Dola-Seed-2.0-Preview is a multimodal general-purpose language model developed by ByteDance. Officially released for public evaluation in February 2026, it serves as a preview version of the broader Seed 2.0 series. This series includes specialized variants such as Seed 2.0 Pro, Lite, and Mini, designed to accommodate a range of performance needs from high-throughput inference to complex, long-chain reasoning in production environments.
The model gained prominence upon its debut on the Arena.ai (Chatbot Arena) leaderboard, where it demonstrated competitive results in software engineering, mathematics, and complex coding tasks. It is noted for its reasoning capabilities, achieving gold-level performance in mathematics and science benchmarks such as IMO, CMO, and FrontierSci. ByteDance has positioned the model to handle specialized domain knowledge and multi-step agentic workflows that reflect real-world enterprise requirements.
In addition to its text-based reasoning, Dola-Seed-2.0-Preview incorporates advanced multimodal understanding, allowing it to process and analyze visual content with high precision. It has achieved leading scores on visual reasoning benchmarks like MathVision, MathVista, and LogicVista. The model is also optimized for processing long contexts, showing proficiency in structured document extraction tasks as evidenced by its performance on the DUDE and OmniDocBench 1.5 benchmarks. Unlike many contemporary Chinese large language models, the Seed 2.0 series is proprietary and is primarily accessible through ByteDance's internal application suite and the Volcano Engine API.