Doubao released four major models: capable of understanding emotions, adjusting tone style, and accurately pronouncing formulas.

Volcano Engine has released and upgraded four new Doubao large models, including Doubao Large Model 1.6 Upgrade, Doubao Large Model 1.6 Lite, Doubao Speech Synthesis Model 2.0, and Doubao Voice Replication Model 2.0. Doubao Large Model 1.6 Upgrade natively supports four thought lengths, making it the first model in China to natively support "tiered adjustment of thought length," balancing performance, latency, and cost. Doubao Large Model 1.6 Lite is lighter, has faster inference speed, and offers better cost-effectiveness.