Seed2.0 - A series of general models launched by ByteDance

What is Seed2.0?

Seed2.0 is the latest large-scale model series launched by ByteDance's Seed team, including three general-purpose Agent models: Pro (doubao-seed-2-0-pro-260215), Lite (doubao-seed-2-0-lite-260215), and Mini (doubao-seed-2-0-mini-260215), as well as the dedicated Code model (doubao-seed-2-0-code-preview-260215). The models have undergone a comprehensive upgrade in multimodal understanding capabilities, achieving state-of-the-art (SOTA) performance in tasks such as document parsing, chart recognition, and hour-long video processing. They also enhance the ability to follow complex instructions and execute long-chain tasks, enabling the exploration of Erdős-level mathematical problems and transforming research ideas into feasible solutions. The Seed2.0 Pro and Code models are already available on the Doubao App and TRAE, respectively. The entire Seed2.0 model API is also available on Volcano Engine, with token pricing approximately an order of magnitude lower than top-tier models, balancing high performance and low cost.

Main functions of Seed2.0

• Multimodal understandingThe model can accurately analyze complex documents, charts, graphs, and hour-long video content.
• Visual reasoningThe model achieves state-of-the-art performance in visual reasoning tasks such as mathematical problem-solving and logical puzzle solving.
• Complex instruction executionSupports complex task instructions that strictly adhere to multiple constraints, multiple steps, and long chains.
• Agent task processingIt supports end-to-end continuous workflows for data retrieval, inductive analysis, and conclusion generation.
• Research supportThe model can transform research ideas into well-structured and executable experimental plans.
• Code generationIt supports complex software development and has full-stack programming and end-to-end project building capabilities.

The technical principles of Seed2.0

• Multimodal fusion architectureThe model employs a unified vision-language encoder to achieve high-dimensional alignment and joint representation of images, videos, and text, and improves the accuracy of capturing complex layouts and temporal dynamic information through an enhanced visual perception module.
• Long context modelingIt introduces efficient positional encoding and sparse attention mechanisms, supports long sequence processing of millions of tokens, and combines with the video tool VideoCut to achieve accurate slicing and keyframe extraction of long videos, reducing inference overhead while maintaining temporal understanding capabilities.
• Agent capabilities enhancedThrough large-scale instruction fine-tuning and reinforcement learning, the model's coverage of knowledge in long-tail domains is improved. The model adopts a multi-round verification mechanism to ensure the logical consistency and constraint satisfaction of each step in long-link tasks.
• Inference efficiency optimizationEmploying dynamic inference path selection and model distillation techniques, it achieves capability stratification among different model sizes (Pro, Lite, and Mini), and, combined with quantization and speculative decoding strategies, significantly reduces token costs.

How to use Seed 2.0

• Doubao AppAccess the Doubao App → Select "Expert" mode → Start a conversation to use the Seed2.0 Pro model.
• TRAE EditorAccess TRAE and select "Doubao-Seed-2.0-Code" in "Built-in Models" to call up a dedicated code model to assist in programming.
• Volcano Engine APIAccess the entire Seed2.0 model API series through the Volcano Ark platform, and call the Pro/Lite/Mini/Code versions as needed.

Seed2.0 project address

• Project official websitehttps://seed.bytedance.com/zh/seed2
• Technical Papers: https://lf3-static.bytednsdoc.com/obj/eden-cn/lapzild-tss/ljhwZthlaukjlkulzlp/seed2/0214/Seed2.0%20Model%20Card.pdf

Application scenarios of Seed2.0

• Enterprise Knowledge ProcessingThe model can automatically parse unstructured documents such as mixed charts, contracts, and reports, and extract key information to support decision-making.
• Intelligent Customer Service and Q&AThe model supports accurate understanding of user intent and completes multiple rounds of complex consultations and answers to professional questions in long-tail domains.
• Video content analysisIt efficiently processes hour-long videos, enabling key information location, real-time stream analysis, and intelligent summary generation.
• Research supportThe model can transform research hypotheses into actionable experimental protocols, supporting interdisciplinary literature reviews and data analysis.
• Software developmentThe model supports end-to-end construction of well-designed and fully functional mini-programs or complex application systems.