Doubao Seed 2.1 Pro
ByteDance Seed · 2026-06-23
Doubao Seed 2.1 Pro is ByteDance Seed's flagship Seed2.1 model variant, announced on June 23, 2026. It targets stronger reasoning, agentic execution, multimodal understanding, coding, and complex productivity workflows, with the model card emphasizing real-world agent tasks, professional deliverables, computer use, and frontier research. The model is closed/proprietary and is made available through ByteDance's Doubao and Volcano Engine product channels.