SkyReels-V2 是什么？
SkyReels-V2 是由昆仑万维开源的一款视频生成大模型，首创“扩散强迫（Diffusion-forcing）”训练框架，具备生成高保真、连贯、长时长（30s 以上）的影视级视频的能力。模型融合了多模态大语言模型（MLLM）、强化学习、视频理解与扩散优化等多项技术，适用于故事生成、图像到视频（I2V）、运镜控制和多元素一致性生成等丰富场景。
SkyReels-V2 的主要特点
- 无限时长生成能力：基于扩散强迫（Diffusion-forcing）技术，实现连贯、稳定、长达数十秒甚至理论无限时长的视频输出。
- 影视级视频质量：在清晰度、色彩、构图和镜头语言等方面接近真实影视内容，适用于专业创作场景。
- 精准指令遵循与一致性控制：通过 SkyCaptioner-V1 理解模型和强化学习机制，提升提示词响应能力与跨帧一致性。
- 高质量运动生成：解决传统模型运动扭曲问题，生成流畅、自然、物理合理的动作与镜头变换。
- 多种生成范式支持：支持文本生成视频（T2V）、图像到视频（I2V）、多元素合成（E2V）、运镜模拟等复杂场景。
- 全开源与低训练成本：核心模型及子模块（包括 A2 和 Captioner）均已开源，支持中低算力高效训练与部署。
SkyReels-V2 的视频demo
Prompt：A graceful white swan with a curved neck and delicate feathers swimming in a serene lake at dawn, its reflection perfectly mirrored in the still water as mist rises from the surface, with the swan occasionally dipping its head into the water to feed.
Prompt：A graceful sea turtle glides through the ocean currents, its powerful flippers moving rhythmically as it swims. The turtle's smooth, greenish-brown shell catches glimpses of sunlight filtering through the water, creating a mesmerizing play of light and shadow. Schools of small fish dart around the turtle, adding life to the underwater scene. The background showcases vibrant coral reefs and swaying seaweed, creating a rich, dynamic marine environment. Wide-shot underwater scene with gentle camera movement following the turtle's path.
Prompt：A jellyfish floats in deep blue waters, its translucent bell rhythmically contracting and expanding. Its tentacles drift like ribbons in the water. As the jellyfish gracefully swims, we see it passing through a colorful coral reef, where the orange, pink, and purple corals create a striking contrast against the blue-white hues of the jellyfish. The jellyfish continues forward, entering a forest of seaweed, where slender green fronds sway gently with the ocean currents. Finally, the jellyfish drifts toward an open sandy area, scattered with a few glistening starfish and shells. Throughout the journey, sunlight penetrates from the surface, creating beams that cut through the water, adding shifting patterns of light and shadow to this dreamlike underwater world.
SkyReels-V2 的应用场景
- AI 故事视频生成：通过连续文本提示生成具有叙事连贯性的长镜头影视内容。
- 图像到视频合成（I2V）：支持以图像为条件生成高一致性视频，适用于素材动化。
- 导演级运镜模拟：精细控制摄像机视角与运动轨迹，适用于短剧、广告脚本制作。
- 多角色合成视频（E2V）：将人物、物体、背景元素统一协调生成视频，广泛用于虚拟电商、创意内容制作。
如何使用SkyReels-V2 ？
- 在线体验：https://www.skyreels.ai/
- GitHub仓库：https://github.com/SkyworkAI/SkyReels-V2
- 模型地址：https://huggingface.co/collections/Skywork/skyreels-v2-6801b1b93df627d441d0d0d9
- 论文链接：https://arxiv.org/abs/2504.13074
