Update README.md (#809)

Update Open-Sora v2.0 X link

README.md

@@ -11,7 +11,7 @@
 <div align="center">
     <a href="https://discord.gg/kZakZzrSUT"><img src="https://img.shields.io/badge/Discord-join-blueviolet?logo=discord&amp"></a>
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-    <a href="https://twitter.com/yangyou1991/status/1769411544083996787?s=61&t=jT0Dsx2d-MS5vS9rNM5e5g"><img src="https://img.shields.io/badge/Twitter-Discuss-blue?logo=twitter&amp"></a>
+    <a href="https://x.com/YangYou1991/status/1899973689460044010"><img src="https://img.shields.io/badge/Twitter-Discuss-blue?logo=twitter&amp"></a>
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@@ -23,12 +23,12 @@ Open-Sora not only democratizes access to advanced video generation techniques,
 streamlined and user-friendly platform that simplifies the complexities of video generation.
 With Open-Sora, our goal is to foster innovation, creativity, and inclusivity within the field of content creation.
 
-🎬 For a professional and better version of the model, please try [Video Ocean](https://video-ocean.com/).
+<!-- 🎬 For a professional and better version of the model, please try [Video Ocean](https://video-ocean.com/).
 <div align="center">
    <a href="https://video-ocean.com/">
    <img src="https://github.com/hpcaitech/public_assets/blob/main/colossalai/img/3.gif" width="850" />
    </a>
-</div>
+</div> -->
 
 <div align="center">
    <a href="https://hpc-ai.com/?utm_source=github&utm_medium=social&utm_campaign=promotion-opensora">
@@ -40,7 +40,7 @@ With Open-Sora, our goal is to foster innovation, creativity, and inclusivity wi
 
 ## 📰 News
 
-- **[2025.03.12]** 🔥 We released **Open-Sora 2.0** (11B). 🎬 11B model achieves [on-par performance](#evaluation) with 14B HunyuanVideo & 30B Step-Video on 📐VBench & 📊Human Preference. 🛠️ Fully open-source: checkpoints and training codes for training with only **$200K**. [[report]](https://github.com/hpcaitech/Open-Sora-Demo/blob/main/paper/Open_Sora_2_tech_report.pdf)
+- **[2025.03.12]** 🔥 We released **Open-Sora 2.0** (11B). 🎬 11B model achieves [on-par performance](#evaluation) with 11B HunyuanVideo & 30B Step-Video on 📐VBench & 📊Human Preference. 🛠️ Fully open-source: checkpoints and training codes for training with only **$200K**. [[report]](https://github.com/hpcaitech/Open-Sora-Demo/blob/main/paper/Open_Sora_2_tech_report.pdf)
 - **[2025.02.20]** 🔥 We released **Open-Sora 1.3** (1B). With the upgraded VAE and Transformer architecture, the quality of our generated videos has been greatly improved 🚀. [[checkpoints]](#open-sora-13-model-weights) [[report]](/docs/report_04.md) [[demo]](https://huggingface.co/spaces/hpcai-tech/open-sora)
 - **[2024.12.23]** The development cost of video generation models has saved by 50%! Open-source solutions are now available with H200 GPU vouchers. [[blog]](https://company.hpc-ai.com/blog/the-development-cost-of-video-generation-models-has-saved-by-50-open-source-solutions-are-now-available-with-h200-gpu-vouchers) [[code]](https://github.com/hpcaitech/Open-Sora/blob/main/scripts/train.py) [[vouchers]](https://colossalai.org/zh-Hans/docs/get_started/bonus/)
 - **[2024.06.17]** We released **Open-Sora 1.2**, which includes **3D-VAE**, **rectified flow**, and **score condition**. The video quality is greatly improved. [[checkpoints]](#open-sora-12-model-weights) [[report]](/docs/report_03.md) [[arxiv]](https://arxiv.org/abs/2412.20404)
@@ -61,11 +61,11 @@ With Open-Sora, our goal is to foster innovation, creativity, and inclusivity wi
 
 Demos are presented in compressed GIF format for convenience. For original quality samples and their corresponding prompts, please visit our [Gallery](https://hpcaitech.github.io/Open-Sora/).
 
-| **5s 1024×576**                                                                                                                                    | **5s 576×1024**                                                                                                                       | **5s 576×1024**                                                                                                                       |
-| --------------------------------------------------------------------------------------------------------------------------------------             | -----------------------------------------------------------------------------------------------------------------------------------   | ------------------------------------------------------------------------------------------------------------------------------------- |
-| [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/ft_0001_1_1.gif" width="">](https://streamable.com/e/8g9y9h?autoplay=1) | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/movie_0160.gif" width="">](https://streamable.com/e/k50mnv?autoplay=1)   | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/movie_0017.gif" width="">](https://streamable.com/e/bzrn9n?autoplay=1) |
+| **5s 1024×576**                                                                                                                                    | **5s 576×1024**                                                                                                                                    | **5s 576×1024**                                                                                                                                   |
+| -------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
+| [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/ft_0001_1_1.gif" width="">](https://streamable.com/e/8g9y9h?autoplay=1) | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/movie_0160.gif" width="">](https://streamable.com/e/k50mnv?autoplay=1)  | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/movie_0017.gif" width="">](https://streamable.com/e/bzrn9n?autoplay=1) |
 | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/ft_0012_1_1.gif" width="">](https://streamable.com/e/dsv8da?autoplay=1) | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/douyin_0005.gif" width="">](https://streamable.com/e/3wif07?autoplay=1) | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/movie_0037.gif" width="">](https://streamable.com/e/us2w7h?autoplay=1) |
-| [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/ft_0055_1_1.gif" width="">](https://streamable.com/e/yfwk8i?autoplay=1) | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/sora_0019.gif" width="">](https://streamable.com/e/jgjil0?autoplay=1) | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/movie_0463.gif" width="">](https://streamable.com/e/lsoai1?autoplay=1) |
+| [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/ft_0055_1_1.gif" width="">](https://streamable.com/e/yfwk8i?autoplay=1) | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/sora_0019.gif" width="">](https://streamable.com/e/jgjil0?autoplay=1)   | [<img src="https://github.com/hpcaitech/Open-Sora-Demo/blob/main/demo/v2.0/movie_0463.gif" width="">](https://streamable.com/e/lsoai1?autoplay=1) |
 
 
 <details>
@@ -285,10 +285,14 @@ On [VBench](https://huggingface.co/spaces/Vchitect/VBench_Leaderboard), Open-Sor
 
 ![VBench](https://github.com/hpcaitech/Open-Sora-Demo/blob/main/readme/v2_vbench.png)
 
-Human preference results show our model is on par with HunyuanVideo 14B and Step-Video 30B.
+Human preference results show our model is on par with HunyuanVideo 11B and Step-Video 30B.
 
 ![Win Rate](https://github.com/hpcaitech/Open-Sora-Demo/blob/main/readme/v2_winrate.png)
 
+With strong performance, Open-Sora 2.0 is cost-effective.
+
+![Cost](https://github.com/hpcaitech/Open-Sora-Demo/blob/main/readme/v2_cost.png)
+
 ## Contribution
 
 Thanks goes to these wonderful contributors:
@@ -323,11 +327,18 @@ Here we only list a few of the projects. For other works and datasets, please re
 ## Citation
 
 ```bibtex
-@software{opensora,
-  author = {Zangwei Zheng and Xiangyu Peng and Tianji Yang and Chenhui Shen and Shenggui Li and Hongxin Liu and Yukun Zhou and Tianyi Li and Yang You},
-  title = {Open-Sora: Democratizing Efficient Video Production for All},
+@article{opensora,
+  title={Open-sora: Democratizing efficient video production for all},
+  author={Zheng, Zangwei and Peng, Xiangyu and Yang, Tianji and Shen, Chenhui and Li, Shenggui and Liu, Hongxin and Zhou, Yukun and Li, Tianyi and You, Yang},
+  journal={arXiv preprint arXiv:2412.20404},
+  year={2024}
+}
+
+@software{opensorav2,
+  author = {Xiangyu Peng, Zangwei Zheng, Chenhui Shen, Tom Young, Xinying Guo, Binluo Wang, Hang Xu, Hongxin Liu, Mingyan Jiang, Wenjun Li, Yuhui Wang, Anbang Ye, Gang Ren, Qianran Ma, Wanying Liang, Xiang Lian, Xiwen Wu, Yuting Zhong, Zhuangyan Li, Chaoyu Gong, Guojun Lei, Leijun Cheng, Limin Zhang, Minghao Li, Ruijie Zhang, Silan Hu, Shijie Huang, Xiaokang Wang, Yuanheng Zhao, Yuqi Wang, Ziang Wei, Yang You},
+  title = {Open-Sora 2.0: Training a Commercial-Level Video Generation Model in $200k},
   month = {March},
-  year = {2024},
+  year = {2025},
   url = {https://github.com/hpcaitech/Open-Sora}
 }
 ```