Based on the official announcement from Volcano Engine, the Doubao large model—Doubao-Seed-2.1-pro—has undergone an upgrade to version 0915, and its API has been comprehensively deployed on Volcano Ark. This enhancement is specifically designed to cater to enterprise-level production requirements, featuring all-around improvements in four pivotal domains: Agent task execution, multimodal coding capabilities, multimodal comprehension, and Token efficiency.