering a total of 288 frames at a resolution of 544x960. It is ideal for short films, detailed character animations and engaging digital advertisements. 

Source: SkyReels YouTube

LTXVideo by Lightricks

Need high-quality video generation without the hassle of high-end hardware? LTXVideo by Lightricks brings rapid, efficient and professional-grade video synthesis to any creator. Unlike heavyweight AI models that demand extensive computational power, LTXVideo is optimised to run smoothly on cost-effective GPUs like the NVIDIA RTX A6000. Its compatibility with ComfyUI allows effortless integration into existing creative pipelines, making it an essential tool for time-conscious creators. With fully open-source access, you can customise, refine and improve its capabilities to meet your needs.

Features of LTXVideo by Lightricks

With LTXVideo by Lightricks, you get:

• Blazing Speed: Delivers ultra-fast video generation, even on mid-tier GPUs.
• Versatile Inputs: Supports Text-to-Video (T2V), Image-to-Video (I2V), and Video-to-Video (V2V).
• ComfyUI Integration: Easily connects with ComfyUI for a streamlined workflow.
• Hardware-Friendly: Runs smoothly on GPUs with as little as 12GB VRAM, though 48GB can deliver better results.
• Open-Source: Completely modifiable for advanced customisation.

What You Can Generate

With LTXVideo, you can generate videos at 24 fps at a resolution of 768x512. It is perfect for rapid prototyping, social media clips or real-time previews where speed and efficiency are key, all while maintaining professional-grade quality.

Source: Lightricks

Mochi 1 by Genmo

If versatility is what you’re after, Mochi 1 by Genmo is your perfect creative partner. Mochi 1 is a 10-billion-parameter diffusion model that has redefined open-source video generation. Built from scratch using the Asymmetric Diffusion Transformer (AsymmDiT) architecture, it bridges the gap between open and closed systems with its high fidelity and prompt adherence. Mochi offers an intuitive trainer that enables you to create LoRA fine-tunes using your own videos. The model can be fine-tuned on a single NVIDIA H100 or NVIDIA A100 with 80GB.

Features of Mochi 1 by Genmo

With Mochi 1 by Genmo, you get:

• AsymmDiT Power: Delivers top-tier video synthesis with enhanced efficiency.
• Compression Magic: AsymmVAE technology ensures fast processing with a 128:1 compression ratio.
• Prompt Precision: Stays true to the input prompt, producing highly accurate outputs.
• User-Friendly Interface: Available via command line and Gradio UI for easy access.
• Apache 2.0 Open-Source: Fully customisable for developers and creators.

What You Can Generate

Mochi 1 enables you to produce videos up to 5.4 seconds at 30 fps, offering 162 frames at 480p (640x480) resolution. It’s well-suited for crafting short, high-fidelity photorealistic clips and detailed creative experiments.

Source: Genmo.ai

HunyuanVideo-I2V by Tencent

HunyuanVideo is a 13-billion-parameter model that has set a new standard for open-source video generation. With performance beating state-of-the-art models like Runway Gen-3, this model excels in cinematic quality, motion accuracy and ecosystem support. HunyuanVideo is trained on a spatial-temporal compressed latent space, achieved through a Causal 3D VAE. Text prompts are processed using a large language model and serve as conditioning inputs. The generative model takes Gaussian noise along with these conditions to generate a output latent, which is then decoded into images or videos via the 3D VAE decoder.

Features of HunyuanVideo by Tencent

With HunyuanVideo by Tencent, you get:

• Massive Scale: 13 billion parameters deliver unprecedented detail and realism.
• Cinematic Output: Accurately simulates real-world physics and smooth motion.
• Audio Integration: Syncs generated visuals with sound effects and background music.

What You Can Generate

HunyuanVideo produces 15-second videos at 24 fps, generating 360 high-quality frames. At a resolution of 720p (1280x720), it excels in creating immersive, dynamic and richly detailed scenes that feel professional. For better quality, it is recommended to use a GPU with 80GB of memory like the NVIDIA H100 PCIe, NVIDIA H100 SXM or the NVIDIA A100. 

Source: Tencent Hunyuan Video

Wan 2.1 by Alibaba

Wan 2.1 by Alibaba is a 14-billion-parameter model (with a lighter 1.3B variant) designed to handle everything from video generation to editing, text-to-image conversion and even video-to-audio processing. It offers multilingual capabilities, processing both English and Chinese fluently. Wan 2.1 is designed for efficiency, running on as little as 8.19GB VRAM while scaling up to 48GB for higher-quality outputs. For a small model (1.3B), we recommend choosing the NVIDIA L40. For the large model (14B), you can choose the NVIDIA A100.

Features of Wan 2.1 by Alibaba

With Wan 2.1 by Alibaba, you get:

• Multi-Tasking Powerhouse: Supports Text-to-Video, Image-to-Video, Video Editing, Text-to-Image and Video-to-Audio.
• Unrivalled Speed: 2.5x faster than competing models.
• Multilingual Processing: Excels in both English and Chinese.
• Lightweight Efficiency: Runs on 8.19GB VRAM with scalability to 48GB.
• Apache 2.0 Open-Source: Fully customisable for user-driven improvements.

What You Can Generate

Wan 2.1 allows you to generate videos up to 12 seconds at 24 fps, delivering 288 frames at resolutions up to 720p, though the lighter 1.3B variant is limited to 5 seconds at 480p. It’s perfect for dynamic content, multilingual storytelling, and fast-paced video creation.

You won’t believe we generated this adorable cat with Wan 2.1 on Hyperstack! Check out our step-by-step tutorial here to learn how we did it with Wan 2.1.

Conclusion

Open-source video generation models make high-quality, AI-driven visuals accessible to everyone. These models allow creators, developers and researchers to produce professional-grade videos without the high costs of proprietary tools. With continuous innovation and community-driven improvements, open-source solutions are becoming more powerful, versatile and efficient.

And the best part?

You can experiment with any of these open-source video generation models using Hyperstack’s high-end GPUs like NVIDIA A100, NVIDIA H100 PCIe, NVIDIA H100 SXM and cost-effective options like NVIDIA RTX A6000. Get started today and bring your AI-generated videos to life!

FAQs

What is the best open-source video generation model for cinematic-quality content?

SkyReels V1 by Skywork AI is the best option for cinematic-quality video generation. Trained on high-end film and TV clips, it delivers realistic human characters, expressive facial animations, and professional camera movement, making it ideal for storytelling and filmmaking.

Which open-source model is best for quick video generation on mid-range GPUs?

LTXVideo by Lightricks is optimised for speed and efficiency, running smoothly on GPUs with as little as 12GB VRAM. Its ComfyUI integration allows seamless creative workflows, making it perfect for rapid prototyping, social media content, and real-time video previews.

Can I fine-tune these video generation models with my own data?

Yes! Mochi 1 by Genmo offers an intuitive training process that allows users to fine-tune the model using their own videos. This makes it highly customisable for generating unique, high-fidelity video outputs tailored to specific creative needs.

Do these models require high-end GPUs?

While some models like LTXVideo and Wan 2.1 can run on mid-range GPUs, others like HunyuanVideo and Mochi 1 require high-end GPUs like NVIDIA A100 or NVIDIA H100 PCIe for optimal performance. Hyperstack provides both cost-effective and high-performance options. You can sign up here to access Hyperstack NVIDIA GPUs.

Is Wan 2.1  multilingual?

Yes, Wan 2.1 by Alibaba is multilingual video processing, supporting both English and Chinese. It also excels in text-to-video, image-to-video, video editing, and even video-to-audio conversion, making it highly versatile.