Topic analysis

Show HN: Lance – image/video generation and understanding in one model

Fengyi Fu * , Mengqi Huang *,✉ , Shaojin Wu * , Yunsheng Jiang * , Yufei Huo, Jianzhu Guo ✉,§ Hao Li, Yinghang Song, Fei Ding, Qian He, Zheren Fu, Zhendong Mao, Yongdong Zhang ByteDance * Equal contribution ✉ Corresponding authors § Project lead Lance is a 3B native unified multimodal model that supports image and video understanding, generation, and editing within a single framework. We are actively updating and improving this repository. If you find any bugs or have suggestions, please feel free to open an issue or submit a pull request (PR) 💖. Question: How many times did the person launch objects on the table? Options: (A) 3 (B) 2 (C) 4 Question: The person makes sets of repeated actions. How many distinct repeated actions did the person do? Options: (A) 2 (B) 3 (C) 4 Question: In which direction does the purple sphere move in the video? Options: (A) Down and to the right. (B) Up and to the left. (C) Up and to the right. (D) The object is stationary. Response: (A) Down and to the right. Question: What is the unrealistic phenomenon displayed in the video? Options: (A) The man can manipulate time via phone. (B) Man grabs an object through a phone screen. (C) Chocolate transforms into different objects. (D) Visible means of propulsion enables flight. Response: (B) Man grabs an object through a phone screen. Question: Offer a succinct account of the culinary process shown in this video. Response: Add tomato puree and mix it well with chicken pieces. Question: Provide a detailed description of the given video, capturing its key moments. Response: In a sunlit meadow, a small tortoiseshell butterfly rests on a purple flower. A bee, with black and yellow stripes, lands on the same flower. The butterfly flaps its wings gently, while the bee busies itself, collecting nectar. The flower sways slightly in the breeze. The butterfly then takes off, and the bee follows, both heading to the next flower. The scene is a vivid display of insect interaction in a natural setting, with the colors of the butterfly and the bee contrasting against the green background of the meadow. The video captures this peaceful moment in a short 6-second duration. Question: Is the largest segment greater than sum of all the other segments? Response: Yes, the largest segment in the pie chart is the blue one, which is the most populous segment. Question: What percentage of respondents want better border security? Question: What is the license plate number of the car? Response: The license plate number of the car is BX62 BFY. Question: According to the data from the proprietary market research, how much amount was spent on the promotional meetings and events during 1998? Response: According to the data from the proprietary market research, the total amount spent on the promotional meetings and events during 1998 was approximately $1.3 billion. Question: What is the appearance of the Colosseum in Rome, Italy? Response: The Colosseum in Rome, Italy is a magnificent ancient amphitheater made of stone and concrete. It is characterized by its large, arched openings and its semi-circular shape. The Colosseum has been partially restored, and its original color has faded, but the architectural details, like the columns and the semi-circular arches, are still visible. The lighting in the image highlights the grandeur and historical significance of the Colosseum, making it stand out against the backdrop of the evening sky. Question: How does a total solar eclipse look like from Earth? Response: A total solar eclipse looks like a dark circle with a bright, white outer edge. This is a result of the Earth's rotation and the Earth's shadow, which partially obscures the sun's light. The bright white edge of the eclipse is caused by the sun's high energy and its interaction with the Earth's atmosphere, while the dark part of the eclipse is due to the Earth's shadow and the surrounding air currents. The solar eclipse's shape, with its bright white edge and dark center, is similar to the shape of a full moon or a dark disk. It is a natural phenomenon that occurs in the atmosphere of the Earth and is an important part of the solar system. Please download all necessary model checkpoints from Lance-3B on Hugging Face and place them in the downloads/ directory. We provide a unified command-line interface for all generation / editing / understanding tasks: We provide task-specific one-click commands for different generation, editing, and understanding tasks. For understanding examples: You can configure the following hyperparameters at the top of the inference_lance.sh script: † indicates methods that use LLM rewriters for prompt rewriting before generation. † indicates methods that use LLM rewriters for prompt rewriting before generation. Ready-to-run benchmark scripts are provided under benchmarks/ : Copyright 2025 Bytedance Ltd. and/or its affiliates. We would like to thank the contributors of BAGEL , Qwen2.5-VL-3B-Instruct , and Wan2.2 for their open research and contributions. If you find Lance useful for your project or research, welcome to 🌟 this repo and cite our work using the following BibTeX: For questions, issues, or collaborations, please contact Mengqi Huang and Jianzhu Guo .